RX 7800 XT vs RTX 4070 Super: Which Should You Buy?
Head-to-head on performance, VRAM, power and value for 2026.
Quick Summary · TL;DR
On our relative performance index the RTX 4070 Super leads the RX 7800 XT by about 7% — a small gap. The RX 7800 XT has more VRAM (16GB vs 12GB), which helps at high resolutions and in VRAM-hungry titles. The RTX 4070 Super adds NVIDIA DLSS and stronger ray tracing, while the RX 7800 XT typically leans on raw rasterisation value.
| RX 7800 XT | RTX 4070 Super | |
|---|---|---|
| Performance index | 60/100 | 64/100 |
| VRAM | 16GB | 12GB |
| Board power (TBP) | 263W | 220W |
| Recommended PSU | 700W | 700W |
| Power connector | dual 8-pin | 16-pin 12VHPWR |
| Generation | RX 7000 | RTX 40 |
Relative gaming index — an estimate of typical performance. Real-world gaps vary by game, resolution and settings.
Which should you buy?
Buy the RTX 4070 Super if you want the higher frame rate and can find it at a fair price. Choose the RX 7800 XT if it is clearly cheaper and its 12GB+ of VRAM and features cover your target resolution. For ray tracing and DLSS, the NVIDIA option has the edge; for raw rasterisation per dollar, the alternative often wins.
Power planning: RX 7800 XT PSU · RTX 4070 Super PSU.
Frequently asked questions
Is the RX 7800 XT better than the RTX 4070 Super?
On our relative index the RTX 4070 Super is about 7% ahead of the RX 7800 XT. The RX 7800 XT has more VRAM (16GB vs 12GB), which helps at high resolutions and in VRAM-hungry titles. The smaller the gap, the more other factors like price, VRAM and features should decide it.
Which is better value, the RX 7800 XT or the RTX 4070 Super?
Value depends on the price you can find each at. The slower card is usually the smart buy if it is meaningfully cheaper, unless you need the extra VRAM or features of the faster one.
Do the RX 7800 XT and RTX 4070 Super need different power supplies?
The RX 7800 XT is rated around a 700W PSU and the RTX 4070 Super around 700W. Size for the more demanding card if you might upgrade, and prefer an ATX 3.x unit for any 12V-2x6 card.
Make sure your CPU can keep up with either card using the Bottleneck Estimator, or compare more cards in the GPU comparison hub.