Radeon RX 7000 series explained

AMD Radeon RX 7000 series
Img W:220
Manufacturer:TSMC
Designfirm:AMD
Marketed By:AMD
Codename:Navi 3x
Architecture:RDNA 3
Numcores:28-96 Compute Units (CUs)
Fab:TSMC N5
TSMC N6 (Navi 33 and)
Transistors1:57.7B (Navi 31 GCD)
Transistors2:28.1B (Navi 32 GCD)
Transistors3:13.3B (Navi 33)
Transistors4:2.05B (MCD)
Openclversion:OpenCL 2.1
Openglversion:OpenGL 4.6
Vulkanapi:Vulkan 1.3
Predecessor:Radeon RX 6000 series
Successor:Radeon RX 8000 series
Support Status:Supported
Variant:Radeon Pro W7000 series

The Radeon RX 7000 series is a series of graphics processing units developed by AMD, based on their RDNA 3 architecture. It was announced on November 3, 2022[1] and is the successor to the Radeon RX 6000 series. The first two graphics cards of the family (RX 7900 XT and RX 7900 XTX) were released on Dec 13, 2022.

Currently AMD has announced and released seven desktop graphics cards of the Radeon RX 7000 series: the entry level RX 7600 and RX 7600 XT; the mainstream RX 7700 XT and RX 7800 XT; and the enthusiast RX 7900 GRE, RX 7900 XT and RX 7900XTX.[2] Five laptop chips have also been released in two series; the power efficiency targeting S series, consisting of the RX 7600S and RX 7700S; and the M series, consisting of the RX 7600M, RX 7600M XT and the RX 7900M.[3]

Features

Navi 3x dies

Graphics Compute Die (GCD)Memory CacheDie (MCD)
Navi 31[8] Navi 32Navi 33
Plum BonitoWheat NasHotpink Bonefish—
96
(6144)
[12288]		60
(3840)
[7680]		32
(2048)
[4096]
45.7B28.1B13.3B2.05B
152.3 MTr/mm2140.5 MTr/mm265.2 MTr/mm255.4 MTr/mm2
300 mm2200 mm2204 mm237 mm2

Navi 31

The Navi 31 multi-chip module features 58 billion transistors, a 165% increase in transistor density than the previous generation Navi 2x, across seven dies: one Graphics Compute Die (GCD) and six Memory Cache Dies (MCD). The full Navi 31 die contains 12,288 FP32 cores, equivalent to 6144 stream processors.[9] Reportedly, the Navi 31 die has been designed to scale up to 3.0 GHz frequency, though AMD's Radeon RX 7900 XTX reference design can hit a boost frequency of 2.5 GHz.[10] The Navi 31 die is fabricated on TSMC's N5 process node.

Navi 33

The Navi 33 die features 13.3 billion transistors and a die size of 204 mm2. The full die features 4096 FP32 cores, segmented into 32 Compute Units.[11] Unlike the higher-end Navi 31 die, it is a monolithic design fabricated on TSMC's N6 process node.

Products

Workstation

See main article: article.

Issues

Idle power usage

Abnormally high power draw while at idle was observed with the Radeon RX 7900 XT and RX 7900 XTX when using select high resolution, high refresh rate displays and when the GPU is decoding video. ComputerBase discovered that the RX 7900 XT and RX 7900 XTX drew a respective 71W and 80W when decoding and playing a 4K 60FPS YouTube video compared to the 30W used by the RX 6900 XT for the same task.[12] AMD acknowledged the issue and it was added to the list of known issues to be addressed with future updates to drivers and Radeon Adrenalin software.[13] On December 22, 2022, Adrenalin Edition 22.12.2 was released and its RDNA 3-exclusive driver significantly reduced the GPU's power usage at idle and when decoding video.[14] [15]

Reference card temperature issues

AMD's reference editions of the Radeon RX 7900 XT and RX 7900 XTX have suffered from high temperatures of up to 109°C on the GPU hot spot. AIB partner cards were confirmed to not be affected by this issue. The loud fans and thermal throttling on reference cards could have been as a result of poor contact between the reference cooler and the GPU chiplets.[16] HardwareLuxx instead considered that the direct die cooling used for the Navi 31 chiplets could be difficult due to uneven contact pressure across the seven dies even if they may look to be level.[17] AMD issued a statement in December 2022 that it was investigating the issue.[18] AMD said that the noisy fans and thermal throttling on reference cards were due to a manufacturing defect where there was an insufficient amount of water in vapor chambers.[19] [20] Affected cards would be replaced by AMD upon request.

