RX 7700 XT vs RTX 4070: 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 leads the RX 7700 XT by about 7% — a small gap. Both carry 12GB of VRAM. The RTX 4070 adds NVIDIA DLSS and stronger ray tracing, while the RX 7700 XT typically leans on raw rasterisation value.
| RX 7700 XT | RTX 4070 | |
|---|---|---|
| Performance index | 54/100 | 58/100 |
| VRAM | 12GB | 12GB |
| Board power (TBP) | 245W | 200W |
| Maker PSU guidance | 700W | 650W |
| Our starting PSU class | 750W | 650W |
| Power connector | 8-pin PCIe | 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 if you want the higher frame rate and can find it at a fair price. Choose the RX 7700 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 7700 XT PSU · RTX 4070 PSU.
RX 7700 XT vs RTX 4070 at each resolution
| Resolution | RX 7700 XT | RTX 4070 |
|---|---|---|
| 1080p | Excellent | Excellent |
| 1440p | Good (6 short of Great) | Good (2 short of Great) |
| 4K | Playable (10 short of Good) | Playable (6 short of Good) |
On our rating lines the RX 7700 XT (54) and RTX 4070 (58) land on the same verdict at every resolution, so the 4-point index gap does not move either card into a different class. Memory, power and the price you can find decide it.
Power, PSU and efficiency
Reference board power is 245W for the RX 7700 XT and 200W for the RTX 4070, a 45W difference. Per 100W that works out to 22 index points for the RX 7700 XT and 29 for the RTX 4070, so the RTX 4070 does more per watt. An existing 650W supply meets the maker guidance for the RTX 4070 but not for the RX 7700 XT (700W). Full sizing: RX 7700 XT PSU · RTX 4070 PSU.
Ratings use the same index lines as our GPU resolution pages; the index is an editorial tier summary, not a benchmark. PSU figures are the makers’ reference guidance reviewed 12 September 2026.
Sources & verification
- AMD Radeon desktop graphics specifications
- NVIDIA GeForce RTX 40 Series specifications
- SpecsCalc calculation methodology and limitations
Relative indices summarize broad gaming tiers and are not a substitute for game-by-game benchmark averages. Price and driver updates can change the buying recommendation. Last reviewed September 19, 2026.
Frequently asked questions
Is the RX 7700 XT better than the RTX 4070?
On our relative index the RTX 4070 is about 7% ahead of the RX 7700 XT. Both carry 12GB of VRAM. The smaller the gap, the more other factors like price, VRAM and features should decide it.
Which is better value, the RX 7700 XT or the RTX 4070?
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 7700 XT and RTX 4070 need different power supplies?
The RX 7700 XT's maker lists a 700W supply and the RTX 4070's lists 650W; our starting classes are 750W and 650W. If you might move to the RX 7700 XT later, size for its 700W now. The RTX 4070 can also take a PCIe Gen 5 (12V-2x6) cable; see the connector guide.
Make sure your CPU can keep up with either card using the Bottleneck Estimator, or compare more cards in the GPU comparison hub.