GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
On raw speed the GeForce RTX 4080 SUPER comes out dramatically faster — about 44% ahead of the GeForce RTX 3090.
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GeForce RTX 4080 SUPER vs GeForce RTX 3090: In-Depth Breakdown
Performance: GeForce RTX 4080 SUPER vs GeForce RTX 3090
The GeForce RTX 4080 SUPER is dramatically faster, around 44% ahead of the GeForce RTX 3090. That gap is enough to move it up a tier: the GeForce RTX 4080 SUPER is comfortable at 4K with upscaling and native 1440p, while the GeForce RTX 3090 is better matched to 1440p.
Power & Efficiency
At 320W against 350W, the GeForce RTX 4080 SUPER is both the lower-power and the more efficient card, making it the easier build to cool and power. Its more modern Ada Lovelace architecture on a TSMC 4N process is part of why it does more with each watt.
VRAM & Future-Proofing
The GeForce RTX 3090 carries 24GB versus 16GB on the GeForce RTX 4080 SUPER. 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's memory is also faster — 936 GB/s versus 736 GB/s (384-bit vs 256-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Generation & Longevity
The GeForce RTX 4080 SUPER is roughly 4 years newer than the GeForce RTX 3090 (Ada Lovelace vs Ampere), so it generally benefits from a more modern architecture and longer driver-support runway.
Which should you buy: GeForce RTX 3090 or GeForce RTX 4080 SUPER?
The GeForce RTX 4080 SUPER is the faster card by about 44%. 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.