Radeon RX 7000 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 that being the 7700 xt and the 7800xt.

AMD Radeon RX 7000 series
A Sapphire AMD Radeon RX 7900 XTX reference design
Release dateDecember 13, 2022 (2022-12-13)
Manufactured byTSMC
Designed byAMD
CodenameNavi 3x
ArchitectureRDNA 3
Transistors
  • 58.0B (Navi 31)
  • 28.1B (Navi 32)
  • 13.3B (Navi 33)
Fabrication processTSMC N5 (GCD)
TSMC N6 (MCD)
Cards
Mid-range
  • Radeon RX 7600S
  • Radeon RX 7600M
  • Radeon RX 7600
  • Radeon RX 7600M XT
  • Radeon RX 7700S
High-end
  • Radeon RX 7700 XT
  • Radeon RX 7800 XT
Enthusiast
  • 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
SuccessorRadeon RX 8000 series
Support status
Supported

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
Graphics Compute Die (GCD) Memory Cache Die (MCD)
Navi 31[7] Navi 32 Navi 33
Codename Plum Bonito Wheat Nas Hotpink Bonefish
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

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.

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

Model
(Code name)
Release date
& price
Architecture
& fab
Chiplets
(active)
Transistors
& die size[lower-alpha 1]
Core Fillrate[lower-alpha 2][lower-alpha 3][lower-alpha 4] Processing power[lower-alpha 2][lower-alpha 5]
(TFLOPS)
Infinity Cache Memory TBP Bus
interface
Config[lower-alpha 6][lower-alpha 7] Clock[lower-alpha 2]
(MHz)
Texture
(GT/s)
Pixel
(GP/s)
Half Single Double Size
(MB)
Bandwidth
(GB/s)
Size
(GB)
Bandwidth
(GB/s)
Bus type
& width
Clock
(MT/s)
Radeon RX 7600
(Navi 33)[13]
May 25, 2023
$269 USD
RDNA 3
TSMC N6
13.3×109
204 mm2
2048:128:64
32:64:32 CU
1720
2655
220.2
339.8
110.1
169.9
28.18
43.50
14.09
21.75
0.440
0.680
32 476.9 8 288 GDDR6
128-bit
18000 165 W PCIe 4.0
×8
Radeon RX 7700 XT
(Navi 32)[14]
Sep 6, 2023
$449 USD
RDNA 3
TSMC N5 (GCD)
TSMC N6 (MCD)
1 × GCD
3 × MCD
28.1×109
346 mm2
3456:216:96
54:108:54 CU
1900
2544
410.4
549.5
182.4
244.2
52.53
70.34
26.27
35.17
0.821
1.099
48 1995 12 432 GDDR6
192-bit
245 W PCIe 4.0
×16
Radeon RX 7800 XT
(Navi 32)[15]
Sep 6, 2023
$499 USD
1 × GCD
4 × MCD
3840:240:96
60:120:60 CU
1800
2430
432
583.2
172.8
233.2
55.30
74.65
27.64
37.32
0.864
1.166
64 2708 16 624 GDDR6
256-bit
19500 263 W
Radeon RX 7900 GRE
(Navi 31)
Jul 27, 2023
$649 USD
57.7×109
529 mm2
5120:320:192
80:160:80 CU
1270
2245
406.4
718.4
243.8
431.0
52.02
91.96
26.01
45.98
0.813
1.437
2250 576 18000 260 W
Radeon RX 7900 XT
(Navi 31)[16]
Dec 13, 2022
$899 USD
1 × GCD
5 × MCD
5376:336:192
84:168:84 CU
1500
2400
504.0
806.4
288.0
460.8
64.51
103.2
32.26
51.61
1.008
1.613
80 2900 20 800 GDDR6
320-bit
20000 315 W
Radeon RX 7900 XTX
(Navi 31)[17]
Dec 13, 2022
$999 USD
1 × GCD
6 × MCD
6144:384:192
96:192:96 CU
1900
2500
729.6
960.0
364.8
480.0
93.39
122.9
46.69
61.44
1.459
1.920
96 3500 24 960 GDDR6
384-bit
355 W
  1. Approximate die size of entire MCM package that consists of single GCD (Graphics Compute Die) and six MCDs (Memory Cache Die).
    Radeon RX 7900 XT has only five active MCDs, inactive one is for structural support and heat dissipation. Die size of GCD is 306 mm2, size of each MCD is 37.5 mm2.[12]
  2. Boost values (if available) are stated below the base value in italic.
  3. Texture fillrate is calculated as the number of Texture Mapping Units multiplied by the base (or boost) core clock speed.
  4. Pixel fillrate is calculated as the number of Render Output Units multiplied by the base (or boost) core clock speed.
  5. Precision performance is calculated from the base (or boost) core clock speed based on a FMA operation.
  6. Unified shaders : Texture mapping units : Render output units : Ray accelerators : AI accelerators and Compute units (CU)
  7. GPUs based on RDNA 3 have dual-issue stream processors so that up to two shader instructions can be executed per clock cycle under certain parallelism conditions.

