First XBench results for dual cores

[BevvyB]

Testresults Xbench 1.2

We have compared the new G5 DualCore 2.0GHz and 2.3GHz with a old watercooled G5 dual 2.5GHz. The dual 2.5GHz was equipped with a GeForce 6800 Ultra graphics card, not standard equipment. The DualCore 2.0 had a two-drive RAID-0 volume so the disk test is better than normal.

CPU Test:
2.3 Dualcore: 114,32
2.0 Dualcore: 101,55
2.5 Dual: 122,25

Thread test:
2.3 Dualcore: 113,74
2.0 Dualcore: 96,91
2.5 Dual: 125,90

Memory test:
2.3 Dualcore: 121,99
2.0 Dualcore: 110,32
2.5 Dual: 103,73

Quartz graphics:
2.3 Dualcore: 126,64
2.0 Dualcore: 107,07
2.5 Dual: 125,76

Open GL:
2.3 Dualcore: 135,38
2.0 Dualcore: 113,27
2.5 Dual: 125,63

User Interface:
2.3 Dualcore: 121,58
2.0 Dualcore: 118,98
2.5 Dual: 99,94

Disk Test:
2.3 Dualcore: 66,0
2.0 Dualcore 82,3 (2st harddrives RAID-1)
2.5 Dual: 69,3

TOTALS:
2.3 Dualcore: 108,7 (winner!)
2.0 Dualcore: 103,1
2.5 Dual: 105,9

As you can see the 2.3 GHz Dual Core machine is marginally faster than a water-cooled 2.5GHz Dual G5 with a souped-up graphics card. The largest difference is in memory performance, not in the actual processors according to our tests with Xbench. We want to point out that this testing method isn't completely failsafe but should mostly be seen as a hint of the new machine's performance.

Conclusion
The Power Macintosh G5 is better than ever and this is likely the last major update that we will see before the transition to Intel- processors. Apple has polished the details and the new processors gives some extra power. Because the exterior is largely exchanged this feels more like a "speedbump" even if the processor-switch is more significant than that.

Performance-wise, one Dual Core processor doesn't make for a large difference compared to two old G5 processors. We predict that the new Quad 2.5GHz Powermac will make for a performance increase of 70% or more.

Source: http://media.99mac.se/g5_dualcore/