RTX 3090 vs RTX 4070 for Blender
Compare RTX 3090 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 0.6%.
Fastest in Cycles
RTX 4070
<1% faster than RTX 3090
Most VRAM
RTX 3090
100% more VRAM than RTX 4070
Lowest power draw
RTX 4070
43% lower rating than RTX 3090
Cheapest
RTX 4070
58% cheaper than RTX 3090
Best value for money
RTX 4070
139% better value than RTX 3090
GPU comparison
Key specifications for Blender rendering.
| Spec | RTX 3090 | RTX 4070 |
|---|---|---|
| Lowest price | $1,969.99 Checked Oct 9, 2026 | $829.00 Checked Oct 9, 2026 |
| Value for money | 2.59 | 6.18 +139% |
| Blender benchmark score | 5,096.96 | 5,126.67 +<1% |
| VRAM | 24 GB More capacity for heavy scenes+100% | 12 GB Meets Blender’s recommended VRAM |
| System PSU | 750 W Manufacturer requirement | N/A |
| Performance | ||
| CUDA cores | 10,496 +78% | 5,888 |
| Boost clock | 1.70 GHz | 2475 MHz +46% |
| RT cores | 82 +78% | 46 |
| Tensor cores | 328 +78% | 184 |
| Memory | ||
| Memory bandwidth | 936.2 GB/s +86% | 504.2 GB/s |
| Memory type | GDDR6X | GDDR6X |
| Memory bus | 384-bit +100% | 192-bit |
| Memory speed | 19.5 Gbps | N/A |
| Platform | ||
| Architecture | Ampere | Ada Lovelace |
| Render support | OptiX, CUDA | OptiX, CUDA |
| TDP | 350 W | 200 W −43% |
| Release year | 2020 | 2023 |
Blender Cycles benchmarks
Estimated seconds / frame Lower is faster
RTX 3090
Blender 5.2.0 · OptiX · 85 runs
RTX 4070
Blender 5.2.0 · OptiX · 30 runs
Junkshop
Monster
Classroom
Which GPU should you choose for Blender?
RTX 4070 is faster for Blender rendering, but RTX 3090 has more VRAM. That makes this a speed-versus-scene-headroom decision.
Cycles rendering performance
RTX 4070 leads by 0.6% in the Renderjuice Blender benchmark model (5,127 vs 5,097). For render-time-first decisions, that is the card to prioritize.
VRAM and scene capacity
RTX 3090 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 350 W for RTX 3090. 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 RTX 3090 would be price, availability, existing ownership, or a specific workstation requirement.
Comparison summary
RTX 4070 leads the Blender benchmark score by 0.6%.
Fastest in Cycles: RTX 4070 <1% faster than RTX 3090.
Most VRAM: RTX 3090 100% more VRAM than RTX 4070.
Lowest power draw: RTX 4070 43% lower rating than RTX 3090.
Cheapest: RTX 4070 58% cheaper than RTX 3090.
Best value for money: RTX 4070 139% better value than RTX 3090.
RTX 3090 has 24 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.