BareFeats have just published their tests of the new iMac - it shows slightly faster (as expected) CPU benchmarks http://www.barefeats.com/im21.html but considerably better graphics performance http://www.barefeats.com/im21b.html (e.g. 50% better FPS in Doom 3) than the old 20" iMac. And even beats the dual 2.0 GHz PowerMac in a couple of the graphics tests.
And what's more, they say the HD temperature never went above 50 Celsius (130 F) - compared to 89 Celsius (192 F) in the old iMac http://www.barefeats.com/heatsink.html
And what's more, they say the HD temperature never went above 50 Celsius (130 F) - compared to 89 Celsius (192 F) in the old iMac http://www.barefeats.com/heatsink.html