Mobile

Model
(Code name)
Release
date
Architecture
& fab
Chiplets
(active)
Transistors
& die size
Core Fillrate[lower-alpha 1][lower-alpha 2][lower-alpha 3] Processing power[lower-alpha 1][lower-alpha 4]
(TFLOPS)
Infinity
Cache
Memory TDP Bus
interface
Config[lower-alpha 5] Clock[lower-alpha 1]
(MHz)
Texture
(GT/s)
Pixel
(GP/s)
Half Single Double Size
(GB)
Bandwidth
(GB/s)
Bus type
& width
Clock
(MT/s)
Radeon RX 7600S
(Navi 33)[18]
Jan 4, 2023 RDNA 3
TSMC N6
13.3×109
204 mm2
1792:112:64
28:56:28 CU
1500
2200
168.0
246.4
96.00
140.8
21.50
31.54
10.75
15.77
0.336
0.493
32 MB 8 256 GDDR6
128-bit
16000 75 W PCIe 4.0
×8
Radeon RX 7600M
(Navi 33)[19]
1500
2410
168.0
269.9
96.00
154.2
21.50
34.55
10.75
17.28
0.336
0.540
90 W
Radeon RX 7600M XT
(Navi 33)[20]
2048:128:64
32:64:32 CU
1500
2615
192.0
334.1
96.00
167.0
24.58
42.84
12.29
21.42
0.384
0.669
288 18000 120 W
Radeon RX 7700S
(Navi 33)[21]
1500
2500
192.0
320.0
96.00
160.0
24.58
40.96
12.29
20.48
0.384
0.640
100 W
Radeon RX 7900M
(Navi 31)
Oct 19, 2023 RDNA 3
TSMC N5 (GCD)
TSMC N6 (MCD)
1 × GCD
4 × MCD
57.7×109
529 mm2
4608:288:192
72:144:72 CU

2090

601.9

401.3

77,05

38.52

1.204
64 MB 16 576 GDDR6
256-bit
180 W PCIe 4.0
×16
  1. Boost values (if available) are stated below the base value in italic.
  2. Texture fillrate is calculated as the number of Texture Mapping Units multiplied by the base (or boost) core clock speed.
  3. Pixel fillrate is calculated as the number of Render Output Units multiplied by the base (or boost) core clock speed.
  4. Precision performance is calculated from the base (or boost) core clock speed based on a FMA operation.
  5. Unified shaders : Texture mapping units : Render output units : Ray accelerators : AI accelerators and Compute units (CU), GPUs based on RDNA 3 have dual-issue stream processors so that up to two shader instructions can be executed per clock cycle under certain parallelism conditions.

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.[22] 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.[23] 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.[24][25]

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.[26] 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.[27] AMD issued a statement in December 2022 that it was investigating the issue.[28] 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.[29][30] 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.[31] 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.[32] Usually, the 7900 XTX performs 30–60% better than a 6900 XT.[33]

