Radeon PRO W6600 vs Radeon PRO W6800
With 32GB on board versus 8GB for the Radeon PRO W6600, the Radeon PRO W6800 carries more headroom for large models and memory-hungry workloads. Its memory bandwidth is 129% higher (512 GB/s vs 224 GB/s), translating directly to faster inference throughput.
Maximum Capacity Reached. Remove a model to add another. (2/2)
Comparable or lower specs
Radeon PRO W6600 vs Radeon PRO W6800: In-Depth Breakdown
VRAM: Radeon PRO W6600 vs Radeon PRO W6800
With 32GB of VRAM against the Radeon PRO W6600's 8GB, the Radeon PRO W6800 has a 24GB edge. VRAM is what determines whether a model fits without quantization at all — a 70B-parameter model in FP16 needs around 140GB, and smaller models still benefit from spare capacity. That extra headroom lets the Radeon PRO W6800 load bigger models and run larger production batch sizes.
Inference Speed: Memory Bandwidth
Memory bandwidth determines how quickly data is fed to the compute units — it's the main bottleneck for autoregressive inference (token generation in LLMs). The Radeon PRO W6800 delivers 512 GB/s versus 224 GB/s on the Radeon PRO W6600, a 129% edge. For models already loaded into VRAM, token generation speed scales closely with this number: the Radeon PRO W6800 will produce tokens proportionally faster in bandwidth-bound workloads.
AI Training & Compute
FP32 throughput is the metric that matters most for training, scientific simulation, and rendering work. The Radeon PRO W6800 posts 17.8 TFLOPS versus 10.4 TFLOPS on the Radeon PRO W6600, a 71% compute lead. Expect training jobs and heavy matrix math to finish proportionally sooner on the Radeon PRO W6800.
Which should you buy: Radeon PRO W6600 or Radeon PRO W6800?
For large-model workloads bottlenecked on VRAM, the Radeon PRO W6800 is the better pick. The Radeon PRO W6600 costs less and holds up fine if your models fit inside its 8GB.
Frequently Asked Questions
Can the Radeon PRO W6600 or Radeon PRO W6800 run large language models?
Which is faster for LLM inference, the Radeon PRO W6600 or the Radeon PRO W6800?
Which is better for AI training?
Which should you buy: Radeon PRO W6600 or Radeon PRO W6800?
Technical Specifications Comparison
Architecture & Cores
| Specification | Radeon PRO W6600 | Radeon PRO W6800 |
|---|---|---|
| Architecture | RDNA 2 | RDNA 2 |
| CUDA Cores (Stream Processors / Stream Processors) | 2,048 | 3,840✓ |
Memory
| Specification | Radeon PRO W6600 | Radeon PRO W6800 |
|---|---|---|
| VRAM Capacity | 8 GB | 32 GB✓ |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 128-bit | 256-bit✓ |
| Bandwidth | 224 GB/s | 512 GB/s✓ |
Connectivity & Power
| Specification | Radeon PRO W6600 | Radeon PRO W6800 |
|---|---|---|
| Interface | PCIe 4.0 x8 | PCIe 4.0 x16 |
| TDP | 100 W✓ | 250 W |
| Released | Jun 2021 | May 2021 |
Workstation
| Specification | Radeon PRO W6600 | Radeon PRO W6800 |
|---|---|---|
| FP32 (TFLOPS) | 10.4 TFLOPS | 17.8 TFLOPS✓ |
| ECC | Yes | Yes |
| NVLink | No | No |
| Form factor | dual-slot | dual-slot |