Apple’s latest dual-processor G5 had no problem besting the dual-2.5GHz Power Mac G5 in Macworld Lab’s benchmark testing of the newly released top-of-the-line Power Mac. But in a surprise result, the new mid-level 2.3GHz model edged out the older 2.5GHz system in our overall Speedmark suite.
The strong results for the dual-2.7GHz Power Mac G5 shouldn’t come as a surprise—it does feature the fastest processor ever to ship with a Mac. It turned in the best performance in all but one of our tests.
More surprising was the dual-2.3GHz system’s performance. Not only did it approach the older dual-2.5GHz Power Mac G5’s times, the slower processors in the new desktop didn’t stop it from barely beating the previous champ in our overall Speedmark suite. The reason? The dual-2.3GHz Power Mac’s speedier 250GB hard drive.
The one test result that puzzles us is the top-of-the-line dual-2.7GHz model’s Unreal Tournament 2004 score. With 256MB of video memory, we expect the ATI Radeon 9650 to beat the older 128MB Radeon 9600 XT found in the dual-2.5GHz system. But even after removing the 9600XT from the dual 2.5GHz Power Mac and installing it in the new system, the older card still bested the new one, even at higher resolutions.
Power Mac G5 Benchmarks
|SpeedMark 4||Cinema4D 9.1||iMovie HD Render||iTunes 4.7 MP3 Encode||Photoshop CS2 Suite||Unreal Tournament 2004||Compressor MPEG2 Encode|
|Power Mac G5 Dual 2.7GHz||250||1:02||0:25||0:52||0:53||49||3:52|
|Power Mac G5 Dual 2.3GHz||226||1:13||0:35||0:58||0:59||40||4:24|
|Power Mac G5 Dual 2.0GHz||205||1:24||0:29||1:08||1:06||38||4:46|
|Power MacG5 Dual 2.5GHz||225||1:08||0:36||0:54||0:56||52||4:19|
|Power MacG5 Dual 2.0GHz (old)||196||1:25||0:38||1:07||1:23||39||4:59|
|Power MacG5 1.8GHz||160||3:06||0:40||1:49||1:33||27||10:04|
Best results in bold.
Systems in italics are no longer in the product line. Included only for reference.
We’ll continue looking into this, with details coming when we publish the full review.