Broadwell (microarchitecture) explained

Broadwell (microarchitecture) should not be confused with Broadway (microprocessor).

Broadwell
Produced-End:	November 2018^[1]
Size-From:	14 nm (Tri-Gate)
Cpuid:	0306D4h
L1cache:	64 KB per core
L2cache:	256 KB per core
L3cache:	2-6 MB (shared)
L4cache:	128 MB of eDRAM (Iris Pro models only)
Arch:	x86-16, IA-32, x86-64
Microarch:	Haswell
Extensions2:	AES-NI, CLMUL, RDRAND, TXT
Extensions:	MMX, SSE, SSE2, SSE3, SSSE3, SSE4, SSE4.1, SSE4.2, AVX, AVX2, TSX, FMA3
Extensions3:	VT-x, VT-d
Sock1:	LGA 1150
Sock2:	BGA 1364
Sock3:	LGA 2011-v3
Successor:	Skylake (tock/architecture)
Support Status:	Unsupported
Qpi-Slowest:	6.4
Qpi-Slow-Unit:	GT/s
Qpi-Fastest:	9.6
Qpi-Fast-Unit:	GT/s
Dmi-Slowest:	4
Dmi-Slow-Unit:	GT/s
Soldby:	Intel
Designfirm:	Intel
Manuf1:	Intel
Pcode1:	Rockwell

Broadwell (previously Rockwell) is the fifth generation of the Intel Core processor. It is Intel's codename for the 14 nanometer die shrink of its Haswell microarchitecture. It is a "tick" in Intel's tick–tock principle as the next step in semiconductor fabrication.^{[2] [3] [4]} Like some of the previous tick-tock iterations, Broadwell did not completely replace the full range of CPUs from the previous microarchitecture (Haswell), as there were no low-end desktop CPUs based on Broadwell.^[5]

Some of the processors based on the Broadwell microarchitecture are marketed as "5th-generation Core" i3, i5 and i7 processors. This moniker is however not used for marketing of the Broadwell-based Celeron, Pentium or Xeon chips. This microarchitecture also introduced the Core M processor branding.

Broadwell is the last Intel platform on which Windows 7 is supported by either Intel or Microsoft; however, third-party hardware vendors have offered limited Windows 7 support on more recent platforms.^[6]

Broadwell's H and C variants are used in conjunction with Intel 9 Series chipsets (Z97, H97 and HM97),^[7] in addition to retaining backward compatibility with some of the Intel 8 Series chipsets.

Design and variants

Broadwell has been launched in three major variants:^[8]

• BGA package:
  • Broadwell-Y: system on a chip (SoC); 4.5 W and 3.5 W thermal design power (TDP) classes, for tablets and certain ultrabook-class implementations. GT2 GPU was used, while maximum supported memory is 8 GB of LPDDR3-1600. These were the first chips to roll out, in Q3/Q4 2014. At Computex 2014, Intel announced that these chips would be branded as Core M.^[9] TSX instructions are disabled in this series of processors because a bug that cannot be fixed with a microcode update exists.^[10]
  • Broadwell-U: SoC; two TDP classes 15 W for 2+2 and 2+3 configurations (two cores with a GT2 or GT3 GPU) as well as 28 W for 2+3 configurations.^[11] Designed to be used on motherboards with the PCH-LP chipset for Intel's ultrabook and NUC platforms. Maximum supported is up to 16 GB of DDR3 or LPDDR3 memory, with DDR3-1600 and LPDDR3-1867 as the maximum memory speeds. The 2+2 configuration is scheduled for Q4 2014, while the 2+3 is estimated for Q1 2015. For Broadwell-U models with integrated 5x00 GPUs, die size is 82 mm² with a total of 1.3 billion transistors, while for the models with 6100 and 6200 GPUs the die size is 133 mm² with a total of 1.9 billion transistors.
  • Broadwell-H: 37 W and 47 W TDP classes, for motherboards with HM86, HM87, QM87 and the new HM97 chipsets for "all-in-one" systems, mini-ITX form-factor motherboards, and other small footprint formats. It was expected to come in two different variants, as single and dual chips; the dual chips (4 cores, 8 threads) would have GT3e and GT2 GPU, while a single chip (SoC; two cores, four threads) would have GT3e GPU. Maximum supported memory is 32 GB of DDR3-1600.^[12] These are scheduled for Q2 2015.
• LGA 1150 socket:
  • Broadwell-DT: quad-core unlocked desktop version with GT3e integrated graphics (Iris Pro 6200) and 128 MB of eDRAM L4 cache, in a 65 W TDP class. Announced to be backward compatible with the LGA 1150 motherboards designed for Haswell processors.^[13]
• LGA 2011-1 socket:
  • Broadwell-EX: Brickland platform, for mission-critical servers. Intel QuickPath Interconnect (QPI) is expected to be updated to version 1.1, enabling seamless scaling beyond eight-socket systems. Maximum supported memory speeds are expected to be DDR3-1600 and DDR4-1866.^{[14] [15]} Up to 24 core and 48 threads, up to 60 MB of L3 cache and 32 PCI Express 3.0 lanes, with 115 - 165 W TDP.
• LGA 2011-v3 socket:
  • Broadwell-EP: to be marketed as Xeon E5-2600 v4 etc., while using the C610 Wellsburg chipset platform. Up to 22 cores and 44 threads, up to 55 MB of total cache and 40 PCI Express 3.0 lanes, with 55–160 W TDP classes. Maximum supported memory speed is quad-channel DDR4-2400.^[16]
  • Broadwell-E: HEDT platform, for enthusiasts. Announced at Computex 2016, it was released in July that year. Consisting of four processors: the 6800K, 6850K, 6900K, and the deca-core 6950X, with clock speeds ranging from 3 GHz to 4 GHz as well as up to 25 MB of L3 cache.

