GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
Market Value Leader
Radeon RX 7900 XT is the clear winner, offering 212.5% better value than GeForce RTX 4090.
On raw speed the GeForce RTX 4090 comes out dramatically faster — about 44% ahead of the Radeon RX 7900 XT. But the Radeon RX 7900 XT is the better value, undercutting it by $2,481 EUR for the performance you get.
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Comparable or lower specs
GeForce RTX 4090 vs Radeon RX 7900 XT: In-Depth Breakdown
Performance: GeForce RTX 4090 vs Radeon RX 7900 XT
The GeForce RTX 4090 is dramatically faster, around 44% ahead of the Radeon RX 7900 XT. That gap is enough to move it up a tier: the GeForce RTX 4090 is comfortable at 4K and high-refresh 1440p, while the Radeon RX 7900 XT is better matched to 4K with upscaling and native 1440p.
Price & Value
The Radeon RX 7900 XT currently lists from $709 EUR, $2,481 EUR less than the GeForce RTX 4090 at $3,190 EUR. Despite being slower, the Radeon RX 7900 XT offers the better performance-per-dollar (~212% better value), so budget-focused buyers should weigh it carefully. The Radeon RX 7900 XT is trading below its $899 EUR MSRP — a genuine deal. The GeForce RTX 4090 still sits about $1,591 EUR above its $1,599 EUR MSRP.
Power & Efficiency
At 300W against 450W, the Radeon RX 7900 XT is both the lower-power and the more efficient card, making it the easier build to cool and power.
VRAM & Future-Proofing
The GeForce RTX 4090 carries 24GB versus 20GB on the Radeon RX 7900 XT. The extra 4GB helps at 4K, with high-resolution texture packs, and for content-creation or local-AI workloads that exhaust smaller buffers.
Features & Ecosystem
Beyond raw numbers, the GeForce RTX 4090 brings NVIDIA DLSS upscaling/frame generation and stronger ray tracing, while the Radeon RX 7900 XT offers AMD FSR upscaling and strong rasterization value. If you lean on upscaling or ray tracing, that ecosystem difference can matter as much as the frame-rate gap.
Which should you buy: GeForce RTX 4090 or Radeon RX 7900 XT?
Choose the GeForce RTX 4090 if you want the most performance and can absorb the higher price. If you're optimizing for value, the Radeon RX 7900 XT stretches your money further for only slightly lower performance.
Frequently Asked Questions
Is the GeForce RTX 4090 better than the Radeon RX 7900 XT?
Which is better for 4K gaming, the GeForce RTX 4090 or the Radeon RX 7900 XT?
Is the GeForce RTX 4090 worth the extra $2,481 EUR over the Radeon RX 7900 XT?
Does the GeForce RTX 4090 have enough VRAM advantage to matter?
Technical Specifications Comparison
Architecture & Cores
| Specification | GeForce RTX 4090 | Radeon RX 7900 XT |
|---|---|---|
| Architecture | Ada Lovelace | RDNA 3 |
| Process Node | TSMC 4N | TSMC N5 |
| CUDA Cores (CUDA Cores / Stream Processors) | 16,384✓ | 5,376 |
| Ray Tracing Cores | 128✓ | 84 |
| Tensor / AI Cores | 512✓ | 168 |
Clock Speeds
| Specification | GeForce RTX 4090 | Radeon RX 7900 XT |
|---|---|---|
| Base Clock | 2,235 MHz✓ | 1,500 MHz |
| Boost Clock | 2,520 MHz✓ | 2,400 MHz |
Memory
| Specification | GeForce RTX 4090 | Radeon RX 7900 XT |
|---|---|---|
| VRAM Capacity | 24 GB✓ | 20 GB |
| Memory Type | GDDR6X | GDDR6 |
| Memory Bus | 384-bit✓ | 320-bit |
| Memory Speed | 21 Gbps✓ | 20 Gbps |
| Bandwidth | 1,008 GB/s✓ | 800 GB/s |
Connectivity & Power
| Specification | GeForce RTX 4090 | Radeon RX 7900 XT |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| TDP | 450 W | 300 W✓ |
| Power Connectors | 1x 16-pin | 2x 8-pin |
| Released | Sep 2022 | Nov 2022 |
Related Reading
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Modded Skyrim and Starfield at 4K can exceed 18GB of VRAM usage. Discover why the 7900 XT's 20GB buffer is a necessity.
The 20GB Value King: AMD Radeon RX 7900 XT Review
With its massive 20GB VRAM and aggressive price cuts, the Radeon RX 7900 XT is a high-end 4K contender that refuses to age. Is it still worth it today?