GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
The GeForce RTX 5090 is dramatically faster than the GeForce RTX 4070, leading by roughly 170% in our performance index. The GeForce RTX 4070, however, delivers more performance per dollar — $2,135 GBP cheaper.
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GeForce RTX 5090 vs GeForce RTX 4070: In-Depth Breakdown
Performance: GeForce RTX 5090 vs GeForce RTX 4070
The GeForce RTX 5090 is dramatically faster, around 170% ahead of the GeForce RTX 4070. That gap is enough to move it up a tier: the GeForce RTX 5090 is comfortable at 4K and high-refresh 1440p, while the GeForce RTX 4070 is better matched to 1440p. The GeForce RTX 5090 packs 21,760 CUDA cores versus 5,888 on the GeForce RTX 4070.
Price & Value
Right now the GeForce RTX 4070 starts at $1,045 GBP against $3,180 GBP for the GeForce RTX 5090. Despite being slower, the GeForce RTX 4070 offers the better performance-per-dollar (~13% better value), so budget-focused buyers should weigh it carefully. The GeForce RTX 4070 still sits about $445 GBP above its $600 GBP MSRP. The GeForce RTX 5090 still sits about $1,181 GBP above its $1,999 GBP MSRP.
Power & Efficiency
The GeForce RTX 4070 draws just 200W versus 575W for the GeForce RTX 5090, and it also delivers more performance per watt — so it runs cooler and quieter and needs less PSU headroom.
VRAM & Future-Proofing
With 32GB against 12GB, the GeForce RTX 5090 has more headroom for 4K textures and memory-hungry creative/AI tasks where the GeForce RTX 4070's 12GB can fall short. The GeForce RTX 5090's memory is also faster — 1,792 GB/s versus 504 GB/s (512-bit vs 192-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Generation & Longevity
The GeForce RTX 5090 is roughly 2 years newer than the GeForce RTX 4070 (Blackwell vs Ada Lovelace), so it generally benefits from a more modern architecture and longer driver-support runway.
Which should you buy: GeForce RTX 4070 or GeForce RTX 5090?
Choose the GeForce RTX 5090 if you want the most performance and can absorb the higher price. If you're optimizing for value, the GeForce RTX 4070 stretches your money further for only slightly lower performance.