24-inch iMac Core 2 Duo/2.93GHz full review - Page 2

iMac performance

It may sound trite to say that the new iMacs are the fastest iMacs we’ve seen - every new iMac is faster than the previous generation - but there are significant speed gains in this new generation.

Let’s start with the fastest iMac, the 3.06GHz 24-inch iMac; it posted an overall Speedmark score that was 24 points (8 per cent) higher than the previous 24-inch iMac with the same 3.06GHz Core 2 Duo processor (then available as a build-to-order model).

Apple has released four new iMac one 20-inch model and three 24-inch models, with clock speeds from 2.66GHz to 3.06GHz.

The new entry-level iMac, a 2.66GHz 20-inch model, had a Speedmark score that was 26 points higher (11 per cent) than the previous entry-level model, a 2.4GHz 20-inch iMac.

The new 2.66GHz 24-inch iMac doesn’t simply offer a bigger screen, more RAM (4GB versus 2GB), and a larger hard drive (640GB versus 320GB) than the entry-level 2.66GHz 20-inch iMac, which has the same processor speed.

For the extra £250, you get a performance boost, too - the 2.66GHz 24-inch iMac posted a Speedmark score that was 14 points (5 per cent) higher than the 2.66GHz 20-inch model.

There’s a £300 difference between the high-end 3.06GHz iMac and the 2.93GHz iMac. Looking at the Speedmark score, there’s only an 11-point difference (4 per cent) between the two iMacs.

But the key difference between the two is the graphics card; the 3.06GHz iMac has a 512MB Nvidia GeForce GT 130, while the 2.93GHz iMac has a 256MB Nvidia GeForce GT 120.

The 3.06GHz iMac posted 7 more frames per second (11 per cent) than the 2.93GHz iMac in our Call of Duty frame rate test.


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