Methodology & accuracy
How the FPS estimates and verdicts on doesitrun.com are produced, explained openly, so you know what they are based on and how reliable they are.
What the estimate is based on
- Real system requirements. The basis is each game's stated minimum and recommended requirements, from the Steam store page; if Steam returns nothing, from PCGamingWiki. Games outside Steam (for example League of Legends, VALORANT or World of Warcraft) use the publisher's official requirements. If requirements are missing entirely, they are estimated from the release year, the tags and the other listed parts, and marked "estimated".
- Requirements without a model name. When a game only names a generation ("GTX 10 series", "RDNA 2", "6 cores, Zen 2"), the smallest matching graphics card or a typical processor of that generation is used. Obvious typos and joke values in the specs (such as "1,024 GB RAM") are recognised and not taken literally.
- Performance database. Your graphics card and processor are placed on a table of relative performance scores: more than 750 graphics cards (desktop, laptop and integrated, from current models back to the early 2000s) and over 650 processor models plus all common CPU families, from public benchmark rankings.
- No graphics card? Type "none" and enter your processor: the built-in graphics are worked out from its model number (Intel HD/UHD/Iris/Arc, Radeon Vega and 600M to 800M).
The calculation model
The model weighs graphics and processor performance, video memory (VRAM), system memory, memory type and speed, resolution scaling, CPU limits, upscaling (DLSS/FSR/XeSS, with or without frame generation) and each game's own frame cap. If you say your PC runs hot, throttling is taken into account. Integrated graphics share the system memory and follow a flatter performance curve, calibrated on more than 2,000 notebook measurements. It is not a simple "better or worse" comparison, but a weighted estimate for your resolution and quality level.
Requirements beyond speed
Some games do not start on hardware that would be fast enough. These requirements are read from the specs and checked separately:
- Hardware ray tracing (e.g. Indiana Jones and the Great Circle, DOOM: The Dark Ages): graphics cards without it get "does not run".
- AVX / AVX2 processor instructions (e.g. Far Cry 6, F1 25, Death Stranding): older processors without them get "does not run".
- Graphics API (DirectX 12, Vulkan, OpenGL version): compared with what the last official driver of your graphics card supports.
- TPM 2.0 / Secure Boot (e.g. Battlefield 6) and Resizable BAR for Intel Arc: shown as a note, because they are settings that cannot be checked from here.
In these cases the site shows the reason instead of an FPS number.
Your PC's tier
The badge next to "Your PC" (Beast mode, High roller, Solid rig, Getting by, Potato mode) describes the PC itself, not your library. The same model runs the 100 most played games on Steam right now (only games, no software or demos; the list is refreshed daily, e.g. Counter-Strike 2, Dota 2, PUBG, Cyberpunk 2077, Baldur's Gate 3) with your processor, graphics card and video memory at the resolution and quality you selected, without upscaling. The typical frame rate across them (geometric mean) decides the tier: from 150 FPS Beast mode, from 95 High roller, from 65 Solid rig, from 25 Getting by, below that Potato mode. Less than 16 GB of RAM lowers it, because modern games stutter with too little memory. So a slow processor pulls the tier down just like a slow graphics card. How much of your library runs is shown separately next to it.
Calibration & community
- Checked against real benchmarks. 4,426 measured benchmarks in 138 games from hardware reviews (Notebookcheck, PC Games Hardware, GameGPU, ComputerBase, TechSpot, Tom's Hardware and others) keep the model honest. A game is only corrected when at least 20 data points from one source, or two sources that agree, differ from the model by more than 10 %.
- Fine-tuned by players. FPS measured by real people on many PC configurations are compared with the estimates and improve them over time. You can report yours in any game. ( player measurements so far)
- Fixed from feedback. Reports from players (wrong requirements, odd values, missing hardware) are checked against sources and corrected.
Confidence & limits
- Every number carries a confidence rating (High/Medium/Low), click it to see what it is based on.
- It is an estimate, not a measurement on your PC: drivers, patches, ray tracing, frame caps and background apps can shift real FPS by 15-25 % or more. In online games FPS also vary with the server, the region and the number of players.
- If RAM or VRAM is below the minimum, the FPS number (which only reflects CPU/GPU) is not reliable, and the site says so.
Data sources
Library, wishlist, player counts, requirements and Steam Deck compatibility from the official Steam Web API and store; requirements of games outside Steam from the publishers' official pages; Linux/Deck ratings from ProtonDB; anti-cheat data from GamingOnLinux's list (used with permission); lowest Steam price from IsThereAnyDeal; benchmarks from the hardware reviews named above. Not affiliated with or endorsed by Valve or Steam.