Two cards, too many variables

Mon, 31 Aug 2026 00:00:00 +0000

In April I rented a machine with two RTX 3090s on Vast.ai, to see what a second card would buy me before paying for one. On the first benchmark, two cards were 21 times slower per token than one. My write-up that day ended with “Don’t buy a 2nd 3090 for the local rig right now.”

Benchmarking on /sys/admin/blog

Two cards, too many variables