Updated from 3x3090(2x3090, 1x3090TI) to 2x5090

A user upgraded their homelab server from 3x RTX 3090s (2x 3090, 1x 3090TI) to 2x RTX 5090s, noting a significant speed increase due to speculative decoding and NVFP4 support. They purchased two prebuilt PCs for $6.4k each to acquire the 5090s, which were priced at $7.5k individually. The user plans to sell the 3090s for an estimated $2k each, hoping to recoup about $9k, making the net cost of the 5090s around $6k after taxes.

This report offers a rare, detailed account of a homelab upgrade from RTX 3090s to 5090s, including cost analysis and performance gains from NVFP4 and speculative decoding.