PRO W6400 vs RX 6600M for Blender
Compare PRO W6400 4 GB and RX 6600M 8 GB for Blender Cycles. See benchmark performance, VRAM, power ratings and checked prices side by side. RX 6600M 8 GB leads the Blender benchmark score by 184.0%.
Fastest in Cycles
RX 6600M 8 GB
184% faster than PRO W6400 4 GB
Most VRAM
RX 6600M 8 GB
100% more VRAM than PRO W6400 4 GB
Lowest power draw
PRO W6400 4 GB
50% lower rating than RX 6600M 8 GB
Cheapest
Cannot compare
Price unavailable for some GPUs
Best value for money
Cannot compare
Price or benchmark unavailable for some GPUs
GPU comparison
Key specifications for Blender rendering.
| Spec | PRO W6400 4 GB | RX 6600M 8 GB |
|---|---|---|
| Lowest price | $248.99 Checked Oct 9, 2026 | Price unavailable No current offer matches your preferences. |
| Value for money | 1.18 | N/A |
| Blender benchmark score | 294.81 | 837.27 +184% |
| VRAM | 4 GB Below Blender’s recommended VRAM | 8 GB Meets Blender’s recommended VRAM+100% |
| System PSU | 250 W Secondary source suggestion | N/A |
| Performance | ||
| Boost clock | 2321 MHz | 2416 MHz +4% |
| RT cores | 12 | 28 +133% |
| Memory | ||
| Memory bandwidth | 128 GB/s | 224 GB/s +75% |
| Memory type | GDDR6 | GDDR6 |
| Memory bus | 64-bit | 128-bit +100% |
| Platform | ||
| Architecture | RDNA 2.0 | RDNA 2.0 |
| Render support | OpenCL | OpenCL |
| TDP | 50 W −50% | 100 W |
| Release year | 2022 | 2021 |
Blender Cycles benchmarks
Estimated seconds / frame Lower is faster
PRO W6400 4 GB
Blender 4.1.0 · HIP · 6 runs
RX 6600M 8 GB
Blender 4.4.0 · HIP · 7 runs
Junkshop
Monster
Classroom
Which GPU should you choose for Blender?
PRO W6400 4 GB (4 GB) meets Blender’s 2 GB VRAM minimum but is below its 8 GB recommendation. Check scene memory needs and GPU compatibility.
Cycles rendering performance
RX 6600M 8 GB leads by 184.0% in the Renderjuice Blender benchmark model (837 vs 295). PRO W6400 4 GB (4 GB) meets Blender’s 2 GB VRAM minimum but is below its 8 GB recommendation. Check scene memory needs and GPU compatibility.
VRAM and scene capacity
PRO W6400 4 GB (4 GB) meets Blender’s 2 GB VRAM minimum but is below its 8 GB recommendation. Check scene memory needs and GPU compatibility.
Power ratings and cooling
PRO W6400 4 GB is the lower-power option at 50 W TDP, compared with 100 W for RX 6600M 8 GB. If render speed is close, that can make PRO W6400 4 GB easier to cool and run quietly.
Is the upgrade worthwhile?
PRO W6400 4 GB (4 GB) meets Blender’s 2 GB VRAM minimum but is below its 8 GB recommendation. Check scene memory needs and GPU compatibility.
Comparison summary
RX 6600M 8 GB leads the Blender benchmark score by 184.0%.
Fastest in Cycles: RX 6600M 8 GB 184% faster than PRO W6400 4 GB.
Most VRAM: RX 6600M 8 GB 100% more VRAM than PRO W6400 4 GB.
Lowest power draw: PRO W6400 4 GB 50% lower rating than RX 6600M 8 GB.
Cheapest: Cannot compare Price unavailable for some GPUs.
Best value for money: Cannot compare Price or benchmark unavailable for some GPUs.
PRO W6400 4 GB (4 GB) meets Blender’s 2 GB VRAM minimum but is below its 8 GB recommendation. Check scene memory needs and GPU compatibility.
If you are deciding between these cards for Blender, focus first on Blender benchmark score, VRAM capacity, memory bandwidth, and whether your scenes are likely to benefit more from raw speed or extra memory headroom. The comparison table above keeps those tradeoffs in one place.