GeForce RTX 4090 (used)
thecontinuitylayer.com/tools/local-hardware/nvidia-geforce-rtx-4090-usedPeople who want fast 24GB performance without paying RTX 5090 prices
GPU (used) · NVIDIA
The RTX 4090 was NVIDIA's 2022 flagship and is now mainly sold used. It has 24GB of memory and is much faster than an RTX 3090 on the same models.
It handles 27–32B models quickly and is a strong card for image generation. Used prices vary widely, which can narrow its value lead over a 3090. It is large and power-hungry; check the power connector on any used card.
Specs
| Price | varies (mostly used) |
|---|---|
| Runs | Up to ~32B models at 4–8-bit; 70B too slow on one card |
| Memory | 24GB GDDR6X |
| Memory bandwidth | 1,008 GB/s |
| Board power | 450W |
| Interface | PCIe 4.0 |
| Condition | Mostly used; warranty varies |
Good for
- Fast 24GB inference
- Image generation
- Mixed gaming and AI use
Not for
- Value-first buyers (a 3090 fits the same models)
- Models above ~35B
See also
- 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
- Mac mini (M5 Pro) · Mac users who want a small, silent box for mid-size local models
We last reviewed GeForce RTX 4090 (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/40-series/rtx-4090/