GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
On raw speed the GeForce RTX 4080 comes out significantly faster — about 29% ahead of the GeForce RTX 3090 Ti. But the GeForce RTX 3090 Ti is the better value, undercutting it by $453 GBP for the performance you get.
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GeForce RTX 4080 vs GeForce RTX 3090 Ti: In-Depth Breakdown
Performance: GeForce RTX 4080 vs GeForce RTX 3090 Ti
The GeForce RTX 4080 is significantly faster, around 29% ahead of the GeForce RTX 3090 Ti. Both cards sit in the same broad class, well suited to 4K with upscaling and native 1440p.
Price & Value
The GeForce RTX 3090 Ti currently lists from $1,464 GBP, $453 GBP less than the GeForce RTX 4080 at $1,917 GBP. Despite being slower, the GeForce RTX 3090 Ti offers the better performance-per-dollar, so budget-focused buyers should weigh it carefully. The GeForce RTX 3090 Ti is trading below its $1,999 GBP MSRP — a genuine deal. The GeForce RTX 4080 still sits about $718 GBP above its $1,199 GBP MSRP.
Power & Efficiency
At 320W against 450W, the GeForce RTX 4080 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 3090 Ti carries 24GB versus 16GB on the GeForce RTX 4080. The extra 8GB helps at 4K, with high-resolution texture packs, and for content-creation or local-AI workloads that exhaust smaller buffers. The GeForce RTX 3090 Ti's memory is also faster — 1,008 GB/s versus 717 GB/s (384-bit vs 256-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Which should you buy: GeForce RTX 4080 or GeForce RTX 3090 Ti?
Choose the GeForce RTX 4080 if you want the most performance and can absorb the higher price. If you're optimizing for value, the GeForce RTX 3090 Ti stretches your money further for only slightly lower performance.