L40S vs RX 6900 XT for Blender
Compare L40S 48 GB and RX 6900 XT 16 GB for Blender Cycles. See benchmark performance, VRAM, power ratings and checked prices side by side. L40S 48 GB leads the Blender benchmark score by 174.0%.
Fastest in Cycles
L40S 48 GB
174% faster than RX 6900 XT 16 GB
Most VRAM
L40S 48 GB
200% more VRAM than RX 6900 XT 16 GB
Lowest power draw
Tie
Same power rating
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 6900 XT 16 GB |
|---|---|---|
| Lowest price | Price unavailable No current offer matches your preferences. | $889.00 Checked Oct 9, 2026 |
| Value for money | N/A | 3.22 |
| Blender benchmark score | 7,848.06 +174% | 2,864.57 |
| VRAM | 48 GB More capacity for heavy scenes+200% | 16 GB More headroom for complex scenes |
| System PSU | 700 W Secondary source suggestion−18% | 850 W Manufacturer requirement |
| Render support | CUDA, OpenCL | OpenCL |
| Performance | ||
| CUDA cores | 18,176 | N/A |
| Boost clock | 2520 MHz +12% | 2250 MHz |
| RT cores | 142 +78% | 80 |
| Tensor cores | 568 | N/A |
| Memory | ||
| Memory bandwidth | 864 GB/s +69% | 512 GB/s |
| Memory type | GDDR6 | GDDR6 |
| Memory bus | 384-bit +50% | 256-bit |
| Platform | ||
| Architecture | Ada Lovelace | RDNA 2.0 |
| TDP | 300 W | 300 W |
| Release year | 2022 | 2020 |
Blender Cycles benchmarks
Estimated seconds / frame Lower is faster
L40S 48 GB
Blender 4.5.0 · OptiX · 8 runs
RX 6900 XT 16 GB
Blender 5.2.0 · HIP · 9 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 174.0% in the Renderjuice Blender benchmark model (7,848 vs 2,865). 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 16 GB on RX 6900 XT 16 GB. That matters most for large environments, dense geometry, high-resolution textures, and less optimized production files.
Power ratings and cooling
Both cards list a 300 W TDP, so power draw is not the deciding spec on paper. Cooling, case airflow, and actual board partner limits still matter.
Is the upgrade worthwhile?
L40S 48 GB is both the newer and faster Blender rendering choice here. The main reason to choose RX 6900 XT 16 GB would be price, availability, existing ownership, or a specific workstation requirement.
Comparison summary
L40S 48 GB leads the Blender benchmark score by 174.0%.
Fastest in Cycles: L40S 48 GB 174% faster than RX 6900 XT 16 GB.
Most VRAM: L40S 48 GB 200% more VRAM than RX 6900 XT 16 GB.
Lowest power draw: Tie Same power rating.
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 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.