Instruction set extensions

Broadwell introduces some instruction set architecture extensions:^{[17] [18]}

• Intel ADX: ADOX and ADCX for improving performance of arbitrary-precision integer operations^[19]
• [[RDSEED]] for generating 16-, 32- or 64-bit random numbers from a thermal noise entropy stream, according to NIST SP 800-90B and 800-90C^[20]
• [[PREFETCHW]] instruction
• Supervisor Mode Access Prevention (SMAP) optionally disallows access from kernel-space memory to user-space memory, a feature aimed at making it harder to exploit software bugs.^[21]
• Transactional Synchronization Extensions: This instruction set is reintroduced for all versions of Broadwell except for Broadwell-Y because a bug that cannot be fixed via microcode update in Broadwell-Y and all versions of Haswell except for the Haswell-EX variants has been fixed with a new CPU stepping level. Erratum: In fact, among Broadwell i3, i5 and i7 CPUs, only four of them support TSX instructions (i7 5650U and 5600U, i5 5350U and 5300U); it is not even precised on Intel's website whether i5 5200U does support TSX instructions. (ark.intel.com/products/)

New features

Broadwell's Intel Quick Sync Video hardware video decoder adds VP8 hardware decoding^[22] and hybrid encoding^[23] support.^[24] HEVC decode is achieved through a combination of the fixed function video decoder and shaders.^[25] Also, it has two independent bit stream decoder (BSD) rings to process video commands on GT3 GPUs; this allows one BSD ring to process decoding and the other BSD ring to process encoding at the same time.^[26]

Broadwell's integrated GPU supports on Windows Direct3D 11.2, OpenGL 4.4 (OpenGL 4.5 on Linux^[27]) and OpenCL 2.0.^{[28] [29] [30]} However, it is marketed as Direct3D-12-ready.^[31] Broadwell-E introduced Intel Turbo Boost Max Technology 3.0.^[32]

List of Broadwell processors

Desktop processors

Processor branding and model		Cores (threads)	GPU model	CPU frequency		TDP	Graphics clock rate		L3 cache	L4 cache	Release date	Price (USD)	Socket
				Base	Turbo		Base	Max
Core i7	5775C	4 (8)	Iris Pro 6200	3.3 GHz	3.7 GHz	65 W	300 MHz	1.15 GHz	6 MB	128 MB	^[33]	$366	LGA 1150
Core i5	5675C	4 (4)		3.1 GHz	3.6 GHz			1.1 GHz	4 MB			$276

"Broadwell-E" HEDT (14 nm)

Embedded processors

Processor branding and model		Cores (threads)	GPU model	CPU frequency		TDP	Graphics clock rate		L3 cache	L4 cache	Release date	Price (USD)	Socket
				Base	Turbo		Base	Max
Core i7	5775R	4 (8)	Iris Pro 6200	3.3 GHz	3.8 GHz	65 W	300 MHz	1.15 GHz	6 MB	128 MB		$348	BGA 1364
Core i5	5675R	4 (4)		3.1 GHz	3.6 GHz			1.1 GHz	4 MB			$265
	5575R			2.8 GHz	3.3 GHz			1.05 GHz				$244
Xeon E3	1284Lv4	4 (8)	Iris Pro P6300	2.9 GHz	3.8 GHz	47 W		1.15 GHz	6 MB			OEM
	1278Lv4			2.0 GHz	3.3 GHz		800 MHz	1.0 GHz				$546
	1258Lv4		P5700	1.8 GHz	3.2 GHz		700 MHz					$481

