How it works

CARDMARK gives your device one simple, precise task: shuffle a full deck of 52 cards, again and again, for exactly one second, using all of its processor cores at the same time.

The score is the number of complete shuffles finished in that second. A higher number means a faster device. Every phone runs exactly the same code, so scores can be compared directly.

To be fair to every phone, the test measures three seconds in a row and keeps the best one: a notification or an app working in the background cannot spoil your score.

First the test wakes the cores up for a moment, then it measures. Battery level, temperature and apps open in the background can change the result a little: for the fairest score, close other apps and run it again.

Only the model, the number of cores and the score are saved, never anything about you. The average of each model comes from all the tests run on it, all over the world.

Every new test makes the leaderboard more accurate. Share CARDMARK with your friends and find out whose phone is faster.

About

Hi, I'm Danilo Orfeo. I'm a guy full of ideas and projects. The ones I work on every day are long-term, though, and life doesn't always wait: my car's engine suddenly broke down, and I need to raise a few thousand euros fast.

So I did what I do best: launch crazy ideas. I created CARDMARK, the fastest and clearest benchmark in the world. It isn't revolutionary and it isn't the most precise. It's transparent: in one second it tells you how fast your smartphone is, in a way anyone can understand (and maybe smile at).

If you like the idea, if you want to help me, or for anything at all (a collaboration, a sponsorship, an idea), write to me: I answer everyone. And if you feel like it, share it: that already helps a lot.

[email protected]

— Danilo Orfeo