[conkrete]

On my currently laptop I only pull about 5fps when viewing this. Indeed cool, but the OPs (albeit more simple) runs at a solid 60fps

[davesque]

Runs at 60fps on latest Chrome for me. I'm on a retina macbook pro 15".

[voltagex_]

3fps here on what should be a beefy i7 with a relatively recent integrated GPU. Anyone want to comment on what the bottleneck is?

[nopjia]

CPU has little to do with it, since most of the heavy lifting is done by the GPU. Maybe that integrated chip isn't enough.

[nness]

It does depend whether the particles are drawn using shaders or the simpler canvas drawing commands. Without shaders, it would be very CPU intensive. However this site has definitely taken the shader approach.

[msl09]

yeah iamnop crashes my firefox

[cookiecaper]

Runs at near-60 FPS in Firefox for me. Using Linux and Firefox 37.

[msl09]

Firefox 31 from the debian wheezy package

[ChristianGeek]

Close to 60fps in Chrome 41 on my 2014 MBP.