GPU Price Index and Deals: How racingtech.fr Tracks the Used Market
Buying a used graphics card often means flying blind: the same model can be listed at wildly different prices, and it's hard to tell whether you're getting a bargain or being ripped off. At racingtech.fr, we wanted to answer that question with numbers. The site measures the used market through two free, complementary tools: the GPU price index and the deals section.
The GPU index: a reference price, not a wild guess
What is a used RTX 4070 or RX 6800 actually worth today? The GPU index answers with a reference price built from real listings, not a theoretical estimate. For each model, the site shows the median price seen on Leboncoin over the last 60 days, grouped by family (NVIDIA RTX, AMD Radeon RX…) and by segment.
The index keeps a single, easy-to-read figure: the median asking price — the price at the centre of the listings online for a given model. We use the median rather than an average precisely to shrug off outliers and typos. These are prices seen in listings, not transaction prices: a listing that disappears hasn't necessarily been sold, and we draw no conclusion about any sale.
How the index is calculated
The index is built from graphics card listings published on Leboncoin: their prices are recorded, and we keep the median over a rolling 60-day window. Each price is matched to the GPU model involved, and a model only appears in the index once it has at least three readings, to avoid figures built on a single isolated ad.
The figures also filter out the noise: cards advertised as defective or “for parts” are excluded from the calculation, as are bundles and listings whose price clearly isn't for a single unit. The result is an index that reflects the price of a working card, not a median skewed by dead cards or bundles.
The deals: listings priced well below the index
The index gives you the fair price; the deals section does the opposite job and goes bargain hunting. It surfaces the listings currently online priced clearly below the index for their model. Each ad is compared to the model's index (its median price), and the gap is shown as a percentage: the more negative it is, the better the deal.
But a low price isn't enough on its own: each listing goes through a quality filter that removes bundles, suspicious ads and flagged cards. Only recent listings are kept, each with a direct link to Leboncoin and a location shown at department level (never the full postcode, out of respect for the seller's privacy). As listings change over time, the list reflects what's available right now: it's worth checking when you're actually shopping.
For a sim racer building or upgrading a PC on a tight budget, these two tools are a game changer. The index turns a gut feeling (“that looks expensive”) into an objective call: you know, with numbers to back it up, whether a listing is in line with the market or 30% below it. The deals section, meanwhile, does the sorting for you in Leboncoin's daily flood of ads. All of it without signing up, without intrusive ads, and with hard numbers rather than guesswork. It's exactly the kind of service we wish we'd had before hunting for our own card.
At a glance
ℹ️ Figures recorded on June 17, 2026 — they change over time. Check the GPU index and the deals for up-to-date values.