2x NVIDIA GeForce RTX 3090

Compare 2x NVIDIA GeForce RTX 3090 against another machine in the Arena

Class
Multi-GPU
Memory
48 GB GDDR6X
Runs (Q4_K_M)
Bandwidth
936 GB/s
TDP
700 W
Released
2020-09-24
Price (US)
$2548 used as of 2026-08
Sourcing and disambiguation notes

Bandwidth is per card (936.2 GB/s, NVIDIA spec): a layer-split model reads from one card at a time, so decode speed tracks a single card's bandwidth, not the sum. TDP summed at stock 350W/card; the source rig this hardware id is benchmarked against ran both cards at a 115% power limit (up to ~805W combined) to chase throughput. Price is 2x the Jan-2026 ~$800 used-eBay figure from the source. 2026-08 update: recalculated as 2x the current $1,274 single-card used price (resaleprices.com), superseding the Jan-2026 $1,600 estimate previously recorded. No actual two-card pair listing was found (one anecdotal $650 eBay story describes a lucky mispriced Dell OEM pair, not a market rate) -- this figure is CALCULATED, not an independently sourced pair price. New stays null since the single-card new price is also null (discontinued).

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.