Comet Lake Explained

Comet Lake
Pcode1:	CML
Produced-Start:	(official launch date, retail availability is later)^[1]
Produced-End:	(desktop)^[2] (mobile)^[3]
Code:	80701
Numcores:	2–10
Size-From:	Intel 14nm++^[4]
L1cache:	64KB per core
L2cache:	256KB per core
L3cache:	2MB per core
Microarch:	Skylake
Arch:	x86
Instructions:	x86-64
Extensions1:	MMX, SSE, SSE2, SSE3, SSSE3, SSE4, SSE4.1, SSE4.2, AVX, AVX2, FMA3, AES-NI, CLMUL, RDRAND
Extensions2:	TXT, SGX, VT-x, VT-d
Sock1:	Desktop
Sock2:	Mobile
Predecessor:	Mobile: Amber Lake Mobile: Whiskey Lake (3rd optimization) Desktop: Coffee Lake
Successor:	Same generation: Ice Lake (10nm, new architecture) Next generation: Tiger Lake (mobile) Rocket Lake (desktop)
Clock:	5.3 GHz
Support Status:	Legacy support for iGPU
Soldby:	Intel
Designfirm:	Intel
Manuf1:	Intel
Dmi-Slowest:	8

Comet Lake is Intel's codename for its 10th generation Core processors. They are manufactured using Intel's third 14 nm Skylake process revision, succeeding the Whiskey Lake U-series mobile processor and Coffee Lake desktop processor families. Intel announced low-power mobile Comet Lake-U CPUs on August 21, 2019,^[5] H-series mobile CPUs on April 2, 2020,^[6] desktop Comet Lake-S CPUs April 30, 2020,^[7] and Xeon W-1200 series workstation CPUs on May 13, 2020.^[8] Comet Lake processors and Ice Lake 10 nm processors are together branded as the Intel "10th Generation Core" family.^[9] Intel officially launched Comet Lake-Refresh CPUs on the same day as 11th Gen Core Rocket Lake launch.^[10] The low-power mobile Comet Lake-U Core and Celeron 5205U CPUs were discontinued on July 7, 2021.^[11]

Generational changes

All Comet Lake CPUs feature an updated Platform Controller Hub with CNVio2 controller with Wi-Fi 6 and external AX201 CRF module support.^[12]

Comet Lake-S compared to Coffee Lake-S Refresh

• Up to ten CPU cores
• Hyperthreading on all models, except for Celeron
• Single core turbo boost up to 5.3 GHz (300 MHz higher); all-core turbo boost up to 4.9 GHz; Thermal Velocity Boost for Core i9;^[13] Turbo Boost Max 3.0 support for Core i7 and i9
• DDR4-2933 memory support for Core i7 and i9; DDR4-2666 for Core i3, Core i5, Pentium Gold, Celeron
• 400-series chipset based on the LGA 1200 socket

Comet Lake-H compared to Coffee Lake-H Refresh

• Higher turbo frequencies by up to 300 MHz
• DDR4-2933 memory support
• Thermal Velocity Boost for Core i7 and i9

Comet Lake-U compared to Whiskey Lake-U

• Up to six CPU cores
• Higher turbo frequencies by up to 300 MHz
• DDR4-2666 and LPDDR3-2133 memory support

One notable architectural change of Comet Lake from its predecessors is removal of TSX instruction set extensions.^{[14] [15] [16] [17]}

Entry-level CPUs like the i3 series no longer support ECC memory.^[18]

List of 10th generation Comet Lake processors

Desktop

Comet Lake-S

Pentium and Celeron CPUs lack AVX and AVX2 support.

