AMD Radeon RX 6600 8GB vs AMD Radeon PRO W6800 32GB
The Radeon PRO W6800 delivers 100% more FP16 throughput than the Radeon RX 6600 (36 vs 18 TFLOPS dense). The Radeon PRO W6800 also carries 24 GB more memory (32 GB vs 8 GB).
AMD Radeon RX 6600 8GB
Full specs →AMD Radeon PRO W6800 32GB
Full specs →Specifications
Performance (TFLOPS)
FLOPS by Precision
What actually differs
Both GPUs launched in 2021: the Radeon RX 6600 on RDNA 2 and the Radeon PRO W6800 on RDNA 2.
Dense throughput for the Radeon RX 6600 against the Radeon PRO W6800: FP32 8.9 vs 18 TFLOPS, FP16 18 vs 36 TFLOPS. Sparse figures, where the vendor publishes them, appear under each dense number in the performance table.
Memory is 8 GB against 32 GB, fed at 224 GB/s versus 512 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 132 W for the Radeon RX 6600 and 250 W for the Radeon PRO W6800. At FP32 that works out to 0.07 against 0.07 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 6600 faster than the Radeon PRO W6800?
At FP16 precision the Radeon PRO W6800 reaches 36 TFLOPS dense against 18 TFLOPS for the Radeon RX 6600. The performance table on this page lists every published precision for both GPUs.
Which has more memory, the Radeon RX 6600 or the Radeon PRO W6800?
The Radeon PRO W6800 carries 32 GB of VRAM versus 8 GB for the Radeon RX 6600. Memory bandwidth is 224 GB/s for the Radeon RX 6600 and 512 GB/s for the Radeon PRO W6800.
How much power do the Radeon RX 6600 and the Radeon PRO W6800 draw?
The Radeon RX 6600 is rated at 132 W TDP and the Radeon PRO W6800 at 250 W. On FP32 throughput per watt, the Radeon PRO W6800 is the more efficient part.
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