Radeon RX 7000 series

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Short description: Series of video cards by AMD
AMD Radeon RX 7000 series
AMD Radeon RX 7000 Series Logo.pngSapphire AMD radeon rx 7900 xtx.JPG
An AMD Radeon RX 7900 XTX (here from Sapphire), the series' flagship model
Release dateDecember 13, 2022
(14 months ago) (2022-12-13)
CodenameNavi 3x
ArchitectureRDNA 3
Transistors
  • 57.7B (Navi 31)
  • 28.1B (Navi 32)
  • 13.3B (Navi 33)
Fabrication processTSMC N5 (GCD)
TSMC N6 (MCD)
Cards
Entry-level
  • Radeon RX 7600S
  • Radeon RX 7600M
Mid-range
  • Radeon RX 7600M XT
  • Radeon RX 7600
  • Radeon RX 7600 XT
  • Radeon RX 7700S
High-end
  • Radeon RX 7700 XT
  • Radeon RX 7800 XT
  • Radeon RX 7900M
Enthusiast
  • Radeon RX 7900 GRE
  • Radeon RX 7900 XT
  • Radeon RX 7900 XTX
API support
Direct3D
OpenCLOpenCL 2.1
OpenGLOpenGL 4.6
VulkanVulkan 1.3
History
PredecessorRadeon RX 6000 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. Currently AMD has announced five graphics cards of the 7000 series: RX 7600, RX 7700 XT, RX 7800 XT, RX 7900 XT and RX 7900 XTX.[2] AMD officially launched the RX 7900 XT and RX 7900 XTX on December 13, 2022.[3] AMD released the RX 7600 on May 25, 2023. AMD released their last two graphics processing units of the RDNA 3 family on September 6, 2023; the 7700 XT and the 7800 XT.

It is the first generation of Radeon GPUs to include dedicated AI accelerators, a feature AMD had previously only offered in its Instinct GPUs aimed at data centers.

Radeon RX 7000 series features

  • RDNA 3 microarchitecture
    • Up to 96 Compute Units (CU) compared to the maximum of 80 in the RX 6000 series
    • New dual-issue shader ALUs in each CU with the ability to execute two instructions per cycle
    • Second-generation Ray tracing accelerators
    • Dedicated AI accelerators with Wave MMA (matrix multiply-accumulate) instructions[4]
  • First consumer graphics card to be based on a chiplet design
    • TSMC N5 for Graphics Compute Die (GCD)
    • TSMC N6 for Memory Cache Die (MCD)
  • Up to 24 GB of GDDR6 memory
  • Doubled L1 cache from 128 KB to 256 KB per array
  • 50% increased L2 cache from 4 MB to 6 MB maximum[5]
  • Second-generation Infinity Cache with up to 2.7x peak bandwidth and up to 96 MB in capacity
  • PCIe 4.0 x16 interface
  • Support for AV1 hardware encoding and decoding for 12-bit video up to 8K60[6]
  • New "Radiance Display" Engine with:
    • DisplayPort 2.1 UHBR 13.5 support (up to 54 Gbit/s bandwidth)
    • HDMI 2.1a support (up to 48 Gbit/s bandwidth)
    • Support up to 8K 165 Hz or 4K 480 Hz output with DSC
    • 12-bit color and Rec. 2020 support for HDR