Mobile processors

Processor branding and model		Cores (threads)	GPU model	Base frequency	Turbo frequency		TDP	cTDP down	Graphics clock rate		L3 cache	Release date	Price (USD)
					Single Core	Dual Core			Base	Max
Core i7	5950HQ	4 (8)	Iris Pro 6200	2.9 GHz	3.7 GHz		47 W		300 MHz	1.15 GHz	6 MB	June 2015	$623
	5850HQ		Iris Pro 6200	2.7 GHz	3.6 GHz		47 W		300 MHz	1.1 GHz	6 MB	June 2015	$434
	5750HQ		Iris Pro 6200	2.5 GHz	3.4 GHz		47 W	600 MHz / 37 W	300 MHz	1.05 GHz	6 MB	June 2015	$434
	5700HQ		HD 5600	2.7 GHz	3.5 GHz		47 W	600 MHz / 37 W	300 MHz	1.05 GHz	6 MB	June 2015	$378
	5650U	2 (4)	HD 6000	2.2 GHz	3.2 GHz	3.1 GHz	15 W	600 MHz / 9.5 W	300 MHz	1 GHz	4 MB	Q1 2015	$426
	5600U		HD 5500	2.6 GHz	3.2 GHz	3.1 GHz	15 W	600 MHz / 7.5 W	300 MHz	950 MHz	4 MB	Q1 2015	$393
	5557U		Iris 6100	3.1 GHz	3.4 GHz	3.4 GHz	28 W	N/A / 23 W	300 MHz	1.1 GHz	4 MB	Q1 2015	$426
	5550U		HD 6000	2.0 GHz	3.0 GHz	2.9 GHz	15 W	600 MHz / 9.5 W	300 MHz	1 GHz	4 MB	Q1 2015	$426
	5500U		HD 5500	2.4 GHz	3.0 GHz	2.9 GHz	15 W	600 MHz / 7.5 W	300 MHz	950 MHz	4 MB	Q1 2015	$393
Core i5	5350H		Iris Pro 6200	3.1 GHz	3.5 GHz		47 W		300 MHz	1.05 GHz	4 MB	June 2015	$289
	5350U		HD 6000	1.8 GHz	2.9 GHz	2.7 GHz	15 W	600 MHz / 9.5 W	300 MHz	1 GHz	3 MB	Q1 2015	$315
	5300U		HD 5500	2.3 GHz	2.9 GHz	2.7 GHz	15 W	600 MHz / 7.5 W	300 MHz	900 MHz	3 MB	Q1 2015	$281
	5287U		Iris 6100	2.9 GHz	3.3 GHz	3.3 GHz	28 W	600 MHz / 23 W	300 MHz	1.1 GHz	3 MB	Q1 2015	$315
	5257U		Iris 6100	2.7 GHz	3.1 GHz	3.1 GHz	28 W	600 MHz / 23 W	300 MHz	1.05 GHz	3 MB	Q1 2015	$315
	5250U		HD 6000	1.6 GHz	2.7 GHz	2.5 GHz	15 W	600 MHz / 9.5 W	300 MHz	950 MHz	3 MB	Q1 2015	$315
	5200U		HD 5500	2.2 GHz	2.7 GHz	2.5 GHz	15 W	600 MHz / 7.5 W	300 MHz	900 MHz	3 MB	February 2015^[34]	$281
Core i3	5157U		Iris 6100	2.5 GHz			28 W	600 MHz / 23 W	300 MHz	1 GHz	3 MB	January 2015	$315
	5020U		HD 5500	2.2 GHz			15 W	600 MHz / 10 W	300 MHz	900 MHz	3 MB	March 2015	$281
	5015U		HD 5500	2.1 GHz			15 W	600 MHz / 10 W	300 MHz	850 MHz	3 MB	March 2015	$275
	5010U		HD 5500	2.1 GHz			15 W	600 MHz / 10 W	300 MHz	900 MHz	3 MB	January 2015	$281
	5005U		HD 5500	2.0 GHz			15 W	600 MHz / 10 W	300 MHz	850 MHz	3 MB	January 2015	$275
Pentium	3825U		HD Graphics	1.9 GHz			15 W	600 MHz / 10 W	300 MHz	850 MHz	2 MB	March 2015
	3805U	2 (2)	HD Graphics	1.9 GHz			15 W	600 MHz / 10 W	100 MHz	800 MHz	2 MB	Q1 2015	$161
Celeron	3755U		HD Graphics	1.7 GHz			15 W	600 MHz / 10 W	100 MHz	800 MHz	2 MB	Q1 2015	$107
	3205U		HD Graphics	1.5 GHz			15 W	600 MHz / 10 W	100 MHz	800 MHz	2 MB	Q1 2015	$107

Core M Ultra Low Power Mobile Processors

Processor Branding & Model	Cores (Threads)	GPU Model	Programmable TDP^[35]				CPU Turbo	Graphics Clock rate		L3 Cache	Release Date	Price (USD)
SDP^[36] ^[37]			cTDP down	Nominal TDP	cTDP up	1-core	Normal	Turbo
Core M (vPro)	5Y71	2 (4)^[38]	HD 5300  (GT2)^[39]	3.5 W	3.5 W / 600 MHz	4.5 W / 1.2 GHz	6 W / 1.4 GHz	2.9 GHz	300 MHz	900 MHz	4 MB		$281
	5Y70					4.5 W / 1.1 GHz		2.6 GHz	100 MHz	850 MHz
Core M	5Y51			3.5 W	3.5 W / 600 MHz		6 W / 1.3 GHz		300 MHz	900 MHz
	5Y31					4.5 W / 900 MHz	6 W / 1.1 GHz	2.4 GHz		850 MHz
	5Y10c					4.5 W / 800 MHz	6 W / 1 GHz	2.0 GHz		800 MHz
	5Y10a				100 MHz
	5Y10^[40]			4 W / ? MHz

