Test HTML 5 vs Flash

Mac Tests

With Safari, HTML5 was the most efficient and consumed less CPU than Flash using only 12.39% CPU. With Flash 10.0, CPU utilization was at 37.41% and with Flash 10.1, it dropped to 32.07%

With Google Chrome, Flash and HTML5 were both equally inefficient (both are around 50%)

With Firefox, Flash was only slightly less efficient than in Safari, but better than in Chrome

Windows Tests

Safari wouldn’t play HTML5 videos, so there was no way to test that. However, Flash 10.0 used 23.22% CPU but Flash 10.1 only used 7.43% CPU

Google Chrome was more efficient on Windows than Mac. Playback with Flash Player 10.0 was about 24% more efficient than HTML5, while Flash Player 10.1 was 58% more efficient than HTML5.

On Firefox, Flash 10.1 dropped CPU utilization to 6% from 22% in Flash 10.0

In IE8, Flash 10.0 used 22.41% CPU and Flash 10.1 used 14.62% CPU

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