Navi 3x dies

Graphics Compute Die (GCD) Memory Cache Die (MCD)
Navi 31[7] Navi 32 Navi 33
Codename Plum Bonito Wheat Nas Hotpink Bonefish N/A
Compute units
(Stream processors)
[FP32 cores] 		96
(6144)
[12288] 		60
(3840)
[7680] 		32
(2048)
[4096]
Transistors 45.7B 28.1B 13.3B 2.05B
Transistor density 152.3 MTr/mm2 140.5 MTr/mm2 65.2 MTr/mm2 55.4 MTr/mm2
Die size 300 mm2 200 mm2 204 mm2 37 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 contained 12,288 FP32 cores, equivalent to 6144 Stream Processors.[8] 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.[9] 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.[10] Unlike the higher-end Navi 31 die, it is a monolithic design fabricated on TSMC's N6 process node. One of the standout features of the Navi 33 die is its staggering 13.3 billion transistors. Transistors are fundamental in determining the computational power of a chip, and with such a high count, it indicates the capability of the die to handle intricate processing tasks. Furthermore, the die size of 204 mm2 ensures that this vast number of transistors is efficiently packed, providing a balance between power and size.[11]

Products

Desktop

Mobile

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 reportedly not affected. The noisy fans and thermal throttling on reference cards could be 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 saying that there was "a small performance delta" when 3 out of 4 affected 7900 XTX performed worse than a previous generation 6900 XT in the same test.[22] Usually, the 7900 XTX performs 30–60% better than a 6900 XT.[23]

