It is said that there will be more than 30,000 public versions on the shelves around the world on the day of the sale, so the rest of the GPUs are likely to be sold to AIB manufacturers, such as Sapphire, XFX, Xunxun, ASRock, etc., which have been warming up these days. It is expected that major manufacturers will bring a large number of non-public graphics cards, which are expected to start selling in mid-December.

The AMD Radeon RX 7900 XTX and Radeon RX 7900 XT graphics cards are based on the Navi 31 GPU of the RDNA 3 architecture, with a single GCD of 48 WGP, 96 computing units, 12 SA and 6 SE, and the two graphics cards will be officially launched tomorrow. The prices are 7999 CNY and 7399 CNY respectively.

From the statistical data, Nvidia’s total shipments as of mid-November are about 160,000 GPUs, including 130,000 RTX 4090 (AD102) and 30,000 RTX 4080 (AD103) chips. It is estimated that this number has now exceeded 200,000, but In any case, the supply of RTX 4080 is significantly less than that of RTX 4090, after all, RTX 4090 is more expensive.

"Here are the parameters of the RX 7900 series graphics cards:

The flagship model RX 7900 XTX has 96CU, 6144 stream processors, GPU frequency 1900-2500MHz, single-precision performance up to 61TFLOPS. The video memory is 24GB 20Gbps GDDR6, the bandwidth can reach 960GB/s, plus 96MB unlimited cache, the equivalent bandwidth can reach 3.5TB/s. The TBP of the graphics card is 355W, with power requirements starting at 800W. The RX 7900 XTX reference version has a length of 287 mm, a 2.5 slot thickness, and interfaces including DP 2.1, HDMI 2.1 and USB-C.

The sub-flagship model RX 7900 XT has 84CU, 5376 stream processors, GPU frequency of 1500-2400MHz, and single-precision performance of up to 52TFLOPS. The video memory is 20GB 20Gbps GDDR6, the bandwidth can reach 800GB/s, plus 80MB unlimited cache, the equivalent bandwidth can reach 2.9TB/s. The TBP of the graphics card is 300W, with power requirements starting at 750W. The length of the RX 7900 XT reference version is 276 mm, the thickness of the 2.5 slot, and the interface includes DP 2.1, HDMI 2.1 and USB-C."

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On that note, the AMD Navi 31 GPU is confirmed to feature an advanced chip packaging design with next-generation Infinity Cache. Based on @Kepler_L2 digging through AMD’s drivers for various patches and logs, it looks like the Navi 31 GPU will have as many as 6 MCDs (Multi-Cache Chips).

Each MCD is said to have up to 32MB of standard cache, and will also be available in 3D V-Cache form. This brings the standard cache to at least 256MB, while the variant with 3D V-Cache can reach 384MB Infinity Cache. Infinity Cache is also 32MB in size, half the size of the Zen 3 3D V-Cache part (64MB), but with six MCDs available, the chip could theoretically provide an additional 256MB of Infinity Cache via 3D package to provide an additional 256MB of Infinity Cache, but it looks like only half of the MCDs will be integrated onto them via 3D stacking. Thus, 256MB is standard plus 128MB of 3D V-Cache, for a total of 384MB of Infinity Cache.

This is a 3X increase over AMD’s RDNA 2 flagship Navi 21, which has only 128 MB of total Infinity Cache. The Infinity Cache architecture helps AMD pump more bandwidth to the GPU, which allows it to eliminate memory bottlenecks and provide fast caching close to the GPU, rather than through VRAM.

AMD Navi 31 GPU, the flagship RDNA 3 chip will power next-generation enthusiast cards such as the Radeon RX 7900 XT graphics card. We’ve heard that AMD is dropping the CU (compute unit) in favor of the WGP (workgroup processor) on its next-generation RDNA 3 GPU. Each WGP will house dual CUs (compute units), but with twice as many SIMD32 clusters, compared to the RDNA 2’s 2 clusters per CU.

According to the latest information, the AMD Navi 31 GPU with the RDNA 3 architecture is expected to offer a single graphics computing chip with 48 WGPs, 12 SAs and 6 SEs. This will provide a total of 12,288 stream processors, which is lower than the previous number. This will also reduce overall computing performance unless AMD goes crazy with clock frequencies over 3.0GHz on its flagship part. Navi 31 GPU will also carry 6 graphics compute chips that will have 32MB Infinity Cache each and may also carry a 64-bit (32-bit x 2) memory controller that will provide a 384-bit bus interface to the chips.

As for clock speeds, AMD Navi 31 GPUs are said to be capable of clock speeds of 3 GHz and beyond. rival Nvidia’s flagship GPUs also offer clock speeds close to 2.8 GHz, but AMD has had a significant advantage over Nvidia in clock speeds over the past generation, so this is all expected to continue. 3 GHz clock speeds mean we can expect the latest flagship product with FP32 performance in excess of 75 TFLOPs, which would be a 2.3x increase over the current RDNA 2 flagship, the RX 6950 XT.

Of course, this will bring higher power consumption, and AMD seems to have confirmed this with their next-generation graphics lineup, considering that the AMD Radeon RX 6950 XT already has a TBP of 335W, so in order to get a >2x performance increase, we can expect the Radeon RX 7900 XT to end up with a TBP closer to 400- 450W. As AMD itself has confirmed, these cards are expected to be launched later this year.

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