Shuttle SB77G5 - i875 LGA775 Socketed XPC
3DMark05 CPU and Windows Media Encoder
We continued our testing with a video encoding benchmark using, Windows Media Encoder 9. In the WME 9 test, we took a 416MB video file and encoded it into WMV9 format. Times were recorded in Minutes : Seconds, with lower times indicating better performance.
The memory bandwidth advantage that the two i925XE systems have, seems to garnered them a 10 second advantage, in round numbers, in this test. The high clock speed of the P4 560, combined with the robust memory bandwidth of DDR2 allowed the i925XE board to take the lead and Shuttle's SB77G5 brought rear. In actuality, the i875 based SB77G5 is about 7% slower in this test, versus a similarly equipped i925XE test system.
Again, we're back with more of a synthetic benchmark analysis. 3DMark05's CPU test module gives us an idea of how these systems will perform in a DirectX gaming environment, with the main emphasis of the test focused on CPU throughput and overall system bandwidth. This test consists of two different 3D scenes that are generated with a software renderer, which is dependant on the host CPU's performance. This means that the calculations normally reserved for your 3D accelerator, are instead sent to the central processor. The number of frames generated per second in each test, are used to determine the final score.
Once again we see our three test systems all right on top of each other, in terms of relative performance in this test. The P4 560 / i925XE combination has a 2% lead over the others, including the Shuttle SB77G5, which is obviously an inconsequential advantage.
Perhaps a few different gaming scenarios will show some spread in the field performance picture here. Let's have a look at those next.