See also

References

  1. ↑ Smith, Ryan; Bonshor, Gavin (November 3, 2022). "AMD RDNA 3 GPU Unveil "together we advance_gaming" Live Blog (1pm PT/20:00 UTC)" (in en-US). https://www.anandtech.com/show/17635/amd-rdna-3-gpu-unveil-live-blog-1pm-pt-2000-utc. 
  2. ↑ Nguyen, Chuong (November 3, 2022). "AMD unveils new Radeon RX 7900 XTX GPU with RDNA 3 to take on Nvidia RTX 4000" (in en-US). https://www.windowscentral.com/hardware/computers-desktops/amd-unveils-new-radeon-rx-7000-gpu-with-rdna-3-to-take-on-nvidia-rtx-4000. 
  3. ↑ Cunningham, Andrew (November 3, 2022). "AMD's next-gen Radeon RX 7900 XTX and XT launch December 13 for $999 and $899" (in en-US). https://arstechnica.com/gadgets/2022/11/amds-next-gen-radeon-rx-7900-xtx-and-7900-xt-launch-december-13-start-at-999/. 
  4. ↑ Vasishta, Aaryaman (January 10, 2023). "How to accelerate AI applications on RDNA 3 using WMMA". GPUOpen.com. https://gpuopen.com/learn/wmma_on_rdna3/. 
  5. ↑ Walton, Jarred (November 14, 2022). "AMD RDNA 3 GPU Architecture Deep Dive: The Ryzen Moment for GPUs" (in en-US). https://www.tomshardware.com/news/amd-rdna-3-gpu-architecture-deep-dive-the-ryzen-moment-for-gpus. 
  6. ↑ Archer, James (November 4, 2022). "AMD announced the first Radeon RX 7000 GPUs at RTX 4080-beating prices" (in en-US). https://www.rockpapershotgun.com/amd-radeon-rx-7000-series-price-specs-release-date. 
  7. ↑ Walton, Jarred (November 14, 2022). "AMD RDNA 3 GPU Architecture Deep Dive: The Ryzen Moment for GPUs" (in en-US). https://www.tomshardware.com/news/amd-rdna-3-gpu-architecture-deep-dive-the-ryzen-moment-for-gpus. 
  8. ↑ "AMD announces Radeon RX 7900XTX and 7900XT with Navi 31 "RDNA3" GPU" (in en-US). November 3, 2022. https://videocardz.com/newz/amd-announces-radeon-rx-7900xtx-and-7900xt-with-navi-31-rdna3-gpu. 
  9. ↑ Campbell, Mark (November 4, 2022). "AMD's RX 7900 XTX is reportedly designed to "scale to up to 3GHz"" (in en-US). https://overclock3d.net/news/gpu_displays/amd_s_rx_7900_xtx_is_reportedly_designed_to_scale_to_up_to_3ghz/1. 
  10. ↑ "AMD Navi 33" (in en-US). https://www.techpowerup.com/gpu-specs/amd-navi-33.g1001. 
  11. ↑ Discuss, btarunr (2021-06-10). "AMD Navi 23 Silicon Detailed, Higher Transistor Count than RX 5700 XT" (in en). https://www.techpowerup.com/283190/amd-navi-23-silicon-detailed-higher-transistor-count-than-rx-5700-xt. 
  12. ↑ Timm, Jan-Frederik (December 22, 2022). "Treiber für Radeon RX 7900 XT(X): Adrenalin Edition 22.12.2 soll den Stromverbrauch senken" (in de). https://www.computerbase.de/2022-12/treiber-fuer-radeon-rx-7900-xt-x-adrenalin-edition-22-12-2-soll-den-stromverbrauch-senken/. 
  13. ↑ Campbell, Mark (December 13, 2022). "Radeon acknowledges high RX 7900XT/X idle power with their AMD Software 22.12.1 drivers" (in en-GB). https://overclock3d.net/news/gpu_displays/radeon_acknowledges_high_rx_7900xt_x_idle_power_with_their_amd_software_22_12_1_drivers/1. 
  14. ↑ Tyson, Mark (December 22, 2022). "AMD Adrenalin Edition 22.12.2 Driver Slashes RX 7900 XT(X) Power Consumption" (in en-US). https://www.tomshardware.com/news/amd-adrenalin-edition-22122-driver-slashes-rx-7900-xtx-power-consumption. 
  15. ↑ Cunningham, Andrew (December 22, 2022). "Driver updates will fix abnormally high power use for AMD's new RX 7900 GPUs" (in en-US). https://arstechnica.com/gadgets/2022/12/amd-acknowledges-high-power-use-in-rx-7900-gpus-plans-driver-fixes/. 
  16. ↑ Tyson, Mark (December 21, 2022). "AMD Looking Into RX 7900 Series Temperature Issues" (in en-US). https://www.tomshardware.com/news/amd-investigating-rx-7900-reference-hot-spot-temperatures. 
  17. ↑ Schilling, Andreas (December 21, 2022). "Nutzer melden Temperaturprobleme der Radeon RX 7900 XT(X) (Update)" (in de). https://www.hardwareluxx.de/index.php/news/hardware/grafikkarten/60063-hohes-temperatur-delta-nutzer-melden-temperaturprobleme-der-radeon-rx-7900-xt-x.html. 
  18. ↑ Norem, Josh (December 22, 2022). "AMD Investigating Overheating Radeon 7900 Reference Boards" (in en-US). https://www.extremetech.com/gaming/341749-amd-investigating-overheating-radeon-7900-reference-boards. 
  19. ↑ "AMD confirms a small batch of Radeon RX 7900 XTX has vapor chamber issues, company offers replacements" (in en-US). January 6, 2023. https://videocardz.com/newz/amd-confirms-a-small-batch-of-radeon-rx-7900-xtx-has-vapor-chamber-issues-company-offers-replacements. 
  20. ↑ "PowerColor Radeon RX 7900 XTX RedDevil im Test" (in de). https://www.pcmasters.de/testbericht/133711958-powercolor-radeon-rx-7900-xtx-reddevil-test-review.html. 
  21. ↑ PCWorld (January 6, 2023). "Scott Herkelman Addresses RX 7900 XTX Cooler & Performance" (in en-US). https://www.youtube.com/watch?v=X87OzJ3bU7o. 
  22. ↑ der8auer EN (January 8, 2023). "AMDs questionable Statement regarding the 7900XTX Hotspot Drama" (in en). https://www.youtube.com/watch?v=fqVMIAtMvi0. 
  23. ↑ "Launch-Analyse AMD Radeon RX 7900 XT & XTX (Seite 4)" (in de). December 20, 2022. http://www.3dcenter.org/artikel/launch-analyse-amd-radeon-rx-7900-xt-xtx. 

External links



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