latterly , Apple denote two newfangled , faster iBooks and one novel , deadening Power Mac G5 . The Speedmark resolution are in and we ’d like to share them with you while we continue to work on the full review .
As look , the new 12 - inch 1.2 gigahertz G4 iBook sour in number like to the 14 - inch 1.2GHz G4 iBook we screen back in April of this year and the 10 per centum hump to 1.33GHz for the new 14 - inch iBook nudged performance up about as much you ’d anticipate .
The new Power Mac results were a chip more interesting . Aside from CPU tally , the new undivided 1.8GHz G5 Power Mac contribution most of the Dual 1.8GHz G5 Power Mac ’s specifications , the exclusion being a slower frontside motorbus speeding . The frontside motorcoach connects the processor to the system controller . On the individual mainframe system , the bus amphetamine is 600MHz , the same as the 1.8GHz G5 iMac . await at the benchmark results you ’ll see that the new single processor 1.8GHz Power Mac ’s execution is correct in line with the 1.8GHz G5 iMac .
This is not the first time that Apple has offer a undivided 1.8GHz Power Mac . The previous mannikin , at the time a higher death organization , came with a 900MHz frontside bus , a larger gruelling drive , twice the RAM , and a price tag $ 900 mellow than the current model .
In an attempt to try and set apart the frontside busbar and processor , we took the drive and graphics bill of fare out of the new individual 1.8 organization and install them into the former , faster bus 1.8 . ( observe : We test all system with 512 MB of RAM . ) In these test , the older , faster motorbus system vanquish the new system in every task , though not by a wide margin . The dispute in organisation speed really showed up in the Compressor MPEG2 encode test with the 900MHz busbar system finish up the task nearly 30 per centum faster than than 600MHz bus system .
The subject matter here is not about value ; the new Power Mac , at $ 1499 , is in spades a bargain . But it does appear that , when it comes to frontside motorcoach focal ratio , megahertz does indeed count .