1. When a cooler or quieter mode of operation is desired, this mode specifies a lower TDP and lower guaranteed frequency versus the nominal mode.
2. This is the processor's rated frequency and TDP.
3. When extra cooling is available, this mode specifies a higher TDP and higher guaranteed frequency versus the nominal mode.

Server processors

SoC processors

Processor branding and model		Cores (threads)	Base frequency	Turbo frequency		TDP	Socket	Memory		L3 cache	Release date	Price (USD)
				Single core	All cores			Type	Channel
Xeon D	D-1587	16 (32)	1.7 GHz	2.3 GHz	65 W	FCBGA 1667	DDR4 up to 128 GB w/ ECC support	Dual	24 MB	Q1 2016	$1754
	D-1577		1.3 GHz		2.1 GHz					45 W	Q1 2016	$1477
	D-1571		1.3 GHz		2.1 GHz						Q1 2016	$1222
	D-1567	12 (24)	2.1 GHz		2.7 GHz				65 W	18 MB	Q1 2016	$1299
	D-1559		1.5 GHz		2.1 GHz				45 W		Q2 2016	$883
	D-1557		1.5 GHz		2.1 GHz						Q1 2016	$844
	D-1553N	8 (16)	2.3 GHz		2.7 GHz				65 W	12 MB	Q3 2017	$855
	D-1548		2.0 GHz		2.6 GHz				45 W		Q4 2015	$675
	D-1543N		1.9 GHz		2.4 GHz						Q3 2017	$652
	D-1541		2.1 GHz		2.7 GHz						Q4 2015	$581
	D-1540		2.0 GHz		2.6 GHz						Q1 2015	$581
	D-1539		1.6 GHz		2.2 GHz				35 W		Q2 2016	$590
	D-1537		1.7 GHz		2.3 GHz						Q4 2015	$571
	D-1533N	6 (12)	2.1 GHz		2.7 GHz				45 W	9 MB	Q3 2017	$470
	D-1531		2.2 GHz		2.7 GHz						Q4 2015	$348
	D-1529	4 (8)	1.3 GHz		1.3 GHz				20 W	6 MB	Q2 2016	$324
	D-1528	6 (12)	1.9 GHz		2.5 GHz				35 W	9 MB	Q4 2015	$389
	D-1527	4 (8)	2.2 GHz		2.7 GHz					6 MB	Q4 2015	$259
	D-1523N		2.0 GHz		2.6 GHz				45 W		Q3 2017	$256
	D-1521		2.4 GHz		2.7 GHz						Q4 2015	$199
	D-1520		2.2 GHz		2.6 GHz						Q1 2015	$199
	D-1518		2.2 GHz		2.2 GHz				35 W		Q4 2015	$234
	D-1513N		1.6 GHz		2.2 GHz						Q3 2017	$192
Pentium D	D1519		1.5 GHz		2.1 GHz				25 W		Q2 2016	$200
	D1517		1.6 GHz		2.2 GHz						Q4 2015	$194
	D1509	2 (2)	1.5 GHz		TBA				19 W	3 MB		$156
	D1508	2 (4)	2.2 GHz		2.6 GHz				25 W			$129
	D1507	2 (2)	1.2 GHz		TBA				20 W			$103

Server CPUs

Processor branding and model		Cores (threads)	GPU model	CPU clock rate		Graphics clock rate		L3 cache	TDP	Release date	Release price (USD) tray / box	Motherboard
				Normal	data-sort-type="number"	Turbo	Normal					data-sort-type="number"	Turbo	Socket	Interface	Memory
Xeon E3 v4	1285v4	4 (8)	Iris Pro P6300	3.5 GHz	3.8 GHz	300 MHz	1.15 GHz	6 MB	95 W	Q2 15	$556 / —	LGA 1150	DMI 2.0 PCIe 3.0	DDR3 or DDR3L 1333/1600/1866 with ECC
	1285Lv4			3.4 GHz					65 W		$445 / —
	1265Lv4			2.3 GHz	3.3 GHz		1.05 GHz		35 W		$417 / —

Single/dual socket CPUs

• Socket: LGA 2011-3 Just like Haswell-EP, the Broadwell-EP Xeon E5 has three different die configurations. The largest die (454 mm²), and highest core count (16 - 22) SKUs still work with a two-ring configuration connected by two bridges. The second configuration supports 12 to 15 cores and is a smaller version (306mm²). These dies still have two memory controllers. The smallest 10-core die uses only one dual ring, two columns of cores, and only one memory controller.
• Interface: PCIe 3.0

