RTX 3090 vs RX 6900 XT
Full specification comparison between the NVIDIA GeForce RTX 3090 (2020) and the AMD Radeon RX 6900 XT (2020).
RTX 3090
NVIDIA High-end
- ✓ More VRAM (24 GB vs 16 GB)
- ✓ Wider memory bus (384-bit vs 256-bit)
RX 6900 XT
AMD High-end
- ✓ Lower power draw (300 W vs 350 W)
- ✓ Cheaper at launch ($999 vs $1499)
- ✓ Better performance per dollar
Verdict: The RTX 3090 and RX 6900 XT deliver essentially the same level of performance — the difference is within a few percent and won't be noticeable in real use. The decision comes down to price, power draw and features.
The RTX 3090 also carries more video memory (24 GB vs 16 GB), which matters for high-resolution textures, modern AAA titles and future-proofing.
At launch pricing, the RX 6900 XT offers more performance per dollar, and the RX 6900 XT is the more power-efficient chip.
Estimated performance
Estimated average 1440p raster gaming performance compiled from publicly available benchmark data. Individual games vary.
Specs side by side
| Specification | RTX 3090 | RX 6900 XT |
|---|---|---|
| Architecture | Ampere | RDNA 2 |
| Release year | 2020 | 2020 |
| Est. performance | ||
| Shading units | ||
| Boost clock | ||
| FP32 compute | ||
| VRAM | ||
| Memory type | GDDR6X | GDDR6 |
| Memory bus | ||
| Board power | ||
| Launch MSRP |
Green bars mark the better value in each row (for power and price, lower wins).
Frequently asked questions
Is the RTX 3090 better than the RX 6900 XT?
They perform almost identically (within ~1%). Choose based on price, power consumption and platform rather than raw speed.
How much faster is the RTX 3090 than the RX 6900 XT?
Roughly 0% on average in raster gaming workloads. The gap varies by title, resolution and settings.
Which graphics card is better value?
Comparing launch prices, the RX 6900 XT delivers more performance per dollar. Check current street prices, as market pricing often shifts the value equation.