CMP 40HX vs RX 6850M XT for Blender
Compare CMP 40HX 8 GB and RX 6850M XT 12 GB for Blender Cycles. See benchmark performance, VRAM, power ratings and checked prices side by side. RX 6850M XT 12 GB leads the Blender benchmark score by 22.9%.
Fastest in Cycles
RX 6850M XT 12 GB
23% faster than CMP 40HX 8 GB
Most VRAM
RX 6850M XT 12 GB
50% more VRAM than CMP 40HX 8 GB
Lowest power draw
RX 6850M XT 12 GB
11% 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 | RX 6850M XT 12 GB |
|---|---|---|
| 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 | 1,438.44 +23% |
| 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 | OpenCL |
| Performance | ||
| CUDA cores | 2,304 | N/A |
| Boost clock | 1650 MHz | 2581 MHz +56% |
| RT cores | 36 | 40 +11% |
| Tensor cores | 288 | N/A |
| Memory | ||
| Memory bandwidth | 448 GB/s +4% | 432 GB/s |
| Memory type | GDDR6 | GDDR6 |
| Memory bus | 256-bit +33% | 192-bit |
| Platform | ||
| Architecture | Turing | RDNA 2.0 |
| TDP | 185 W | 165 W −11% |
| Release year | 2021 | 2022 |
Blender Cycles benchmarks
Estimated seconds / frame Lower is faster
CMP 40HX 8 GB
Blender 4.4.0 · OptiX · 5 runs
RX 6850M XT 12 GB
Blender 3.4.0 · HIP · 5 runs
Junkshop
Monster
Classroom
Which GPU should you choose for Blender?
RX 6850M XT 12 GB is the stronger Blender rendering pick here based on benchmark score.
Cycles rendering performance
RX 6850M XT 12 GB leads by 22.9% in the Renderjuice Blender benchmark model (1,438 vs 1,171). For render-time-first decisions, that is the card to prioritize.
VRAM and scene capacity
RX 6850M XT 12 GB 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
RX 6850M XT 12 GB is the lower-power option at 165 W TDP, compared with 185 W for CMP 40HX 8 GB. If render speed is close, that can make RX 6850M XT 12 GB easier to cool and run quietly.
Is the upgrade worthwhile?
RX 6850M XT 12 GB 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
RX 6850M XT 12 GB leads the Blender benchmark score by 22.9%.
Fastest in Cycles: RX 6850M XT 12 GB 23% faster than CMP 40HX 8 GB.
Most VRAM: RX 6850M XT 12 GB 50% more VRAM than CMP 40HX 8 GB.
Lowest power draw: RX 6850M XT 12 GB 11% 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.
CMP 40HX 8 GB has 8 GB of VRAM, while RX 6850M XT 12 GB 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.