How Fast is Your Browser? Take a Test (from 2010)

I get 60+ for both

    chromium (Version 27.0.1453.93 Built from source for Fedora release 19) with  Hardware acceleration disabled 
    Firefox (25.0-3.fc19.x86_64) with GPU Accelerated Windows: 0/1 Basic.

System: Dual Graphic:

    00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
    Subsystem: Hewlett-Packard Company Device 1688
    Kernel driver in use: i915
    --
    01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Whistler [Radeon HD 6630M/6650M/6750M/7670M/7690M]
    Subsystem: Hewlett-Packard Company Radeon HD 6750M
    Kernel driver in use: radeon

edit: formatting.

The "more details" link goes to a blog post from September 2010, so I suspect the test has been around for a while, but it was still interesting to see that for me (Linux, nVidia 560Ti, 319 proprietary driver), Firefox reported 60+ fps while Chrome reported 24 fps.