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)". AnandTech. Retrieved November 3, 2022.
  2. Nguyen, Chuong (November 3, 2022). "AMD unveils new Radeon RX 7900 XTX GPU with RDNA 3 to take on Nvidia RTX 4000". Windows Central. Retrieved November 4, 2022.
  3. Cunningham, Andrew (November 3, 2022). "AMD's next-gen Radeon RX 7900 XTX and XT launch December 13 for $999 and $899". Ars Technica. Retrieved November 4, 2022.
  4. Vasishta, Aaryaman (January 10, 2023). "How to accelerate AI applications on RDNA 3 using WMMA". GPUOpen.com. Archived from the original on January 10, 2023. Retrieved August 14, 2023.
  5. Walton, Jarred (November 14, 2022). "AMD RDNA 3 GPU Architecture Deep Dive: The Ryzen Moment for GPUs". Tom's Hardware. Retrieved November 18, 2022.
  6. Archer, James (November 4, 2022). "AMD announced the first Radeon RX 7000 GPUs at RTX 4080-beating prices". RockPaperShotgun. Retrieved November 7, 2022.
  7. Walton, Jarred (November 14, 2022). "AMD RDNA 3 GPU Architecture Deep Dive: The Ryzen Moment for GPUs". Tom's Hardware. Retrieved April 3, 2023.
  8. "AMD announces Radeon RX 7900XTX and 7900XT with Navi 31 "RDNA3" GPU". VideoCardz. November 3, 2022. Retrieved November 8, 2022.
  9. Campbell, Mark (November 4, 2022). "AMD's RX 7900 XTX is reportedly designed to "scale to up to 3GHz"". Overclock3D. Retrieved November 8, 2022.
  10. "AMD Navi 33". TechPowerUp. Retrieved January 16, 2023.
  11. Discuss, btarunr (June 10, 2021). "AMD Navi 23 Silicon Detailed, Higher Transistor Count than RX 5700 XT". TechPowerUp. Retrieved August 24, 2023.
  12. "AMD Unveils World's Most Advanced Gaming Graphics Cards, Built on Groundbreaking AMD RDNA 3 Architecture with Chiplet Design". AMD (Press release). April 21, 2023.
  13. "AMD Radeon RX 7600 Specs". TechPowerUp. Retrieved May 24, 2023.
  14. "AMD Radeon RX 7700 XT Specs". TechPowerUp. August 25, 2023. Retrieved August 25, 2023.
  15. "AMD Radeon RX 7800 XT Specs". TechPowerUp. August 25, 2023. Retrieved August 25, 2023.
  16. "AMD Radeon RX 7900 XT Specs". TechPowerUp. Retrieved November 4, 2022.
  17. "AMD Radeon RX 7900 XTX Specs". TechPowerUp. Retrieved November 4, 2022.
  18. "AMD Radeon RX 7600S Specs". TechPowerUp. Retrieved January 16, 2023.
  19. "AMD Radeon RX 7600M Specs". TechPowerUp. Retrieved January 16, 2023.
  20. "AMD Radeon RX 7600M XT Specs". TechPowerUp. Retrieved April 20, 2023.
  21. "AMD Radeon RX 7700S Specs". TechPowerUp. Retrieved January 16, 2023.
  22. Timm, Jan-Frederik (December 22, 2022). "Treiber für Radeon RX 7900 XT(X): Adrenalin Edition 22.12.2 soll den Stromverbrauch senken". ComputerBase (in German). Retrieved December 23, 2022.
  23. Campbell, Mark (December 13, 2022). "Radeon acknowledges high RX 7900XT/X idle power with their AMD Software 22.12.1 drivers". Overclock3D. Retrieved December 23, 2022.
  24. Tyson, Mark (December 22, 2022). "AMD Adrenalin Edition 22.12.2 Driver Slashes RX 7900 XT(X) Power Consumption". Tom's Hardware. Retrieved December 23, 2022.
  25. Cunningham, Andrew (December 22, 2022). "Driver updates will fix abnormally high power use for AMD's new RX 7900 GPUs". Ars Technica. Retrieved December 23, 2022.
  26. Tyson, Mark (December 21, 2022). "AMD Looking Into RX 7900 Series Temperature Issues". Tom's Hardware. Retrieved December 23, 2022.
  27. Schilling, Andreas (December 21, 2022). "Nutzer melden Temperaturprobleme der Radeon RX 7900 XT(X) (Update)". HardwareLuxx (in German). Retrieved December 23, 2022.
  28. Norem, Josh (December 22, 2022). "AMD Investigating Overheating Radeon 7900 Reference Boards". ExtremeTech. Retrieved December 23, 2022.
  29. "AMD confirms a small batch of Radeon RX 7900 XTX has vapor chamber issues, company offers replacements". VideoCardz. January 6, 2023. Retrieved January 8, 2023.
  30. "PowerColor Radeon RX 7900 XTX RedDevil im Test". PCMasters (in German). Retrieved August 24, 2023.
  31. PCWorld (January 6, 2023). "Scott Herkelman Addresses RX 7900 XTX Cooler & Performance". YouTube. Retrieved January 13, 2023.
  32. der8auer EN (January 8, 2023). "AMDs questionable Statement regarding the 7900XTX Hotspot Drama". YouTube. Retrieved January 13, 2023.
  33. "Launch-Analyse AMD Radeon RX 7900 XT & XTX (Seite 4)". 3DCenter (in German). December 20, 2022. Retrieved January 13, 2023.
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