RX 6900 XT vs RX 7800 XT for Blender
Compare RX 6900 XT 16 GB and RX 7800 XT 16 GB for Blender Cycles. See benchmark performance, VRAM, power ratings and checked prices side by side. RX 6900 XT 16 GB leads the Blender benchmark score by 4.8%.
Fastest in Cycles
RX 6900 XT 16 GB
5% faster than RX 7800 XT 16 GB
Most VRAM
Tie
Same memory capacity
Lowest power draw
RX 7800 XT 16 GB
12% lower rating than RX 6900 XT 16 GB
Cheapest
Cannot compare
Price unavailable for some GPUs
Best value for money
Cannot compare
Price or benchmark unavailable for some GPUs
| Spec | ||
|---|---|---|
| Lowest price | $889.00 Checked Oct 2, 2026 | Price unavailable No current offer matches your preferences. |
| Value for money | 3.22 | N/A |
| Performance | ||
| Blender benchmark score | 2,864.57 +5% | 2,732.29 |
| Boost clock | 2250 MHz | 2430 MHz +8% |
| RT cores | 80 +33% | 60 |
| Memory | ||
| VRAM | 16 GB More headroom for complex scenes | 16 GB More headroom for complex scenes |
| Memory bandwidth | 512 GB/s | 624 GB/s +22% |
| Memory type | GDDR6 | GDDR6 |
| Memory bus | 256-bit | 256-bit |
| Platform | ||
| Architecture | RDNA 2.0 | RDNA 3.0 |
| Render support | OpenCL | OpenCL |
| TDP | 300 W | 263 W −12% |
| System PSU | 850 W Manufacturer requirement | 700 W Manufacturer requirement−18% |
| Release year | 2020 | 2023 |
Blender Cycles benchmarks
Estimated seconds / frame Lower is faster
RX 6900 XT 16 GB
Blender 5.2.0 · HIP · 9 runs
RX 7800 XT 16 GB
Blender 5.2.0 · HIP · 10 runs
Junkshop
Monster
Classroom
Which GPU should you choose for Blender?
RX 6900 XT 16 GB is the stronger Blender rendering pick here, and both cards have the same VRAM capacity.
Cycles rendering performance
RX 6900 XT 16 GB leads by 4.8% in the Renderjuice Blender benchmark model (2,865 vs 2,732). For render-time-first decisions, that is the card to prioritize.
VRAM and scene capacity
Both cards have 16 GB of VRAM, so the decision is less about scene capacity and more about render speed, architecture, power draw, and price.
Power ratings and cooling
RX 7800 XT 16 GB is the lower-power option at 263 W TDP, compared with 300 W for RX 6900 XT 16 GB. If render speed is close, that can make RX 7800 XT 16 GB easier to cool and run quietly.
Is the upgrade worthwhile?
RX 7800 XT 16 GB is newer, but RX 6900 XT 16 GB still leads this Blender benchmark comparison. That makes the older card worth considering when used pricing or VRAM capacity is favorable.
Comparison summary
RX 6900 XT 16 GB leads the Blender benchmark score by 4.8%.
Fastest in Cycles: RX 6900 XT 16 GB 5% faster than RX 7800 XT 16 GB.
Most VRAM: Tie Same memory capacity.
Lowest power draw: RX 7800 XT 16 GB 12% lower rating than RX 6900 XT 16 GB.
Cheapest: Cannot compare Price unavailable for some GPUs.
Best value for money: Cannot compare Price or benchmark unavailable for some GPUs.
Both GPUs ship with 16 GB of VRAM, so the tradeoff is more about speed, architecture, and efficiency than memory capacity.
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.