Offscreen benchmarks just mean that they are run at a fixed resolution and not limited by vsync. These benchmarks are better for comparing one GPU to another. O

Offscreen benchmarks just mean that they are run at a fixed resolution and not limited by vsync. These benchmarks are better for comparing one GPU to another. Onscreen can be artificially limited to 60fps and/or run at the native resolution of the device which can hugely skew the results (A laptop might show double the benchmark speed just because it has a garbage 1366x768 display).