The difference between the i5 and i7 iMacs and the older C2D iMacs is that the i5/i7 models use quad core processors from a much newer architecture then C2D (dual-core). You can tell by going into System Profiler and looking at the processor.
Yeah, you can think like it is:Is the i3 the new Celeron?
the difference is bragging rights to say you have the i7!
iMacs didn't before the last update. All 32nm CPUs are dual-core for now but Gulftown is coming in few weeks and it's six-core and Lynnfield might go 32nm later on this year. Maybe Intel had problems making a 32nm quad core CPU so they decided to kept all consumer CPUs dual core and gave Hyper-Threading a try as well or something like that.I was surprised to find all the mobile i5 chips are dual core. I didn't know the iMac uses the desktop version.
I agree, really?
So then put a SSD in the optical bay?But the bottleneck with this machine is the HD. Yes it is 1TB 7'000 rpm etc etc, but it is the slowest thing on the machine. Using Aperture 3 or iMovie, one does wait for the HD quite often to react. Unfortunately, the new iMacs have a new thermal heat sensor plugged in to the HD, which makes it very difficult to uppgrade to SSD or "non" compatible HD's.
I think not. There aren't many games that supports quad-core so I doubt they support HT yet. New games supports quad-core though and I think in future they support HT as well. Game industry is always little behind other software industryIs Hyper threading useful for new games? Or is not supported there either?
I checked this out after you replied, you're right, and there's even a lot of articles on the net about games performing Worse with HT turned on (due to some sort of latency).I think not. There aren't many games that supports quad-core so I doubt they support HT yet. New games supports quad-core though and I think in future they support HT as well. Game industry is always little behind other software industry