For this test we can both MPEG-2 and MPEG-4 movies on the system for the full length and use throttle watch in order to monitor CPU utilisation. We then calculated the average CPU usage readings from this.
- MPEG-2 AVI Playback
For this test we ran a MPEG-2 custom movie of a 4WD trip I filmed a month back that was compressed into MPEG-2 quality. Movie length was one hour.
Here we see that the CPU usage of both is low due to the hardware MPEG-2 decoder built into both chipsets and hence results in smooth playback.
MPEG-2 DVD Playback
MEPG-2 DVD playback was the same movie again, only this time converted to DVD and played back on a Slim Notebook CD drive to determine what, if any, changes have happened.
Here the EPIA SP gets slightly ahead, possibly due to the newer Southbridge being used.
For our MPEG-4 tests the same movie was once again played back only this time using the DIVX 5.2 compression codec.
This is where the EPIA SP shines. The EPIA MII relies on the CPU in order to decode the MPEG-4 video and audio streams, where the EPIA SP's Northbridge graphics has a hardware MPEG-4 accelerator built in, taking the strain off the CPU.