FPS Calculator for PC Games

Pick your hardware and a game to see estimated FPS

What is this tool

You put in your CPU, GPU, pick a resolution and game. It tells you roughly how many frames per second you will get. The numbers come from benchmark tests, about 250k of them. Not perfect but close enough to know if a game will run smooth or not.

Most estimates land within 10-15% of what you would actually see. Could be higher, could be lower. Drivers matter. Background apps matter. How hot your PC gets matters. But for planning a build or checking if you can run something, it works.

How much FPS do you need

Depends what you are playing.

Shooters like CS2 or Valorant, you want as much as possible. 144 minimum if you are trying to compete. The pros run 240Hz monitors and want 300+ fps because less input lag means faster reactions. You can feel the difference.

Single player stuff like Elden Ring or Cyberpunk, 60 is fine. You are not in a gunfight where milliseconds matter. Spend that GPU power on making things look pretty instead.

Strategy games, city builders, that kind of thing. Even 30-40 works. You are clicking menus not tracking headshots.

The 1% low thing

Average fps can be misleading. Your counter says 90 fps, cool. But when 10 enemies spawn at once it drops to 25 for a second. That second feels like garbage. Your screen stutters, you miss the shot, you die mad.

1% low shows those bad moments. Its basically what fps do you get when things get rough. If your 1% low is under 60, you will notice stuttering even if average looks good. Try lowering settings until that number comes up.

CPU or GPU, which matters more

At 1080p the CPU matters more than people think. Your graphics card can push frames faster than most CPUs can keep up with. Pairing an RTX 4090 with some old i5 is throwing money away.

At 4K its the opposite. Now the GPU has way more pixels to deal with and the CPU sits there waiting. Even a midrange CPU wont bottleneck much at 4K.

1440p is in between. Both matter roughly equally.

Checking for bottlenecks

Run a game, open task manager or afterburner. Look at GPU usage and CPU usage.

GPU under 90% while CPU is maxed at 100% means CPU bottleneck. Your graphics card is sitting around bored.

GPU at 99% and CPU at like 50% means GPU bottleneck. Normal and fine. Means your GPU is doing all it can.

Small bottlenecks dont matter much. Every PC has one somewhere. Only worry about it if you are not hitting your fps target.

Resolution and fps

More pixels means less fps. Always.

1080p is about 2 million pixels. 4K is about 8 million. Thats 4x more work for your GPU every single frame. If you get 120 fps at 1080p expect maybe 50-60 at 4K with same settings.

DLSS and FSR

These render the game at lower resolution then use AI to make it look like the higher res. Sounds like it wouldnt work but it actually does.

DLSS Quality on a 4K monitor actually renders at like 1440p internally. You get 1440p performance but almost 4K looks. Can be 40-70% more fps basically free.

This calculator shows native fps without upscaling. If your game has DLSS or FSR add like 50% to the number mentally.

DLSS needs RTX cards. FSR works on anything including nvidia and even consoles.

RAM stuff

RAM speed helps but not a ton. Maybe 5-10% difference between slow and fast memory. Ryzen chips care more about ram speed than Intel because of how the architecture works.

16GB at 3200mhz handles basically everything in 2025. 32GB helps if you mod games heavily or have a million chrome tabs open while gaming.

Laptops

Laptop GPUs are slower than desktop ones with the same name. An RTX 4070 in a laptop is not the same as a desktop 4070. Less cooling, lower power limits, runs slower to not melt.

Expect 15-30% less performance from laptop hardware. If using this calculator for a laptop, pick the desktop equivalent and subtract about 20% from whatever number you get.

FAQ

How accurate is this

Within 10-15% usually. Real fps depends on drivers, background stuff, thermals, game patches. Good for planning not exact predictions.

My friend has same hardware but different fps

Ton of things affect it. Driver version, windows settings, ram speed, cooling, case airflow, config files. Two same systems can easily be 15-20% different.

Upgrade CPU or GPU first

Check what bottlenecks you. GPU usage low while CPU maxed, upgrade CPU. GPU maxed, upgrade GPU. At 1080p CPU upgrades help more usually. At 4K GPU matters more.

Some games run way worse than others why

Optimization varies a lot. Some games are coded well, others are held together with tape. Cyberpunk murders hardware. Valorant runs on anything. The calculator uses per-game benchmark data to account for this.

Is 60 fps actually enough

For single player yes. People played at 30 fps for years and had fun. 60 feels smooth for exploration and story games. Competitive multiplayer is different, lower input lag gives real advantages there.

My hardware isnt listed

Pick something close. GTX 1080 performs similar to RTX 2070. Ryzen 5 3600 is close to i5-10400. Google your card vs listed card benchmark to find equivalents.

Does ray tracing kill fps

Yeah pretty much. 30-50% fps hit depending on game and settings. DLSS or FSR can make up for it mostly. Without upscaling ray tracing is mainly for high end cards at lower resolutions.

How often does data update

New benchmarks added with major game patches, driver releases, new hardware. Current data is from December 2025 including RTX 50 series and RX 9000 series.

Can i use this to plan a build

Yes thats kind of the point. Try different CPU GPU combos, see what hits your target fps. Compare a 300 dollar cpu vs 500 dollar one to see if it matters for your games. Test before you buy.

Why fps drops in big fights

More characters, more particles, more physics. CPU and GPU both work harder. If 1% lows are way below average this is why. Lower crowd density or particle settings if it bugs you.