GeForce RTX 4090 vs Radeon RX 7900 XTX
The GeForce RTX 4090 pulls ahead here — substantially quicker, about 29% ahead of the Radeon RX 7900 XTX. But the Radeon RX 7900 XTX is the better value, undercutting it by $1,920 GBP for the performance you get.
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Comparable or lower specs
GeForce RTX 4090 vs Radeon RX 7900 XTX: In-Depth Breakdown
Performance: GeForce RTX 4090 vs Radeon RX 7900 XTX
The GeForce RTX 4090 is significantly faster, around 29% ahead of the Radeon RX 7900 XTX. 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 XTX is better matched to 4K with upscaling and native 1440p.
Price & Value
Pricing has the Radeon RX 7900 XTX at $30 GBP, $1,920 GBP under the GeForce RTX 4090's $1,950 GBP. Despite being slower, the Radeon RX 7900 XTX offers the better performance-per-dollar (~4957% better value), so budget-focused buyers should weigh it carefully. The Radeon RX 7900 XTX is trading below its $999 GBP MSRP — a genuine deal. The GeForce RTX 4090 still sits about $351 GBP above its $1,599 GBP MSRP.
Power & Efficiency
At 355W vs 450W, the Radeon RX 7900 XTX is the gentler load on your system. The GeForce RTX 4090's extra power draw buys more performance per watt, not just more heat — worth it if your PSU has the headroom.
Features & Ecosystem
Beyond raw numbers, the GeForce RTX 4090 brings NVIDIA DLSS upscaling/frame generation and stronger ray tracing, while the Radeon RX 7900 XTX 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 XTX?
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 XTX stretches your money further for only slightly lower performance.
Frequently Asked Questions
Is the GeForce RTX 4090 better than the Radeon RX 7900 XTX?
Which is better for 4K gaming, the GeForce RTX 4090 or the Radeon RX 7900 XTX?
Is the GeForce RTX 4090 worth the extra $1,920 GBP over the Radeon RX 7900 XTX?
Which should you buy: GeForce RTX 4090 or Radeon RX 7900 XTX?
Video Benchmarks & Review
RX 9070 XT vs RX 7900 XTX vs RTX 5080 vs RTX 4090
Video Highlights
Curated gameplay footage and benchmarking review from GameBenchTV on YouTube.
Editorial Review: What the Benchmarks Show
This flagship battle analyzed by GameBenchTV tests the NVIDIA RTX 4090 (24GB) against AMD's top-tier Radeon RX 7900 XTX (24GB). While the RX 7900 XTX offers exceptional value in standard rasterization, the RTX 4090 retains an undisputed lead in heavy ray tracing and path-traced workloads.
Technical Specifications Comparison
Architecture & Cores
| Specification | GeForce RTX 4090 | Radeon RX 7900 XTX |
|---|---|---|
| Architecture | Ada Lovelace | RDNA 3 |
| Process Node | TSMC 4N | TSMC N5 |
| CUDA Cores (CUDA Cores / Stream Processors) | 16,384✓ | 6,144 |
| Ray Tracing Cores | 128✓ | 96 |
| Tensor / AI Cores | 512✓ | 192 |
Clock Speeds
| Specification | GeForce RTX 4090 | Radeon RX 7900 XTX |
|---|---|---|
| Base Clock | 2,235 MHz✓ | 1,900 MHz |
| Boost Clock | 2,520 MHz✓ | 2,500 MHz |
Memory
| Specification | GeForce RTX 4090 | Radeon RX 7900 XTX |
|---|---|---|
| VRAM Capacity | 24 GB | 24 GB |
| Memory Type | GDDR6X | GDDR6 |
| Memory Bus | 384-bit | 384-bit |
| Memory Speed | 21 Gbps✓ | 20 Gbps |
| Bandwidth | 1,008 GB/s✓ | 960 GB/s |
Connectivity & Power
| Specification | GeForce RTX 4090 | Radeon RX 7900 XTX |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| TDP | 450 W | 355 W✓ |
| Power Connectors | 1x 16-pin | 2x 8-pin |
| Released | Sep 2022 | Nov 2022 |
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