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GIGABYTE GeForce RTX 4090 GAMING OC 24GB Graphics Card
- Performance
- 98/100 · 4K
- Value
- £26.53 per point
- VRAM
- 24GB
- PSU
- 850W+ · 304mm ref.
- Seller
- alicawanted (100%)
- From
RG24

10 listings in the UK and US · updated 1h ago · US: typical –
9 listings match
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We started recording the typical used RTX 4090 price on 2026-10-28. The chart appears once we have a few days of data.
Not enough price data yet to compare.
| Chip maker | NVIDIA |
| Series | RTX 40 |
| Released | 2022 |
| Video memory | 24GB GDDR6X |
| Board power | 450W |
| Recommended PSU | 850W |
| Power connector (reference) | 12VHPWR (16-pin) |
| Length (reference) | 304mm |
| Thickness (reference) | 3 slots |
| PassMark G3D score | 38,023 |
| Launch price (US) | $1,599 |
On eBay UK the typical asking price for a used RTX 4090 is £2,888 including postage, with most listings between £2,783 and £2,900. That is from 10 current listings, cleaned of faulty cards and parts. The cheapest working one right now is £2,600.
NVIDIA recommends at least a 850W power supply for the RTX 4090, which draws about 450W on its own. It takes 12VHPWR (16-pin). Factory-overclocked partner cards can draw more, so leave some headroom.
The reference RTX 4090 is about 304mm long and 3 slots thick. Many partner cards (ASUS ROG Strix, MSI Suprim, Gigabyte Aorus) are 20-60mm longer, so check your case's maximum GPU length and the exact card model before buying.
Its performance score is 98/100 on our scale (100 = the fastest card we track), which as a rough guide means high settings at 4k. It has 24GB of GDDR6X.
Cards from 2020-2022 were popular with crypto miners. Mining at a steady, undervolted load is not usually what kills a card, but fans and thermal pads wear. Ask the seller how it was used, look for fan noise or high memory temperatures, and prefer a listing that is tested, boxed or still under warranty. We flag listings that mention mining.