Processor branding and model		Cores (threads)	CPU clock rate		L3 cache	TDP	Release date	Release price	Sockets	MemorySupport
			Normal	data-sort-type="number"							Turbo
Xeon E5 v4	2699A v4	22 (44)	2.4 GHz	3.6 GHz	55 MB	145 W	Q2 16	$4938	2	DDR4 1600/1866/2133/2400 with ECC (Note: 2696 v4 and 2686 v4 additionally supports, DDR3 1333/1600/1866 with ECC)
	2699 v4	22 (44)	2.2 GHz	3.6 GHz	55 MB	145 W	Q1 16	$4115
	2698 v4	20 (40)	2.2 GHz	3.6 GHz	50 MB	135 W		$3226
	2697 v4	18 (36)	2.3 GHz	3.6 GHz	45 MB	145 W		$2702
	2697A v4	16 (32)	2.6 GHz	3.6 GHz	40 MB	145 W		$2891
	2696 v4	22 (44)	2.2 GHz	3.7 GHz	55 MB	150 W		OEM
	2695 v4	18 (36)	2.1 GHz	3.3 GHz	45 MB	120 W		$2424
	2690 v4	14 (28)	2.6 GHz	3.5 GHz	35 MB	135 W		$2090
	2689 v4	10 (20)	3.1 GHz	3.8 GHz	25 MB	165 W		$2723
	2687W v4	12 (24)	3.0 GHz	3.5 GHz	30 MB	160 W		$2141
	2686 v4	18 (36)	2.3 GHz	3.0 GHz	45 MB	145 W		OEM
	2683 v4	16 (32)	2.1 GHz	3.0 GHz	40 MB	120 W		$1846
	2680 v4	14 (28)	2.4 GHz	3.3 GHz	35 MB	120 W		$1745
	2667 v4	8 (16)	3.2 GHz	3.6 GHz	25 MB	135 W		$2057
	2660 v4	14 (28)	2.0 GHz	3.2 GHz	35 MB	105 W		$1445
	2658 v4		2.3 GHz	2.8 GHz				$1832
	2650 v4	12 (24)	2.2 GHz	2.9 GHz	30 MB	105 W		$1166
	2650L v4	14 (28)	1.7 GHz	2.5 GHz	35 MB	65 W		$1329
	2648L v4		1.8 GHz	2.5 GHz		75 W		$1544
	2643 v4	6 (12)	3.4 GHz	3.7 GHz	20 MB	135 W		$1552
	2640 v4	10 (20)	2.4 GHz	3.4 GHz	25 MB	90 W		$939		DDR4 1600/1866/2133 with ECC
	2637 v4	4 (8)	3.5 GHz	3.7 GHz	15 MB	135 W		$996		DDR4 1600/1866/2133/2400 with ECC
	2630 v4	10 (20)	2.2 GHz	3.1 GHz	25 MB	85 W		$667		DDR4 1600/1866/2133 with ECC
	2630L v4		1.8 GHz	2.9 GHz		55 W		$612
	2628L v4	12 (24)	1.9 GHz	2.4 GHz	30 MB	75 W		$1364
	2623 v4	4 (8)	2.6 GHz	3.2 GHz	10 MB	85 W		$444
	2620 v4	8 (16)	2.1 GHz	3.0 GHz	20 MB			$417
	2618L v4	10 (20)	2.2 GHz	3.2 GHz	25 MB	75 W		$779
	2609 v4	8 (8)	1.7 GHz	1.7 GHz	20 MB	85 W		$306		DDR4 1600/1866 with ECC
	2608L v4	8 (16)	1.6 GHz	1.7 GHz		50 W		$363
	2603 v4	6	1.7 GHz	1.7 GHz	15 MB	85 W		$213
	1680 v4	8 (16)	3.4 GHz	4.0 GHz	20 MB	140 W	Q2 16	$1723	1	DDR4 1600/1866/2133/2400 with ECC
	1660 v4		3.2 GHz	3.8 GHz				$1113
	1650 v4	6 (12)	3.6 GHz	4.0 GHz	15 MB			$617
	1630 v4	4 (8)	3.7 GHz	4.0 GHz	10 MB			$406
	1620 v4		3.5 GHz	3.8 GHz				$294

Roadmap and history

See main article: article and Tick–tock model.

