RTX 3070 vs RX 6900 XT for Blender
Compare RTX 3070 and RX 6900 XT 16 GB for Blender Cycles. See benchmark performance, VRAM, power ratings and checked prices side by side. RTX 3070 leads the Blender benchmark score by 3.5%.
Fastest in Cycles
RTX 3070
4% faster than RX 6900 XT 16 GB
Most VRAM
RX 6900 XT 16 GB
100% more VRAM than RTX 3070
Lowest power draw
RTX 3070
27% lower rating than RX 6900 XT 16 GB
Cheapest
RTX 3070
48% cheaper than RX 6900 XT 16 GB
Best value for money
RTX 3070
101% better value than RX 6900 XT 16 GB
| Spec | ||
|---|---|---|
| Lowest price | $459.00 Checked Oct 2, 2026 | $889.00 Checked Oct 2, 2026 |
| Value for money | 6.46 +101% | 3.22 |
| Performance | ||
| Blender benchmark score | 2,966.02 +4% | 2,864.57 |
| CUDA cores | 5,888 | N/A |
| Boost clock | 1725 MHz | 2250 MHz +30% |
| RT cores | 46 | 80 +74% |
| Tensor cores | 184 | N/A |
| Memory | ||
| VRAM | 8 GB Meets Blender’s recommended VRAM | 16 GB More headroom for complex scenes+100% |
| Memory bandwidth | 448 GB/s | 512 GB/s +14% |
| Memory type | GDDR6 | GDDR6 |
| Memory bus | 256-bit | 256-bit |
| Platform | ||
| Architecture | Ampere | RDNA 2.0 |
| Render support | OptiX, CUDA | OpenCL |
| TDP | 220 W −27% | 300 W |
| System PSU | 650 W Manufacturer requirement−24% | 850 W Manufacturer requirement |
| Release year | 2020 | 2020 |
Blender Cycles benchmarks
Estimated seconds / frame Lower is faster
RTX 3070
Blender 5.2.0 · OptiX · 68 runs
RX 6900 XT 16 GB
Blender 5.2.0 · HIP · 9 runs
Junkshop
Monster
Classroom
Which GPU should you choose for Blender?
RTX 3070 is faster for Blender rendering, but RX 6900 XT 16 GB has more VRAM. That makes this a speed-versus-scene-headroom decision.
Cycles rendering performance
RTX 3070 leads by 3.5% in the Renderjuice Blender benchmark model (2,966 vs 2,865). For render-time-first decisions, that is the card to prioritize.
VRAM and scene capacity
RX 6900 XT 16 GB has more scene headroom with 16 GB of VRAM versus 8 GB on RTX 3070. That matters most for large environments, dense geometry, high-resolution textures, and less optimized production files.
Power ratings and cooling
RTX 3070 is the lower-power option at 220 W TDP, compared with 300 W for RX 6900 XT 16 GB. If render speed is close, that can make RTX 3070 easier to cool and run quietly.
Is the upgrade worthwhile?
RTX 3070 is the straightforward performance pick, while RX 6900 XT 16 GB needs a price, power, availability, or compatibility advantage to make more sense.
Comparison summary
RTX 3070 leads the Blender benchmark score by 3.5%.
Fastest in Cycles: RTX 3070 4% faster than RX 6900 XT 16 GB.
Most VRAM: RX 6900 XT 16 GB 100% more VRAM than RTX 3070.
Lowest power draw: RTX 3070 27% lower rating than RX 6900 XT 16 GB.
Cheapest: RTX 3070 48% cheaper than RX 6900 XT 16 GB.
Best value for money: RTX 3070 101% better value than RX 6900 XT 16 GB.
RTX 3070 has 8 GB of VRAM, while RX 6900 XT 16 GB has 16 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.