AMD Radeon PRO W7800 32GB vs AMD Radeon RX 7900 GRE 16GB
The Radeon PRO W7800 and the Radeon RX 7900 GRE deliver near-identical FP16 throughput (92 vs 90 TFLOPS dense). The Radeon PRO W7800 also carries 16 GB more memory (32 GB vs 16 GB).
AMD Radeon PRO W7800 32GB
Full specs →AMD Radeon RX 7900 GRE 16GB
Full specs →Specifications
Performance (TFLOPS)
FLOPS by Precision
What actually differs
Both GPUs launched in 2023: the Radeon PRO W7800 on RDNA 3 and the Radeon RX 7900 GRE on RDNA 3.
Dense throughput for the Radeon PRO W7800 against the Radeon RX 7900 GRE: FP32 45 vs 46 TFLOPS, FP16 90 vs 92 TFLOPS. Sparse figures, where the vendor publishes them, appear under each dense number in the performance table.
Memory is 32 GB against 16 GB, fed at 576 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 260 W for the Radeon PRO W7800 and 260 W for the Radeon RX 7900 GRE. At FP32 that works out to 0.17 against 0.18 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 W7800 faster than the Radeon RX 7900 GRE?
They are close on paper: both deliver about 92 TFLOPS of dense FP16 throughput. Memory, bandwidth, and power are the deciding differences.
Which has more memory, the Radeon PRO W7800 or the Radeon RX 7900 GRE?
The Radeon PRO W7800 carries 32 GB of VRAM versus 16 GB for the Radeon RX 7900 GRE. Memory bandwidth is 576 GB/s for the Radeon PRO W7800 and 576 GB/s for the Radeon RX 7900 GRE.
How much power do the Radeon PRO W7800 and the Radeon RX 7900 GRE draw?
The Radeon PRO W7800 is rated at 260 W TDP and the Radeon RX 7900 GRE at 260 W. On FP32 throughput per watt, the Radeon RX 7900 GRE is the more efficient part.
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