GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
The GeForce RTX 3090 Ti is significantly faster than the GeForce RTX 3080, leading by roughly 25% in our performance index. The GeForce RTX 3080, however, delivers more performance per dollar — $1,077 GBP cheaper.
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GeForce RTX 3090 Ti vs GeForce RTX 3080: In-Depth Breakdown
Performance: GeForce RTX 3090 Ti vs GeForce RTX 3080
The GeForce RTX 3090 Ti is significantly faster, around 25% ahead of the GeForce RTX 3080. That gap is enough to move it up a tier: the GeForce RTX 3090 Ti is comfortable at 4K with upscaling and native 1440p, while the GeForce RTX 3080 is better matched to 1440p. The GeForce RTX 3090 Ti packs 10,752 CUDA cores versus 8,704 on the GeForce RTX 3080. The GeForce RTX 3090 Ti also has more RT cores (84 vs 68) and more AI cores (336 vs 272), strengthening its ray-tracing and AI-upscaling performance.
Price & Value
Right now the GeForce RTX 3080 starts at $387 GBP against $1,464 GBP for the GeForce RTX 3090 Ti. Despite being slower, the GeForce RTX 3080 offers the better performance-per-dollar (~203% better value), so budget-focused buyers should weigh it carefully. The GeForce RTX 3080 is trading below its $699 GBP MSRP — a genuine deal. The GeForce RTX 3090 Ti is trading below its $1,999 GBP MSRP — a genuine deal.
Power & Efficiency
The GeForce RTX 3080 draws just 320W versus 450W for the GeForce RTX 3090 Ti, and it also delivers more performance per watt — so it runs cooler and quieter and needs less PSU headroom.
VRAM & Future-Proofing
With 24GB against 10GB, the GeForce RTX 3090 Ti has more headroom for 4K textures and memory-hungry creative/AI tasks where the GeForce RTX 3080's 10GB can fall short. The GeForce RTX 3090 Ti's memory is also faster — 1,008 GB/s versus 760 GB/s (384-bit vs 320-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Generation & Longevity
The GeForce RTX 3090 Ti is roughly 2 years newer than the GeForce RTX 3080, so it generally benefits from a more modern architecture and longer driver-support runway.
Which should you buy: GeForce RTX 3080 or GeForce RTX 3090 Ti?
Choose the GeForce RTX 3090 Ti if you want the most performance and can absorb the higher price. If you're optimizing for value, the GeForce RTX 3080 stretches your money further for only slightly lower performance.