CMP 40HX vs RTX 4090 D for Blender
Compare CMP 40HX 8 GB and RTX 4090 D for Blender Cycles. See benchmark performance, VRAM, power ratings and checked prices side by side. RTX 4090 D leads the Blender benchmark score by 753.9%.
Fastest in Cycles
RTX 4090 D
754% faster than CMP 40HX 8 GB
Most VRAM
RTX 4090 D
200% more VRAM than CMP 40HX 8 GB
Lowest power draw
CMP 40HX 8 GB
56% lower rating than RTX 4090 D
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 | RTX 4090 D |
|---|---|---|
| Lowest price | Price unavailable No current offer matches your preferences. | Price unavailable No current offer matches your preferences. |
| Value for money | N/A | N/A |
| Blender benchmark score | 1,170.87 | 9,997.62 +754% |
| VRAM | 8 GB Meets Blender’s recommended VRAM | 24 GB More capacity for heavy scenes+200% |
| System PSU | 450 W Secondary source suggestion−44% | 800 W Secondary source suggestion |
| Render support | CUDA, OpenCL | OptiX, CUDA |
| Performance | ||
| CUDA cores | 2,304 | 14,592 +533% |
| Boost clock | 1650 MHz | 2520 MHz +53% |
| RT cores | 36 | 114 +217% |
| Tensor cores | 288 | 456 +58% |
| Memory | ||
| Memory bandwidth | 448 GB/s | 1,010 GB/s +125% |
| Memory type | GDDR6 | GDDR6X |
| Memory bus | 256-bit | 384-bit +50% |
| Platform | ||
| Architecture | Turing | Ada Lovelace |
| TDP | 185 W −56% | 425 W |
| Release year | 2021 | 2023 |
Blender Cycles benchmarks
Estimated seconds / frame Lower is faster
CMP 40HX 8 GB
Blender 4.4.0 · OptiX · 5 runs
RTX 4090 D
Blender 4.3.0 · OptiX · 8 runs
Junkshop
Monster
Classroom
Which GPU should you choose for Blender?
RTX 4090 D is the stronger Blender rendering pick here based on benchmark score.
Cycles rendering performance
RTX 4090 D leads by 753.9% in the Renderjuice Blender benchmark model (9,998 vs 1,171). For render-time-first decisions, that is the card to prioritize.
VRAM and scene capacity
RTX 4090 D has more scene headroom with 24 GB of VRAM versus 8 GB on CMP 40HX 8 GB. That matters most for large environments, dense geometry, high-resolution textures, and less optimized production files.
Power ratings and cooling
CMP 40HX 8 GB is the lower-power option at 185 W TDP, compared with 425 W for RTX 4090 D. If render speed is close, that can make CMP 40HX 8 GB easier to cool and run quietly.
Is the upgrade worthwhile?
RTX 4090 D is both the newer and faster Blender rendering choice here. The main reason to choose CMP 40HX 8 GB would be price, availability, existing ownership, or a specific workstation requirement.
Comparison summary
RTX 4090 D leads the Blender benchmark score by 753.9%.
Fastest in Cycles: RTX 4090 D 754% faster than CMP 40HX 8 GB.
Most VRAM: RTX 4090 D 200% more VRAM than CMP 40HX 8 GB.
Lowest power draw: CMP 40HX 8 GB 56% lower rating than RTX 4090 D.
Cheapest: Cannot compare Price unavailable for some GPUs.
Best value for money: Cannot compare Price or benchmark unavailable for some GPUs.
CMP 40HX 8 GB has 8 GB of VRAM, while RTX 4090 D has 24 GB, which matters when scenes, textures, or geometry get heavier.
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.