Detect Graphics card performance - JS

Question

This is a longshot - is there anyway to detect poor vs strong graphics card performance via a JS plugin?

We have built a parallax site for a client, it stutters on lower

Answer 1

Firefox has a build in list of graphic cards which are not supported: https://wiki.mozilla.org/Blocklisting/Blocked_Graphics_Drivers the related help acrticle.

But you only can indirectly test them when accessing WebGL features...

http://get.webgl.org/troubleshooting/ leads you to the corresponding browser provider when there are problems. When checking the JS code you will see that they test via

if (window.WebGLRenderingContext) {
    alert('Your browser does not support WebGL');
}

if you have an up to date graphic card.