On September 10, 2013, Intel showcased the Broadwell 14 nm processor in a demonstration at IDF. Intel CEO Brian Krzanich claimed that the chip would allow systems to provide a 30 percent improvement in power use over the Haswell chips released in mid-2013. Krzanich also claimed that the chips would ship by the end of 2013;^[41] however, the shipment was delayed due to low yields from Intel's 14 nm process.^[42]

On October 21, 2013, a leaked Intel roadmap indicated a late 2014 or early 2015 release of the K-series Broadwell on the LGA 1150 platform, in parallel with the previously announced Haswell refresh. This would coincide with the release of Intel's 9-series chipset, which would be required for Broadwell processors due to a change in power specifications for its LGA 1150 socket.^{[43] [44]}

On May 18, 2014, Reuters quoted Intel's CEO promising that Broadwell-based PCs would be on shelves for the holiday season, but probably not for the back-to-school shopping.^[45]

Mobile CPUs were expected in Q4 2014 and high-performance quad-core CPUs in 2015. The mobile CPUs would benefit from the reduced energy consumption of the die shrink.^{[46] [47]}

On June 18, 2014, Intel told CNET that while some specialized Broadwell-based products would be out in Q4 2014, "broader availability" (including mobile CPUs) would only happen in 2015.^[48]

, Broadwell CPUs were available to Intel's hardware partners in sample quantities.^[49] Intel was expected to release 17 Broadwell U series family microprocessors at CES 2015.^[50] Also, according to a leak posted on vr-zone, Broadwell-E chips would be available in 2016.^[51]

On August 11, 2014, Intel unveiled formally its 14 nm manufacturing process, and indicated that mobile variants of the process would be known as Core M products. Additionally, Core M products were announced to be shipping during the end of 2014, with desktop variants shipping shortly after.^[52]

With Broadwell, Intel focused mainly on laptops, miniature desktops, and all-in-one systems.^[53] This left traditional desktop users with no new socketed CPU options beyond fourth-generation Haswell, which first arrived in 2013. Even though the company finally introduced two Broadwell desktop chips in the summer of 2015, it launched its high-end sixth-generation Skylake CPUs very shortly thereafter. In September 2015, Kirk Skaugen, senior vice president and general manager of Intel's Client Computing Group, admitted that skipping desktops with Broadwell was a poor decision. Between the end-of-life for Windows XP in 2014 and the lack of new desktop chips, Intel had not given desktop PC users any good reasons to upgrade in 2015.^[53]

Releases

On September 5, 2014, Intel launched the first three Broadwell-based processors that belong to the low-TDP Core M family, Core M 5Y10, Core M 5Y10a and Core M 5Y70.^[54]

On October 9, 2014, the first laptop with Broadwell Intel Core M 5Y70 CPU, Lenovo Yoga 3 Pro, was launched.^[55]

On October 31, 2014, four more Broadwell based CPUs were launched belonging to Core M Family, increasing the number of launched Broadwell CPUs to seven.^[56]

On January 5, 2015, 17 additional Broadwell laptop CPUs were launched for the Celeron, Pentium and Core i3, i5 and i7 series.^[57]

On March 31, 2016, Intel officially launched 14 nm Broadwell-EP Xeon E5 V4 CPUs.^[58]

On May 30, 2016, Intel officially launched 14 nm Broadwell-E Core i7 69xx/68xx processor family.

