AMD’s China-Only Radeon RX 7900 GRE 16GB Debuts: Navi 31 with Cut-Down Memory
AMD’s partners have started rolling out the company’s Radeon RX 7900 GRE graphics card, which will be available exclusively in China and will be a cheaper alternative to the Radeon RX 7900 XT. @wxnod has just released a picture of Sapphire’s Radeon RX 7900 GRE, scrub wiki Some pretty surprising specs have been revealed.
After all, the China-exclusive Radeon RX 7900 GRE is based on a Navi 31 GPU with 5376 stream processors enabled and running between 1.50 GHz and 2.40 GHz, which is the same configuration as the Radeon RX 7900 XT. However, there is one important difference. The Radeon RX 7900 GRE has 16 GB of GDDR6 memory along with a 256-bit memory interface to disable another memory controller die (MCD).
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As a result, AMD’s Radeon RX 7900 GRE is able to do the same horsepower calculations as the same 32 FP32 TFLOPS – 51.6 FP32 TFLOPS (base-boost) Radeon RX 7900 XT, but with only 64MB of Infinity Cache (BandWidth reduced by 2.56 GB/S).
We don’t yet know how AMD’s Radeon RX 7900 GRE will perform in real-world applications, but it’s logical to assume that its performance will be similar to the Radeon RX 7900 XT when compute power is critical, and noticeably lower when memory bandwidth is needed. In general, the Radeon RX 7900 GRE should significantly underperform the Radeon RX 7900 XT when high resolutions and advanced anti-aliasing algorithms are enabled.
| graphics card | RX7900XTX | RX7900XT | RX7900GRE |
|---|---|---|---|
| architecture | Navi 31 | Navi 31 | Navi 31 |
| CU/SM | 96 | 84 | 84 |
| GPU shader | 6144 | 5376 | 5376 |
| Ray tracing unit | 96 | 84 | 84 |
| Boost clock (MHz) | 2500 | 2400 | 2400 |
| VRAM Speed (Gbps) | 20 | 20 | 20 |
| VRAM (GB) | twenty four | 20 | 20 |
| VRAM bus width | 384 | 320 | 256 |
| L2 cache | 96 | 80 | 64 |
| ROP | 192 | 192 | 192 |
| TMU | 384 | 336 | 336 (?) |
| TFLOPS FP32 | 61.4 | 51.6 | 51.6 |
| TFLOPS FP16 (FP8/INT8) | 123 (123) | 103 (103) | 103 (103) |
| Bandwidth (GBps) | 960 | 800 | 640 |
| TBP (Watts) | 355 | 315 | about 300 |
| release date | December 22nd | December 22nd | July 23rd |
| Release price | $999 | $899 | ? |
As for Sapphire’s Nitro+ Radeon RX 7900 GRE, the graphics board features two 8-pin auxiliary PCIe power connectors and has a Thermal Graphics Power (TGP) rating of around 300W. To keep the Navi 31 GRE GPU cool, which gets pretty hot, Sapphire uses a fairly large 2.5 wide triple fan cooling system. This is considerably thinner than what the company uses. Nitro+ Radeon RX 7900 XT.
Perhaps the most interesting part about AMD’s Radeon RX 7900 GRE is its price. It should be cheap compared to the Radeon RX 7900 XT, of course, but for now we can only wonder how cheap it is.
