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Is my GPU assisting the video decode?

Last response: in Graphics & Displays
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September 16, 2008 12:50:38 PM

Ive just bought a new laptop for uni and it has a x4500mhd IGP and a P8400 CPU, whilst my main rig is uses a Radeon HD3850 512MB and a Q6600. Ive noticed that when I playback a HDDVD on my laptop the cpu usage goes up to something like 50-60% even at relatively low res (1280x800) but when I play the same disk on my main pc i get like 5-15% CPU usage at 1366×768. (Power DVD 7.3 Ultra with clearvideo/avivo enabled)

Clearly the HD3850 is helping with the decode but why is the CPU usage sooooo different? Even in the catalyst control center the GPU never goes over 3% during playback so its barely flexing its muscles.
September 16, 2008 1:45:51 PM

LOL your desktop is better than your notebook.
September 16, 2008 3:34:12 PM

Your Q6600 is superior to the P8400. That's why you get 5-15% CPU usage usage on it compared to the 50-60% CPU usage on the laptop.

Not too sure how big the video card will influence that.
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