Tools · Local hardware
GeForce RTX 3090 (used)
thecontinuitylayer.com/tools/local-hardware/nvidia-geforce-rtx-3090-usedTinkerers who want 24GB of memory for the least money and are fine buying used
GPU (used) · NVIDIA
The RTX 3090 is a 2020 card that is no longer made, but its 24GB of memory keeps it popular for local AI. It is bought second-hand, mostly on eBay.
24GB runs 27–35B models at 4-bit at usable speed, though it is slower than an RTX 4090. Used prices vary widely, so check recent sold listings, test the card, and expect high power draw and heat.
Specs
| Price | varies (used only) |
|---|---|
| Runs | Up to ~32B models at 4-bit; 70B too slow on one card |
| Memory | 24GB GDDR6X |
| Memory bandwidth | 936 GB/s |
| Board power | 350W |
| Interface | PCIe 4.0 x16 |
| Condition | Used only; no maker warranty |
Good for
- Cheapest route to 24GB with CUDA
- Two-card 48GB builds
- 27–32B models
Not for
- Buyers who want a warranty
- Small or quiet PCs
See also
- GeForce RTX 4090 (used) · People who want fast 24GB performance without paying RTX 5090 prices
- AMD Radeon AI PRO R9700 · Linux-comfortable builders who want 32GB on one new card for less than an RTX 5090
- Intel Arc Pro B60 · Budget builders who want 24GB new with a warranty and can handle setup
We last reviewed GeForce RTX 3090 (used) on 31 October 2026. Prices and specs change; check nvidia.com before you buy or sign up. Figures we could not confirm on the vendor's own page read “not published” or “varies”.
Vendor source: https://www.nvidia.com/en-us/geforce/graphics-cards/30-series/rtx-3090-3090ti/