L40S vs RTX 4090 D for Blender
Compare L40S 48 GB and RTX 4090 D for Blender Cycles. See benchmark performance, VRAM, power ratings and checked prices side by side. RTX 4090 D leads the Blender benchmark score by 27.4%.
Fastest in Cycles
RTX 4090 D
27% faster than L40S 48 GB
Most VRAM
L40S 48 GB
100% more VRAM than RTX 4090 D
Lowest power draw
L40S 48 GB
29% lower rating than RTX 4090 D
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 | 7,848.06 | 9,997.62 +27% |
| CUDA cores | 18,176 +25% | 14,592 |
| Boost clock | 2520 MHz | 2520 MHz |
| RT cores | 142 +25% | 114 |
| Tensor cores | 568 +25% | 456 |
| Memory | ||
| VRAM | 48 GB More capacity for heavy scenes+100% | 24 GB More capacity for heavy scenes |
| Memory bandwidth | 864 GB/s | 1,010 GB/s +17% |
| Memory type | GDDR6 | GDDR6X |
| Memory bus | 384-bit | 384-bit |
| Platform | ||
| Architecture | Ada Lovelace | Ada Lovelace |
| Render support | CUDA, OpenCL | OptiX |
| TDP | 300 W −29% | 425 W |
| System PSU | 700 W Secondary source suggestion−13% | 800 W Secondary source suggestion |
| Release year | 2022 | 2023 |
Blender Cycles benchmarks
Estimated seconds / frame Lower is faster
L40S 48 GB
Blender 4.5.0 · OptiX · 8 runs
RTX 4090 D
Blender 4.3.0 · OptiX · 8 runs
Junkshop
Monster
Classroom
Which GPU should you choose for Blender?
RTX 4090 D is faster for Blender rendering, but L40S 48 GB has more VRAM. That makes this a speed-versus-scene-headroom decision.
Cycles rendering performance
RTX 4090 D leads by 27.4% in the Renderjuice Blender benchmark model (9,998 vs 7,848). For render-time-first decisions, that is the card to prioritize.
VRAM and scene capacity
L40S 48 GB has more scene headroom with 48 GB of VRAM versus 24 GB on RTX 4090 D. That matters most for large environments, dense geometry, high-resolution textures, and less optimized production files.
Power ratings and cooling
L40S 48 GB is the lower-power option at 300 W TDP, compared with 425 W for RTX 4090 D. If render speed is close, that can make L40S 48 GB easier to cool and run quietly.
Is the upgrade worthwhile?
RTX 4090 D is both the newer and faster Blender rendering choice here. The main reason to choose L40S 48 GB would be price, availability, existing ownership, or a specific workstation requirement.
Comparison summary
RTX 4090 D leads the Blender benchmark score by 27.4%.
Fastest in Cycles: RTX 4090 D 27% faster than L40S 48 GB.
Most VRAM: L40S 48 GB 100% more VRAM than RTX 4090 D.
Lowest power draw: L40S 48 GB 29% lower rating than RTX 4090 D.
Cheapest: Cannot compare Price unavailable for some GPUs.
Best value for money: Cannot compare Price or benchmark unavailable for some GPUs.
L40S 48 GB has 48 GB of VRAM, while RTX 4090 D 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.