Processor branding	Model	Cores (Threads)	CPU clock rate (GHz)					GPU		Smart cache (L3)	TDP		Memory support	Price (USD)
			Base	Turbo Boost				Model	Max clock rate (GHz)
				All-Core	2.0	3.0					Base	Down
Core i9	10900K	10 (20)	3.7	4.8	5.1	5.2	5.3	UHD 630	1.20	20MB	125W	95W	DDR4-2933 dual-channel up to 128 GB	$488
	10900KF							$472
	10910		3.6	4.7	5.0			UHD 630	1.2					OEM
	10900		2.8	4.5		5.1	5.2				65W	$438
	10900F							$422
	10900T		1.9	3.7	4.5	4.6		UHD 630	1.2		35W	25W		$438
	10850K		3.6	4.8	5.0	5.1	5.2				125W	95W		$453
Core i7	10700K	8 (16)	3.8	4.7			16MB			$374
	10700KF						$349
	10700		2.9	4.6	4.7	4.8	UHD 630	1.2	65W	$323
	10700F						$298
	10700T		2.0	3.7	4.4	4.5	UHD 630	1.2	35W	25W	$325
Core i5	10600K	6 (12)	4.1	4.5	4.8	12MB			125W	95W	DDR4-2666 dual-channelup to 128 GB	$262
	10600KF					$237
	10600		3.3	4.4	4.8	UHD 630	1.2	65W		$213
	10600T		2.4	3.7	4.0			35W	25W
	10500		3.1	4.2	4.5		1.15	65W		$192
	10500T		2.3	3.5	3.8			35W	25W
	10400		2.9	4.0	4.3		1.1	65W	$182
	10400F					$157
	10400T		2.0	3.2	3.6	UHD 630	1.1	35W	25W	$182
Core i3	10320	4 (8)	3.8	4.4	4.6		1.15	8MB	65W	$154
	10300		3.7	4.2	4.4							$143
	10300T		3.0	3.6	3.9		1.1		35W	25W
	10100		3.6	4.1	4.3			6MB	65W	$122
	10100F					$79
	10100T		3.0	3.5	3.8	UHD 630	1.1		35W	25W		$122
	G6600	2 (4)	4.2	4MB	58W			$86
	G6500		4.1	$75
	G6500T		3.5		1.05		35W	25W
	G6400		4.0	UHD 610		58W		$64
	G6400T		3.4			35W	25W
Celeron	G5925	2 (2)	3.6			58W	$52
	G5920		3.5				2MB
	G5905						4MB	$42
	G5905T		3.3		1.0	35W			25W
	G5900		3.4		1.05	2MB	58W
	G5900T		3.2		1.0		35W		25W

Comet Lake-W (Workstation)

Comet Lake-W CPUs require the W480 chipset.

Processor branding	Model	Cores (threads)	CPU clock rate (GHz)				GPU	Smart cache (L3)	TDP	Memory support	Price (USD)
			Base	Turbo Boost
				2.0	3.0
Xeon W	1290P	10 (20)	3.7	5.1	5.2	5.3	UHDP630	20MB	125W	DDR4-29332-channelup to 128 GBwith ECC	$594
	1290		3.2	5.0	5.1	5.2			80W		$546
	1290T		1.9	4.6	4.7	35W
	1270P	8 (16)	3.8	5.0	5.1			16MB	125W		$472
	1270		3.4	4.9	5.0				80W		$398
	1250P	6 (12)	4.1	4.8	12MB			125W	$342
	1250		3.3	4.7	80W			$280

Mobile

Comet Lake-H (High power)

Core i5 CPUs lack Thermal Velocity Boost.

Processor branding	Model	Cores (threads)	CPU clock speed (GHz)		GPU		Smart cache (L3)	TDP			Memory support	Price (USD)
			Base	Max.Turbo	Model	Max.freq. (GHz)
								Base	Down	Up
Xeon W	10885M	8 (16)	2.4	5.3	UHD 630	1.25	16MB	45W	35W	DDR4-29332-channel up to 128 GB	$623
	10855M	6 (12)	2.8	5.1		1.20	12MB			$450
Core i9	10980HK	8 (16)	2.4	5.3		1.25	16MB			65W	$583
	10885H								35W	$556
Core i7	10875H		2.3	5.1		1.20					$450
	10870H		2.2	5.0							$417
	10850H	6 (12)	2.7	5.1		1.15	12MB				$395
	10750H		2.6	5.0
Core i5	10500H		2.5	4.5		1.05					$250
	10400H	4 (8)	2.6	4.6		1.10	8MB
	10300H		2.5	4.5		1.05
	10200H		2.4	4.1	UHD 610

Comet Lake-U (Medium power)

The following SKUs additionally support Intel vPro and LPDDR4-2933 memory: i5-10310U, i7-10610U, i7-10810U.

Pentium and Celeron CPUs lack AVX2 support.

