NVIDIA GeForce RTX 4090 vs AMD Radeon RX 7900 XTX
Head-to-head comparison: specs, benchmarks, ray tracing, and value. Which is right for your build?
NVIDIA GeForce RTX 4090
Still a beast in 2026. The RTX 4090 remains a genuine 4K monster, especially with DLSS 3 frame generation. It misses out on DLSS 4's multi-frame gen exclusive features, but raw rasterization is still elite. With prices fluctuating since the 5090 launch, it can occasionally be found at attractive discounts.
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AMD Radeon RX 7900 XTX
The previous-gen AMD flagship, still hugely capable for raster-focused 4K gaming with 24GB of VRAM. Ray tracing is its weakness compared to RDNA 4. Often deeply discounted now.
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| Spec | NVIDIA GeForce RTX 4090 | AMD Radeon RX 7900 XTX |
|---|---|---|
| Price (MSRP) | $1,599 | $999 |
| VRAM | 24GB GDDR6X | 24GB GDDR6 |
| Memory Bus | 384-bit | 384-bit |
| Memory Bandwidth | 1008 GB/s | 960 GB/s |
| CUDA / Stream Cores | 16,384 | 6,144 |
| Boost Clock | 2520 MHz | 2500 MHz |
| Ray Tracing Cores | 128 | 96 |
| TDP | 450W | 355W |
| 3DMark Time Spy | 35,200 | 24,500 |
| Rasterization Score | 88/100 | 67/100 |
| Ray Tracing Score | 86/100 | 50/100 |
| Value Score | 70/100 | 76/100 |
The Verdict
Based on raw performance, ray tracing capability, and value, the NVIDIA GeForce RTX 4090 comes out ahead in this comparison. That said, the right pick depends on your budget, target resolution, and whether you care more about ray tracing, rasterization, or VRAM capacity. Both cards have their place — read the individual reviews for the full breakdown.