AMD Radeon Pro W7900 features 96 Compute Units (full Navi 31) combined with 48GB of GDDR6 ECC memory. This is a flagship workstation solution based on the same GPU as the Radeon RX 7900 XTX. The card will offer up to 61 TFLOPS of single precision compute performance, and it will target a max board power of 295 watts. From the looks of it, W7900 is a triple-slot blower design.
At the same time, AMD is launching its Radeon Pro W7800 GPU with 70 Compute Units, and 32GB of GDDR6 ECC ram. This card will have a peak compute performance of 45 TFLOPs, and it is designed to operate within 260W power envelope. Such configuration (4480 Stream Processors and 256-bit) is not used by any Radeon RX 7000 card yet. There is a good reason to expect similar specs from supposed gaming SKU, but of course, with less memory (16GB) and without error correction.