2x NVIDIA GeForce RTX 4090

Compare 2x NVIDIA GeForce RTX 4090 against another machine in the Arena

Reference: GeForce RTX 40 series on Wikipedia

Class
Multi-GPU
Memory
48 GB GDDR6X
Runs (Q4_K_M)
—
Bandwidth
1008 GB/s
TDP
900 W
Released
2022-10-12
Price (US)
$5000 used as of 2026-08
Sourcing and disambiguation notes

Bandwidth is per card (1008 GB/s, NVIDIA spec). TDP summed at stock 450W/card. Price is 2x the Aug-2026 ~$2500 "fair asking range" figure from the source (based on 15 eBay listings). No actual pair-bundle listing exists for two RTX 4090s at a normal market (non-bulk-lot) price -- this figure is CALCULATED as 2x the single-card used price ($2,500, resaleprices.com, 2026-08-22), not an independently sourced pair price. New left null since the single-card new figure is itself weakly sourced (see the rtx-4090 entry's note), which would only compound the uncertainty if doubled.

Specification sources

Measurements

Decode is token generation — the speed you feel while an answer streams. Prefill is prompt processing — the wait before it starts. Why bandwidth predicts decode speed.

What verified, single-source and estimated mean, and the same rows with every filter and sort in the benchmarks explorer.

Speed over time

What it can run

Fit is arithmetic, not a measurement — how it is computed. Against 48 GB; models that fit are listed largest first.