CMP 40HX vs RX 6650 XT for Blender
Compare CMP 40HX 8 GB and RX 6650 XT 8 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 10.0%.
Fastest in Cycles
CMP 40HX 8 GB
10% faster than RX 6650 XT 8 GB
Most VRAM
Tie
Same memory capacity
Lowest power draw
RX 6650 XT 8 GB
5% 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
| Spec | ||
|---|---|---|
| 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 |
| Performance | ||
| Blender benchmark score | 1,170.87 +10% | 1,064.8 |
| CUDA cores | 2,304 | N/A |
| Boost clock | 1650 MHz | 2635 MHz +60% |
| RT cores | 36 +13% | 32 |
| Tensor cores | 288 | N/A |
| Memory | ||
| VRAM | 8 GB Meets Blender’s recommended VRAM | 8 GB Meets Blender’s recommended VRAM |
| Memory bandwidth | 448 GB/s +60% | 280 GB/s |
| Memory type | GDDR6 | GDDR6 |
| Memory bus | 256-bit +100% | 128-bit |
| Platform | ||
| Architecture | Turing | RDNA 2.0 |
| Render support | CUDA, OpenCL | OpenCL |
| TDP | 185 W | 176 W −5% |
| System PSU | 450 W Secondary source suggestion−10% | 500 W Manufacturer requirement |
| 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 6650 XT 8 GB
Blender 4.5.0 · HIP · 24 runs
Junkshop
Monster
Classroom
Which GPU should you choose for Blender?
CMP 40HX 8 GB is the stronger Blender rendering pick here, and both cards have the same VRAM capacity.
Cycles rendering performance
CMP 40HX 8 GB leads by 10.0% in the Renderjuice Blender benchmark model (1,171 vs 1,065). For render-time-first decisions, that is the card to prioritize.
VRAM and scene capacity
Both cards have 8 GB of VRAM, so the decision is less about scene capacity and more about render speed, architecture, power draw, and price.
Power ratings and cooling
RX 6650 XT 8 GB is the lower-power option at 176 W TDP, compared with 185 W for CMP 40HX 8 GB. If render speed is close, that can make RX 6650 XT 8 GB easier to cool and run quietly.
Is the upgrade worthwhile?
RX 6650 XT 8 GB is newer, but CMP 40HX 8 GB still leads this Blender benchmark comparison. That makes the older card worth considering when used pricing or VRAM capacity is favorable.
Comparison summary
CMP 40HX 8 GB leads the Blender benchmark score by 10.0%.
Fastest in Cycles: CMP 40HX 8 GB 10% faster than RX 6650 XT 8 GB.
Most VRAM: Tie Same memory capacity.
Lowest power draw: RX 6650 XT 8 GB 5% 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.
Both GPUs ship with 8 GB of VRAM, so the tradeoff is more about speed, architecture, and efficiency than memory capacity.
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.