See also

• List of Intel CPU microarchitectures
• List of Intel Core M microprocessors

External links

• Intel to launch Broadwell "U" series CPUs at CES 2015

Notes and References

1. Web site: Perillo . Ron . November 9, 2017 . Intel Broadwell-E CPUs Officially Discontinued . 2020-07-29 . eTeknix.
2. Web site: 22nm Details . Intel . presentation . January 4, 2012.
3. Web site: Demerjian . Charlie . After Intel's Haswell comes Broadwell . March 31, 2011 . SemiAccurate . January 4, 2012.
4. Web site: Intel Broadwell CPUs to Arrive Later This Year. May 22, 2014. May 31, 2014. Tom's Hardware. Broekhuijsen. Niels. July 27, 2014. https://web.archive.org/web/20140727090943/http://www.tomshardware.co.uk/intel-broadwell-release-information-2014,news-47981.html. dead.
5. Web site: Lower-end desktop CPUs won't get Broadwell, will need to wait for Skylake. Ars Technica. September 5, 2014.
6. News: Biostar Adds Windows 7 Support to Dozens of Current Gen Motherboards. Tom's Hardware . April 10, 2019.
7. Web site: Sam . Reynolds . Intel's 9-series chipsets will support Broadwell . vr-zone.com . August 26, 2013 . November 20, 2013 . https://web.archive.org/web/20131120050809/http://vr-zone.com/articles/intels-9-series-will-support-broadwell/53203.html . November 20, 2013.
8. Web site: Intel Broadwell Production Plan Leaked – BDW-H Delayed To May 2015 . May 21, 2014 . May 21, 2014 . WCCFTech.
9. Web site: Intel Keynote at Computex 2014: 14nm Core-M, SoFIA, Devil's Canyon, DC P3700 and RealSENSE . AnandTech . June 3, 2014 . Ian . Cutress . June 5, 2014.
10. News: Scott . Wasson . Errata prompts Intel to disable TSX in Haswell, early Broadwell CPUs . . August 12, 2014 . March 23, 2016 .
11. Web site: Intel Broadwell GPUs to use HD 5x00, Iris 6100 and Iris Pro 6200 branding . cpu-world.com.
12. Web site: Intel's 14nm Process 'Broadwell' Lineup Details Leaked . December 12, 2013 . December 12, 2013 . WCCFTech.
13. Web site: Intel Broadwell Core i7-5775C and Core i5-5675C Processors With Iris Pro Graphics 6200 Detailed – Launching in Q2 2015 . March 23, 2015 . March 24, 2015 . wccftech.com.
14. Web site: Valich . Theo . Intel Brickland & Grantley Platforms Revealed: Ivy Bridge-EX, Haswell-EX, Broadwell-EX . Vr-zone.com . January 10, 2014 . January 19, 2014 . https://web.archive.org/web/20140201181830/http://vr-zone.com/articles/intel-brickland-grantley-platforms-revealed-ivy-bridge-ex-haswell-ex-broadwell-ex/17046.html . February 1, 2014 . dead .
15. Web site: Novakovic . Nebojsa . Socket 2011 to become the dominant Intel high end physical format even on Xeon EX – but different pin-outs, of course . Vr-zone.com . January 10, 2014 . January 19, 2014 . https://web.archive.org/web/20140201182139/http://vr-zone.com/articles/socket-2011-to-become-the-dominant-intel-high-end-physical-format-even-on-xeon-ex--but-different-pin-outs-of-course/16633.html . February 1, 2014 . dead .
16. Web site: Skylake Purley: Intel Xeon E5 and E7 Platform Update . May 25, 2015 . May 25, 2015 . Anton Shilov . xbitlabs.com .
17. Web site: Intel Software Development Emulator Intel Developer Zone . Software.intel.com . July 23, 2013 . October 16, 2013.
18. http://software.intel.com/sites/default/files/m/0/1/9/3/4/45207-319433-013b.pdf Intel Architecture Instruction Set Extensions Programming Reference
19. http://download.intel.com/embedded/processor/whitepaper/327831.pdf New Instructions Supporting Large Integer Arithmetic on Intel Architecture Processors
20. http://software.intel.com/sites/default/files/article/251095/release-notes-c-2013-w-en-update1.pdf Intel C++ Composer XE 2013 for Windows* Installation Guide and Release Notes
21. Web site: Intel Xeon Processor E5-2600 V4 Product Family Technical Overview Intel Software. Mulnix. David. 2016. 2019-12-13.
22. Web site: VA-API 1.3 Readies Broadwell Support, Adds VP8 Decoding . Phoronix.com . March 18, 2014 . June 10, 2015.
23. Web site: VA-API Adds Support For VP8 Video Encoding . Phoronix.com . July 19, 2014 . June 10, 2015.
24. Web site: intel-hybrid-driver/README at edead0c17e2818bc0fee0ea644f85ab81bbe6f7a · intel/intel-hybrid-driver . 2023-12-31 . GitHub . en.
25. Web site: Smith . Ryan . Intel Broadwell Architecture Preview: A Glimpse into Core M . October 27, 2018.
26. Web site: Intel Broadwell GT3 Graphics Have Dual BSD Rings . Phoronix.com . April 17, 2014.
27. Web site: Mesa 13.0 Released With Intel OpenGL 4.5, RADV Radeon Vulkan Driver. www.phoronix.com.
28. Web site: Intel Iris, Iris Pro, and HD Graphics Production Driver for Windows 7, 8.1, & 10. Intel Download Center.
29. Web site: Release notes for driver version 15.40.48.5171.
30. Web site: Intel Developer Zone. Intel.
31. Web site: Cutress. Ian. Broadwell GPU Improvements. November 24, 2015.
32. Web site: Intel Broadwell-E HEDT Core i7 Processors Launching on 30th May - Official Prices and Specifications Confirmed. May 27, 2016.
33. Web site: Intel launches Broadwell-H chips for desktops and laptops, but world waits for 'Skylake' . June 2, 2015.
34. Web site: Aldi verkoopt laptop met processor van de 5de generatie. February 17, 2015. February 18, 2015.
