AMD Radeon PRO W7900 48GB vs AMD Radeon PRO W7800 32GB
The Radeon PRO W7900 delivers 36% more FP16 throughput than the Radeon PRO W7800 (123 vs 90 TFLOPS dense). The Radeon PRO W7900 also carries 16 GB more memory (48 GB vs 32 GB).
AMD Radeon PRO W7900 48GB
Full specs →AMD Radeon PRO W7800 32GB
Full specs →Specifications
Performance (TFLOPS)
FLOPS by Precision
What actually differs
Both GPUs launched in 2023: the Radeon PRO W7900 on RDNA 3 and the Radeon PRO W7800 on RDNA 3.
Dense throughput for the Radeon PRO W7900 against the Radeon PRO W7800: FP32 61 vs 45 TFLOPS, FP16 123 vs 90 TFLOPS. Sparse figures, where the vendor publishes them, appear under each dense number in the performance table.
Memory is 48 GB against 32 GB, fed at 864 GB/s versus 576 GB/s. More memory per GPU means larger models fit before you have to shard across cards, which often matters more than raw TFLOPS for inference.
Power budgets are 295 W for the Radeon PRO W7900 and 260 W for the Radeon PRO W7800. At FP32 that works out to 0.21 against 0.17 TFLOPS per watt.
For LLM training and inference, weight the FP8 and FP16 rows and memory capacity most heavily. For scientific and HPC workloads, the FP64 row is the one to read.
Frequently asked questions
Is the Radeon PRO W7900 faster than the Radeon PRO W7800?
At FP16 precision the Radeon PRO W7900 reaches 123 TFLOPS dense against 90 TFLOPS for the Radeon PRO W7800. The performance table on this page lists every published precision for both GPUs.
Which has more memory, the Radeon PRO W7900 or the Radeon PRO W7800?
The Radeon PRO W7900 carries 48 GB of VRAM versus 32 GB for the Radeon PRO W7800. Memory bandwidth is 864 GB/s for the Radeon PRO W7900 and 576 GB/s for the Radeon PRO W7800.
How much power do the Radeon PRO W7900 and the Radeon PRO W7800 draw?
The Radeon PRO W7900 is rated at 295 W TDP and the Radeon PRO W7800 at 260 W. On FP32 throughput per watt, the Radeon PRO W7900 is the more efficient part.
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