GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
The GeForce RTX 5090 is significantly faster than the GeForce RTX 4090, leading by roughly 33% in our performance index.
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GeForce RTX 5090 vs GeForce RTX 4090: In-Depth Breakdown
Performance: GeForce RTX 5090 vs GeForce RTX 4090
The GeForce RTX 5090 is significantly faster, around 33% ahead of the GeForce RTX 4090. Both cards sit in the same broad class, well suited to 4K and high-refresh 1440p. The GeForce RTX 5090 packs 21,760 CUDA cores versus 16,384 on the GeForce RTX 4090.
Power & Efficiency
The GeForce RTX 4090 pulls less power (450W vs 575W), so it's the easier card to cool and the lighter load on your PSU. The faster GeForce RTX 5090 draws more overall but extracts more performance from each watt — plan for a sturdier power supply if you pick it. Its more modern Blackwell architecture on a TSMC 4N process is part of why it does more with each watt.
VRAM & Future-Proofing
With 32GB against 24GB, the GeForce RTX 5090 has more headroom for 4K textures and memory-hungry creative/AI tasks where the GeForce RTX 4090's 24GB can fall short. The GeForce RTX 5090's memory is also faster — 1,792 GB/s versus 1,008 GB/s (512-bit vs 384-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Generation & Longevity
The GeForce RTX 5090 is roughly 3 years newer than the GeForce RTX 4090 (Blackwell vs Ada Lovelace), so it generally benefits from a more modern architecture and longer driver-support runway.
Which should you buy: GeForce RTX 4090 or GeForce RTX 5090?
The GeForce RTX 5090 is the faster card by about 33%. 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.