AMD Radeon RX 7900 GRE 16GB vs AMD Radeon PRO W7800 32GB
The Radeon RX 7900 GRE and the Radeon PRO W7800 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 RX 7900 GRE 16GB
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 RX 7900 GRE on RDNA 3 and the Radeon PRO W7800 on RDNA 3.
Dense throughput for the Radeon RX 7900 GRE against the Radeon PRO W7800: FP32 46 vs 45 TFLOPS, FP16 92 vs 90 TFLOPS. Sparse figures, where the vendor publishes them, appear under each dense number in the performance table.
Memory is 16 GB against 32 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 RX 7900 GRE and 260 W for the Radeon PRO W7800. At FP32 that works out to 0.18 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 RX 7900 GRE faster than the Radeon PRO W7800?
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 RX 7900 GRE or the Radeon PRO W7800?
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 RX 7900 GRE and 576 GB/s for the Radeon PRO W7800.
How much power do the Radeon RX 7900 GRE and the Radeon PRO W7800 draw?
The Radeon RX 7900 GRE is rated at 260 W TDP and the Radeon PRO W7800 at 260 W. On FP32 throughput per watt, the Radeon RX 7900 GRE is the more efficient part.
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