RX 6600 XT vs RX 7900 GRE
Full specification comparison between the AMD Radeon RX 6600 XT (2021) and the AMD Radeon RX 7900 GRE (2023).
RX 6600 XT
AMD Entry-level
- ✓ Lower power draw (160 W vs 260 W)
- ✓ Cheaper at launch ($379 vs $549)
RX 7900 GRE
AMD High-end
- ✓ ~130% faster on average
- ✓ More VRAM (16 GB vs 8 GB)
- ✓ Wider memory bus (256-bit vs 128-bit)
- ✓ Newer (2023 vs 2021)
- ✓ Better performance per dollar
Verdict: The RX 7900 GRE is roughly 130% faster than the RX 6600 XT on average — a clear, noticeable performance advantage.
The RX 7900 GRE also carries more video memory (16 GB vs 8 GB), which matters for high-resolution textures, modern AAA titles and future-proofing.
At launch pricing, the RX 7900 GRE offers more performance per dollar, and the RX 7900 GRE 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 | RX 6600 XT | RX 7900 GRE |
|---|---|---|
| Architecture | RDNA 2 | RDNA 3 |
| Release year | 2021 | 2023 |
| Est. performance | ||
| Shading units | ||
| Boost clock | ||
| FP32 compute | ||
| VRAM | ||
| Memory type | GDDR6 | 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 RX 7900 GRE better than the RX 6600 XT?
Yes — based on aggregated benchmark data, the RX 7900 GRE is about 130% faster than the RX 6600 XT on average.
How much faster is the RX 7900 GRE than the RX 6600 XT?
Roughly 130% 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 7900 GRE delivers more performance per dollar. Check current street prices, as market pricing often shifts the value equation.