27" or 21.5" iMac which one should I get?

[Sandman1969]

dual core i5's all support HyperThreading. It's just for ALL Quad Core CPUs, Hyperthreading is reserved for i7's.

Ah yeah, that must be why Intel had the i5 with HT. They just said i5 and the model. I wasn't sure which was which.

Just like the i3s supported it as well.

Not sure how much real world performance is gained by HT anyway. I read in some instances it may actually be slower. But mostly it is faster, but not by leaps and bounds.

 

[thekev]

Ah yeah, that must be why Intel had the i5 with HT. They just said i5 and the model. I wasn't sure which was which.

Just like the i3s supported it as well.

Not sure how much real world performance is gained by HT anyway. I read in some instances it may actually be slower. But mostly it is faster, but not by leaps and bounds.

Intel is weird like that.