CMP 40HX vs PRO W6400 for Blender
Compare CMP 40HX 8 GB and PRO W6400 4 GB for Blender Cycles. See benchmark performance, VRAM, power ratings and checked prices side by side. CMP 40HX 8 GB leads the Blender benchmark score by 297.2%.
Fastest in Cycles
CMP 40HX 8 GB
297% faster than PRO W6400 4 GB
Most VRAM
CMP 40HX 8 GB
100% more VRAM than PRO W6400 4 GB
Lowest power draw
PRO W6400 4 GB
73% lower rating than CMP 40HX 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 | CMP 40HX 8 GB | PRO W6400 4 GB |
|---|---|---|
| Lowest price | Price unavailable No current offer matches your preferences. | $248.99 Checked Oct 9, 2026 |
| Value for money | N/A | 1.18 |
| Blender benchmark score | 1,170.87 +297% | 294.81 |
| VRAM | 8 GB Meets Blender’s recommended VRAM+100% | 4 GB Below Blender’s recommended VRAM |
| System PSU | 450 W Secondary source suggestion | 250 W Secondary source suggestion−44% |
| Render support | CUDA, OpenCL | OpenCL |
| Performance | ||
| CUDA cores | 2,304 | N/A |
| Boost clock | 1650 MHz | 2321 MHz +41% |
| RT cores | 36 +200% | 12 |
| Tensor cores | 288 | N/A |
| Memory | ||
| Memory bandwidth | 448 GB/s +250% | 128 GB/s |
| Memory type | GDDR6 | GDDR6 |
| Memory bus | 256-bit +300% | 64-bit |
| Platform | ||
| Architecture | Turing | RDNA 2.0 |
| TDP | 185 W | 50 W −73% |
| Release year | 2021 | 2022 |
Blender Cycles benchmarks
Estimated seconds / frame Lower is faster
CMP 40HX 8 GB
Blender 4.4.0 · OptiX · 5 runs
PRO W6400 4 GB
Blender 4.1.0 · HIP · 6 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
CMP 40HX 8 GB leads by 297.2% in the Renderjuice Blender benchmark model (1,171 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 185 W for CMP 40HX 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
CMP 40HX 8 GB leads the Blender benchmark score by 297.2%.
Fastest in Cycles: CMP 40HX 8 GB 297% faster than PRO W6400 4 GB.
Most VRAM: CMP 40HX 8 GB 100% more VRAM than PRO W6400 4 GB.
Lowest power draw: PRO W6400 4 GB 73% lower rating than CMP 40HX 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.