which mac for photo editing

Started Apr 24, 2013 | Discussions thread
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Johan Borg
Senior MemberPosts: 2,252
Re: 2.9GHz dual i7 vs. 2.3GHz & 2.7GHz quad i7 with Aperture
In reply to Pic Man, May 6, 2013

Pic Man wrote:

Majikthize wrote:

I should note that the difference between #1 and #2 is more than "a little extra clock speed." The i7 processor has "hyperthreading", which creates four virtual cores. It is substantially faster than an i5 processor. That said, I did not test an i5 MBP, so I don't know how big the difference is.

Apparently the i5 does support hyperthreading. Look here. The i5 is 3210m and I think the i7 is 3520m. The i7 according to benchmark is 14% faster but I'm wondering how much difference i'll see in real use.

Yes, it's the quad-core *desktop* models of i7 that offer hyperthreading where the quad-core i5 don't. For laptops, a dual core i5 has the same number of threads as a dual core i7. You need a quad core (15") to gain much more than clock speed.

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