35. Web site: 4th Generation Intel Core processor based on Mobile M-Processor and H-Processor Lines Datasheet, Volume 1 of 2 . December 2013 . December 22, 2013 . intel.com . Configurable TDP (cTDP) and Low-Power Mode (LPM) form a design vector where the processor behavior and package TDP are dynamically adjusted to a desired system performance and power envelope. [...] With cTDP, the processor is now capable of altering the maximum sustained power with an alternate guaranteed frequency. Configurable TDP allows operation in situations where extra cooling is available or situations where a cooler and quieter mode of operation is desired..
36. Web site: The technical details behind Intel's 7 Watt Ivy Bridge CPUs . January 14, 2013 . December 22, 2013 . arstechnica.com . If the CPU needs to work hard for an extended period of time and the laptop gets warmer, it will slowly ramp down its speed until it's operating at its stated TDP. [...] There are two OEM-configurable "power level" states that define how quick the CPU can be in these situations: PL2 tells the processor how much power it's allowed to use when it needs a short burst of speed, and PL1 defines how quickly the processor can run under sustained load. [...] This is at the heart of what Intel is doing with the Y-series processors: their maximum TDP has been lowered four watts, from 17 to 13. Intel is also validating them for use at two lower PL1 values: 10 watts and 7 watts. This is where the marketing we discussed earlier comes in—rather than keeping these values under the covers as it has so far been content to do, Intel has taken that lowest value, put it on its product pages, and called it SDP..
37. Web site: 4th Generation Intel Core processor based on Mobile U-Processor and Y-Processor Lines Datasheet, Volume 1 of 2 . December 2013 . December 22, 2013 . intel.com .
38. Web site: Intel's Core M Strategy: CPU Specifications for 9mm Fanless Tablets and 2-in-1 Devices. Ian Cutress. January 6, 2015.
39. Web site: Intel launches three Core M CPUs, promises more Broadwell "early 2015". Ars Technica. September 5, 2014. January 6, 2015.
40. Web site: Details of first Broadwell "Y" mobile processors . July 2014 . cpu-world.com . January 6, 2015.
41. Web site: Intel reveals 14nm PC, declares Moore's Law 'alive and well' . The Register . September 10, 2013 . September 28, 2014.
42. Web site: Intel delays Broadwell PC chip production to early next year . CNET . October 15, 2013 . September 28, 2014.
43. Web site: Intel's Broadwell-K launching at end of 2014 according to new roadmap . October 21, 2013 . October 24, 2013 . vr-zone.com . October 24, 2013 . https://web.archive.org/web/20131024063413/http://vr-zone.com/articles/intels-broadwell-k-launching-end-2014-according-new-roadmap/60966.html . dead .
44. Web site: Intel Changes Plans: Core i "Broadwell" Processors Will Be Available in LGA Packaging, But There Is a Catch . August 29, 2013 . October 24, 2013 . Anton . Shilov . Xbit Labs . dead . https://web.archive.org/web/20131025155154/http://www.xbitlabs.com/news/cpu/display/20130829163840_Intel_Changes_Plans_Core_i_Broadwell_Processors_Will_Be_Available_in_LGA_Packaging_But_There_Is_a_Catch.html . October 25, 2013 . mdy-all .
45. Web site: Exclusive: Intel CEO promises Broadwell PCs on shelves for holidays . Reuters . May 18, 2014 . May 17, 2014 . May 18, 2014 . https://web.archive.org/web/20140518214211/http://www.reuters.com/article/2014/05/18/us-intel-chips-idUSBREA4H08P20140518 . live .
46. Web site: Computex 2014: Intels Broadwell kommt rechtzeitig zum Weihnachtsgeschäft . Heise.de . May 22, 2014 . May 31, 2014.
47. Web site: Chris.L . 2014 年底前絕對見到，14nm Broadwell 處理器最快在 37 周出貨 . chinese.vr-zone.com . May 19, 2014 . July 19, 2014 . May 14, 2015 . https://web.archive.org/web/20150514063329/http://chinese.vr-zone.com/113127/intel-ceo-brian-krzanich-confirm-broadwell-on-the-way-and-bdw-y-is-the-first-will-rts-in-ww37-05192014/ . dead .
48. Web site: Crothers . Brooke . Intel's next-gen processor, Broadwell, is (mostly) a 2015 thing . CNET . July 19, 2014.
49. Web site: Mark Hachman . Intel shipping Broadwell, but next-gen Skylake chip could slip . PCWorld . July 15, 2014 . July 19, 2014.
50. Web site: Intel to launch Broadwell "U" series CPUs at CES 2015. www.cpu-world.com.
51. Web site: Intel's Extreme Broadwell-E chips reportedly not coming until early 2016. PC Gamer. October 22, 2014.
52. Web site: Hachman . Mark . Intel aims next-gen 14nm 'Broadwell' technology at fanless tablets, Ultrabooks . PCWorld . August 11, 2014 . August 15, 2014.
53. Web site: Intel regrets skipping Broadwell desktop CPUs. September 15, 2015. October 10, 2015.
54. Web site: Intel launches first Broadwell processors. www.cpu-world.com.
55. Web site: The first Core M laptop paints a depressing, mediocre picture for Intel's Broadwell - ExtremeTech. ExtremeTech.
56. Web site: Intel to release Core M 5Y10c, 5Y31, 5Y51 and 5Y71 processors. www.cpu-world.com.
57. Web site: Broadwell U arrives: Faster laptop CPUs and GPUs from Core i7 to Celeron. January 5, 2015. ArsTechnica.
58. Web site: The Intel Xeon E5 v4 Review: Testing Broadwell-EP With Demanding Server Workloads. Johan De Gelas. anandtech.com.