G5 doesn't measure up to Apple's claims in our Logic tests
- The result? Believe it or not, this 1.4 GHz P4 -- a machine running at less than HALF the speed of the Dell machine Apple soundly whupped in its tests -- beats BOTH the single-processor G5s! It supports at least 60 tracks. (In its test, Apple says a 3 GHz Dell manages only 35 tracks, but was using Cubase.)
- "Apple's test results are invalidated by severely lopsided testing conditions," InfoWorld's Tom Yager writes in his Web log. "Among them, Apple used a prototype G5 running its special GNU compiler and an unreleased version of OS X. The Dells used shipping hardware, vanilla GNU compilers and Red Hat 9. None of this would be a problem if Apple and Veritest didn't claim the tests were objective. An apples-to-apples test, so to speak, would require that Dell, like Apple, be allowed to tune its systems and software for best-case performance. Dell's published results on the SPEC site--regarded as the definitive repository for SPEC results--are best-case. They're far better than the results cited by Veritest in the Apple report."
Sure enough, in each of the benchmarks in which Apple claims victory over the Pentium 4- or Xeon-based systems, various Pentium 4, Xeon, and even AMD Athlon XP systems actually beat the G5 routinely when the tested systems have been properly configured, and don't have features turned off.
- And, in our own tests, a Pentium 4 running at a mere 1.4 GHz beat Apple's 1.6GHz and 1.8 GHz single-CPU G5 configurations in multitrack audio playback and effects processing.
We compared Apple's published G5 Performance test results of the Logic audio program to a PC running an identical number of channels, filters and effects in the most recent version of Logic running on a PC. (The most recent version of Logic was tested on the G5.) In our test, a Pentium 4 running at a mere 1.4 GHz -- less than half the speed of the PC Apple tested! -- beat any of Apple's single-CPU G5 configurations, all of which were running at higher clock speeds. These results certainly cast doubt upon Apple's claim to "the world's fastest personal computer." Read more....
