GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
The GeForce RTX 4090 is significantly faster than the GeForce RTX 4080, leading by roughly 29% in our performance index.
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GeForce RTX 4090 vs GeForce RTX 4080: In-Depth Breakdown
Performance: GeForce RTX 4090 vs GeForce RTX 4080
The GeForce RTX 4090 is significantly faster, around 29% ahead of the GeForce RTX 4080. That gap is enough to move it up a tier: the GeForce RTX 4090 is comfortable at 4K and high-refresh 1440p, while the GeForce RTX 4080 is better matched to 4K with upscaling and native 1440p.
Power & Efficiency
The GeForce RTX 4080 draws just 320W versus 450W for the GeForce RTX 4090, 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 16GB, the GeForce RTX 4090 has more headroom for 4K textures and memory-hungry creative/AI tasks where the GeForce RTX 4080's 16GB can fall short.
Which should you buy: GeForce RTX 4080 or GeForce RTX 4090?
The GeForce RTX 4090 is the faster card by about 29%. With live pricing limited for this pair, base your decision on the spec differences above — particularly VRAM and power draw — and check current stock before buying.