L40S vs RX 7900 XTX for Blender
Compare L40S 48 GB and RX 7900 XTX for Blender Cycles. See benchmark performance, VRAM, power ratings and checked prices side by side. L40S 48 GB leads the Blender benchmark score by 56.8%.
Fastest in Cycles
L40S 48 GB
57% faster than RX 7900 XTX
Most VRAM
L40S 48 GB
100% more VRAM than RX 7900 XTX
Lowest power draw
L40S 48 GB
15% lower rating than RX 7900 XTX
Cheapest
Cannot compare
Price unavailable for some GPUs
Best value for money
Cannot compare
Price or benchmark unavailable for some GPUs
GPU comparison
Key specifications for Blender rendering.
| Spec | L40S 48 GB | RX 7900 XTX |
|---|---|---|
| Lowest price | Price unavailable No current offer matches your preferences. | $1,799.99 Checked Oct 9, 2026 |
| Value for money | N/A | 2.78 |
| Blender benchmark score | 7,848.06 +57% | 5,004.78 |
| VRAM | 48 GB More capacity for heavy scenes+100% | 24 GB More capacity for heavy scenes |
| System PSU | 700 W Secondary source suggestion−13% | 800 W Manufacturer requirement |
| Render support | CUDA, OpenCL | HIP |
| Performance | ||
| CUDA cores | 18,176 | N/A |
| Boost clock | 2520 MHz +<1% | 2498 MHz |
| RT cores | 142 +48% | 96 |
| Tensor cores | 568 | N/A |
| Memory | ||
| Memory bandwidth | 864 GB/s | 960 GB/s +11% |
| Memory type | GDDR6 | GDDR6 |
| Memory bus | 384-bit | 384-bit |
| Platform | ||
| Architecture | Ada Lovelace | RDNA 3 |
| TDP | 300 W −15% | 355 W |
| Release year | 2022 | 2022 |
Blender Cycles benchmarks
Estimated seconds / frame Lower is faster
L40S 48 GB
Blender 4.5.0 · OptiX · 8 runs
RX 7900 XTX
Blender 5.2.0 · HIP · 49 runs
Junkshop
Monster
Classroom
Which GPU should you choose for Blender?
L40S 48 GB is the stronger Blender rendering pick here based on benchmark score.
Cycles rendering performance
L40S 48 GB leads by 56.8% in the Renderjuice Blender benchmark model (7,848 vs 5,005). 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 RX 7900 XTX. 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 355 W for RX 7900 XTX. If render speed is close, that can make L40S 48 GB easier to cool and run quietly.
Is the upgrade worthwhile?
L40S 48 GB is the straightforward performance pick, while RX 7900 XTX needs a price, power, availability, or compatibility advantage to make more sense.
Comparison summary
L40S 48 GB leads the Blender benchmark score by 56.8%.
Fastest in Cycles: L40S 48 GB 57% faster than RX 7900 XTX.
Most VRAM: L40S 48 GB 100% more VRAM than RX 7900 XTX.
Lowest power draw: L40S 48 GB 15% lower rating than RX 7900 XTX.
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 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.