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| 08-03-09 / 18:55 : iMac Intel / G4 : few progress in 6 years ? (cjed) |
| The site primatelabs provides benchs of new imacs (processors and memory tests only). By comparing these with previous mac mini tests, it appears that the latest high end iMac is about 5 times faster than a 1,25 Ghz G4, for twice cores (and twice cores frequency). Intel processors's frequency only grew a little these last 6 years, and performance gains are more tied with cores count than with the new architecture (until the new Corei7/Nehalem, G4's Altivec - that has been unveiled 10 years ago - was still more powerfull than SSE). Recent graphics cards are far more powerful, but an old Radeon 9000 Pro (with 64Mb of dedicated memory) could still be faster than an Intel integrated GMX chipset (shared memory), hopefully just replaced by the Nvidia 9400M chipset (5 times faster). We can find a Radeon 9600 Pro Mac & PC Edition as an upgrade for G4s 4x AGP slot (that card doesn't require a fan), at 200$ however (the 9800, far more powerfull, required a fan and finally faced heat problems) ! We have then entered a disposable computer market, so we should get either the chipest mac mini or a Mac Pro (Nehalem's new QuickPath bus is now on par with old G5s HyperTransport technology). |
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