CMP 40HX vs RTX 4070 for Blender
Compare CMP 40HX 8 GB and RTX 4070 for Blender Cycles. See benchmark performance, VRAM, power ratings and checked prices side by side. RTX 4070 leads the Blender benchmark score by 337.9%.
Fastest in Cycles
RTX 4070
338% faster than CMP 40HX 8 GB
Most VRAM
RTX 4070
50% more VRAM than CMP 40HX 8 GB
Lowest power draw
CMP 40HX 8 GB
8% lower rating than RTX 4070
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 4070 |
|---|---|---|
| Lowest price | Price unavailable No current offer matches your preferences. | $829.00 Checked Oct 9, 2026 |
| Value for money | N/A | 6.18 |
| Blender benchmark score | 1,170.87 | 5,126.67 +338% |
| VRAM | 8 GB Meets Blender’s recommended VRAM | 12 GB Meets Blender’s recommended VRAM+50% |
| System PSU | 450 W Secondary source suggestion | N/A |
| Render support | CUDA, OpenCL | OptiX, CUDA |
| Performance | ||
| CUDA cores | 2,304 | 5,888 +156% |
| Boost clock | 1650 MHz | 2475 MHz +50% |
| RT cores | 36 | 46 +28% |
| Tensor cores | 288 +57% | 184 |
| Memory | ||
| Memory bandwidth | 448 GB/s | 504.2 GB/s +13% |
| Memory type | GDDR6 | GDDR6X |
| Memory bus | 256-bit +33% | 192-bit |
| Platform | ||
| Architecture | Turing | Ada Lovelace |
| TDP | 185 W −8% | 200 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 4070
Blender 5.2.0 · OptiX · 30 runs
Junkshop
Monster
Classroom
Which GPU should you choose for Blender?
RTX 4070 is the stronger Blender rendering pick here based on benchmark score.
Cycles rendering performance
RTX 4070 leads by 337.9% in the Renderjuice Blender benchmark model (5,127 vs 1,171). For render-time-first decisions, that is the card to prioritize.
VRAM and scene capacity
RTX 4070 has more scene headroom with 12 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 200 W for RTX 4070. If render speed is close, that can make CMP 40HX 8 GB easier to cool and run quietly.
Is the upgrade worthwhile?
RTX 4070 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 4070 leads the Blender benchmark score by 337.9%.
Fastest in Cycles: RTX 4070 338% faster than CMP 40HX 8 GB.
Most VRAM: RTX 4070 50% more VRAM than CMP 40HX 8 GB.
Lowest power draw: CMP 40HX 8 GB 8% lower rating than RTX 4070.
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 4070 has 12 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.