Versus Engine
Nvidia GeForce RTX 3090 (Usada) vs Nvidia GeForce RTX 5090 (32GB)
Specs, price and the one trade-off that actually decides it — Nvidia GeForce RTX 3090 (Usada) against Nvidia GeForce RTX 5090 (32GB), side by side.
Cheaper to start
Nvidia GeForce RTX 3090 (Usada)
Starts about $1,399 lower.
Rated higher
Nvidia GeForce RTX 5090 (32GB)
9.7 vs 8.5 on our design scale.
Standout
Nvidia GeForce RTX 3090 (Usada)
24GB VRAM at roughly $600 — unmatched cost per gigabyte
Nvidia GeForce RTX 3090 (Usada)
The second-hand market's favourite: 24GB of VRAM around $600, and the basis of most cheap multi-GPU rigs.
Where it wins, where it doesn't
Pros
- 24GB VRAM at roughly $600 — unmatched cost per gigabyte
- Pairs well for multi-GPU rigs (72GB across three cards)
- Mature, well-understood CUDA support
Cons
- No warranty and unknown usage history
- High power draw that compounds across multiple cards
- Two generations behind on compute and efficiency
Specifications
- memory—
- cuda_cores—
- memory_bus—
- architecture—
- recommended_psu—
- memory_bandwidth—
- total_graphics_power—
Nvidia GeForce RTX 5090 (32GB)
The fastest consumer card available, with 32GB of GDDR7 — and the power bill to match.
Where it wins, where it doesn't
Pros
- 32GB GDDR7 — runs 70B-class models quantised on a single card
- Fastest consumer silicon available
- Avoids the complexity of a multi-GPU build
Cons
- Roughly double the 5080's price for far less than double the performance
- 600W-class power delivery dictates case and PSU choices
- Poor value for anything that is not memory-bound
Specifications
- memory32GB GDDR7
- cuda_cores21760
- memory_bus512-bit
- architectureBlackwell
- recommended_psu1000W
- memory_bandwidth1792 GB/s
- total_graphics_power575W