On January 6, 2023, Scott Herkelman, Senior Vice President & General Manager Graphics at AMD, said in an interview with PCWorld that "you would see a small performance delta" if the GPU throttles at 110 °C during certain workloads.[21] Some media outlets disagreed with statements made by Herkelman, such as how he said there was "a small performance delta" when 3 out of 4 affected RX 7900 XTX performed worse than a previous generation 6900 XT in the same test.[22] Usually, the RX 7900 XTX performs approximately 30–60% better than a 6900 XT.[23]

See also

External links

Notes and References

  1. Web site: Smith . Ryan . Bonshor . Gavin . November 3, 2022 . AMD RDNA 3 GPU Unveil "together we advance_gaming" Live Blog (1pm PT/20:00 UTC) . AnandTech . en-US . November 3, 2022.
  2. https://www.amd.com/en/products/graphics/desktops/radeon.html
  3. https://www.amd.com/en/products/graphics/laptops/radeon.html
  4. Web site: How to accelerate AI applications on RDNA 3 using WMMA. Aaryaman. Vasishta. January 10, 2023. GPUOpen.com. 2023-08-14. https://web.archive.org/web/20230110194947/https://gpuopen.com/learn/wmma_on_rdna3/. live. 2023-01-10.
  5. Web site: Walton . Jarred . AMD RDNA 3 and Radeon RX 7000-series GPUs: Everything we know . Tom's Hardware . 20 July 2024 . 15 June 2024.
  6. Web site: Walton . Jarred . November 14, 2022 . AMD RDNA 3 GPU Architecture Deep Dive: The Ryzen Moment for GPUs . Tom's Hardware . en-US . November 18, 2022.
  7. Web site: Archer . James . November 4, 2022 . AMD announced the first Radeon RX 7000 GPUs at RTX 4080-beating prices . RockPaperShotgun . en-US . November 7, 2022.
  8. Web site: Walton . Jarred . November 14, 2022 . AMD RDNA 3 GPU Architecture Deep Dive: The Ryzen Moment for GPUs . Tom's Hardware . en-US . April 3, 2023.
  9. Web site: AMD announces Radeon RX 7900XTX and 7900XT with Navi 31 "RDNA3" GPU . VideoCardz . en-US . November 3, 2022 . November 8, 2022.
  10. Web site: Campbell . Mark . November 4, 2022 . AMD's RX 7900 XTX is reportedly designed to "scale to up to 3GHz" . Overclock3D . en-US . November 8, 2022.
  11. Web site: AMD Navi 33 . TechPowerUp . en-US . 16 January 2023.
  12. Web site: Timm . Jan-Frederik . December 22, 2022 . Treiber für Radeon RX 7900 XT(X): Adrenalin Edition 22.12.2 soll den Stromverbrauch senken . ComputerBase . de . December 23, 2022.
  13. Web site: Campbell . Mark . December 13, 2022 . Radeon acknowledges high RX 7900XT/X idle power with their AMD Software 22.12.1 drivers . Overclock3D . en-GB . December 23, 2022.
  14. Web site: Tyson . Mark . December 22, 2022 . AMD Adrenalin Edition 22.12.2 Driver Slashes RX 7900 XT(X) Power Consumption . Tom's Hardware . en-US . December 23, 2022.
  15. Web site: Cunningham . Andrew . December 22, 2022 . Driver updates will fix abnormally high power use for AMD's new RX 7900 GPUs . Ars Technica . en-US . December 23, 2022.
  16. Web site: Tyson . Mark . December 21, 2022 . AMD Looking Into RX 7900 Series Temperature Issues . Tom's Hardware . en-US . December 23, 2022.
  17. Web site: Schilling . Andreas . December 21, 2022 . Nutzer melden Temperaturprobleme der Radeon RX 7900 XT(X) (Update) . HardwareLuxx . de . December 23, 2022.
  18. Web site: Norem . Josh . December 22, 2022 . AMD Investigating Overheating Radeon 7900 Reference Boards . ExtremeTech . en-US . December 23, 2022.
  19. Web site: AMD confirms a small batch of Radeon RX 7900 XTX has vapor chamber issues, company offers replacements . VideoCardz . en-US . January 6, 2023 . January 8, 2023.
  20. Web site: PowerColor Radeon RX 7900 XTX RedDevil im Test . 2023-08-24 . PCMasters . de.
  21. Web site: PCWorld . January 6, 2023 . Scott Herkelman Addresses RX 7900 XTX Cooler & Performance . YouTube . en-US . January 13, 2023.
  22. Web site: der8auer EN . January 8, 2023 . AMDs questionable Statement regarding the 7900XTX Hotspot Drama . YouTube . en . January 13, 2023.
  23. Web site: Launch-Analyse AMD Radeon RX 7900 XT & XTX (Seite 4) . 3DCenter . de . December 20, 2022 . January 13, 2023.

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