Hier
Are your PC and browser fast enough to handle heavy JavaScript and DHTML scripts? BenchJS will reveal the answer! BenchJS consists of 7 scripts testing the speed-potential of your PC and your browser's JavaScript engine (BenchJS does not measure the overall browser performance)
The test-code for IE5x/6x, NS6x/7x, Firebird 0.7/0.8, Firefox 0.7, Mozilla 1.5/1.6/1.7 and Opera 6x/7x/8x is identical. The test-code for IE4 and NS4 may be slightly different.