RTX 4070 vs RX 7900 XTX for Blender
Compare RTX 4070 and RX 7900 XTX for Blender Cycles. See benchmark performance, VRAM, power ratings and checked prices side by side. RTX 4070 leads the Blender benchmark score by 2.4%.
Fastest in Cycles
RTX 4070
2% faster than RX 7900 XTX
Most VRAM
RX 7900 XTX
100% more VRAM than RTX 4070
Lowest power draw
RTX 4070
44% lower rating than RX 7900 XTX
Cheapest
RTX 4070
54% cheaper than RX 7900 XTX
Best value for money
RTX 4070
125% better value than RX 7900 XTX
| Spec | ||
|---|---|---|
| Lowest price | $819.00 Checked Oct 2, 2026 | $1,795.00 Checked Oct 2, 2026 |
| Value for money | 6.26 +125% | 2.79 |
| Performance | ||
| Blender benchmark score | 5,126.67 +2% | 5,004.24 |
| CUDA cores | 5,888 | N/A |
| Boost clock | 2475 MHz | 2498 MHz +<1% |
| RT cores | 46 | 96 +109% |
| Tensor cores | 184 | N/A |
| Memory | ||
| VRAM | 12 GB Meets Blender’s recommended VRAM | 24 GB More capacity for heavy scenes+100% |
| Memory bandwidth | 504.2 GB/s | 960 GB/s +90% |
| Memory type | GDDR6X | GDDR6 |
| Memory bus | 192-bit | 384-bit +100% |
| Platform | ||
| Architecture | Ada Lovelace | RDNA 3 |
| Render support | OptiX, CUDA | HIP |
| TDP | 200 W −44% | 355 W |
| System PSU | N/A | 800 W Manufacturer requirement |
| Release year | 2023 | 2022 |
Blender Cycles benchmarks
Estimated seconds / frame Lower is faster
RTX 4070
Blender 5.2.0 · OptiX · 30 runs
RX 7900 XTX
Blender 5.2.0 · HIP · 48 runs
Junkshop
Monster
Classroom
Which GPU should you choose for Blender?
RTX 4070 is faster for Blender rendering, but RX 7900 XTX has more VRAM. That makes this a speed-versus-scene-headroom decision.
Cycles rendering performance
RTX 4070 leads by 2.4% in the Renderjuice Blender benchmark model (5,127 vs 5,004). For render-time-first decisions, that is the card to prioritize.
VRAM and scene capacity
RX 7900 XTX has more scene headroom with 24 GB of VRAM versus 12 GB on RTX 4070. That matters most for large environments, dense geometry, high-resolution textures, and less optimized production files.
Power ratings and cooling
RTX 4070 is the lower-power option at 200 W TDP, compared with 355 W for RX 7900 XTX. If render speed is close, that can make RTX 4070 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 RX 7900 XTX would be price, availability, existing ownership, or a specific workstation requirement.
Comparison summary
RTX 4070 leads the Blender benchmark score by 2.4%.
Fastest in Cycles: RTX 4070 2% faster than RX 7900 XTX.
Most VRAM: RX 7900 XTX 100% more VRAM than RTX 4070.
Lowest power draw: RTX 4070 44% lower rating than RX 7900 XTX.
Cheapest: RTX 4070 54% cheaper than RX 7900 XTX.
Best value for money: RTX 4070 125% better value than RX 7900 XTX.
RTX 4070 has 12 GB of VRAM, while RX 7900 XTX 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.