Processorbranding	Model	Cores(Threads)	CPU clock speed (GHz)		GPU		L3cache (MB)	TDP			Memorysupport	Price(USD)
			Base	Max.Turbo	Model	Max.freq. (GHz)
								Down	Base	Up
Core i7	10810U	6 (12)	1.1	4.9	UHD620	1.15	12	12.5	15	25	DDR4-2666LPDDR3-2133	$443
	10710U			4.7
	10610U	4 (8)	1.8	4.9			8	10				$409
	10510U
Core i5	10310U		1.7	4.4			6					$297
	10210U		1.6	4.2		1.10
Core i3	10110U	2 (4)	2.1	4.1		1.00	4					$281
Pentium	6405U		2.4	UHD610	0.95	2	12.5	DDR4-2400LPDDR3-2133		$161
Celeron	5305U	2 (2)	2.3	0.90	$107
	5205U		1.9

List of 10th generation Comet Lake Refresh processors

Desktop processors

On March 16, 2021, Intel announced the refreshed models of Comet Lake Core i3 and Pentium Gold processors. These processors have the same characteristics as their original parts, albeit with a 100MHz higher frequency and the last digit changing from zero to five.^[19]

Processor branding	Model	Cores(Threads)	CPU clock rate (GHz)			GPU		Smart cache(MB)	TDP		Memory support	Price (USD)
			Base	All-CoreTurbo	Turbo Boost 2.0	Model	Max.freq. (GHz)
									Down	Base
Core i5	10505	6 (12)	3.2	4.3	4.6	UHD630	1.2	12	N/A	65	DDR4-26662-channel up to 128 GB	$192
Core i3	10325	4 (8)	3.9	4.5	4.7		1.15	8	65	$154
	10305		3.8	4.3	4.5				$143
	10305T		3.0	3.7	4.0		1.10			25		35
	10105		3.7	4.2	4.4			6	65	$122
	10105F					$97
	10105T		3.0	3.6	3.9	UHD630	1.10		25	35		$122
PentiumGold	G6605	2 (4)	4.3	4	58			$86
	G6505		4.2	$75
	G6505T		3.6		1.05		25	35
	G6405		4.1	UHD610			58	$64
	G6405T		3.3			25	35

Notes and References

1. Web site: Smith . Ryan . August 21, 2019 . Intel Launches Comet Lake-U and Comet Lake-Y: Up To 6 Cores for Thin & Light Laptops . AnandTech . September 6, 2019.
2. Web site: Intel Announces Discontinuation of 10th Gen Lineup incl. the 10900K, 10700K, and the 10600K . Hardware Times . en-US . December 18, 2020 . February 10, 2023.
3. Web site: Shilov . Anton . December 7, 2021 . Intel to Scrap 14nm Comet Lake Mobile Processors . Tom's Hardware . en-US . February 10, 2023.
4. Web site: Intel Rocket Lake (14nm) Review: Core i9-11900K, Core i7-11700K, and Core i5-11600K .
5. Web site: Intel Expands 10th Gen Intel Core Mobile Processor Family, Offering Double Digit Performance Gains . Intel Newsroom . en-US . August 21, 2019.
6. Web site: April 2, 2020 . 10th Gen Intel Core H-series Introduces the World's Fastest Mobile Processor at 5.3 GHZ . September 17, 2022 . Intel Newsroom.
7. Web site: Intel Delivers World's Fastest Gaming Processor . Intel Newsroom . en-US . April 30, 2020.
8. Web site: New Intel vPro Platform Enables Uncompromised Productivity and Performance for the Modern Workforce . Intel Newsroom . September 17, 2022.
9. Web site: 10th Gen Core: Intel verwirrt mit 1000er- und 10000er-Prozessoren . golem.de . de-DE . January 7, 2020.
10. Web site: Cutress . Ian . March 16, 2021 . Intel Launches Rocket Lake 11th Gen Core i9, Core i7, and Core i5 . AnandTech . September 17, 2022.
11. Web site: Evenden . Ian . July 7, 2021 . Intel Retires Lakefield and 10th Gen Low Power CPUs . Tom's Hardware . September 17, 2022.
12. Web site: Intel® Wi-Fi 6 AX201 Product Specifications . Intel . en-US . September 27, 2019.
13. Web site: Thermal Velocity Boost (TVB) - Intel . WikiChip . en . May 28, 2020.
14. Web site: Intel Core i9-10900K Processor specifications . Intel . April 30, 2020 . October 10, 2020.
15. Web site: Intel Core i9-10980HK Processor specifications . Intel . April 30, 2020 . October 10, 2020.
16. Web site: Intel Core i7-10810U Processor specifications . Intel . 2020 . October 10, 2020.
17. Web site: Intel Xeon® W-1290P Processor specifications . Intel . 2020 . October 10, 2020.
18. Web site: Intel Core i3-10100 Processor specifications . Intel . 2020 . November 7, 2020.
19. Web site: Cutress. Dr Ian. Intel Launches Rocket Lake 11th Gen Core i9, Core i7, and Core i5. 2021-03-17. www.anandtech.com.