With Photoshop CS4/CS5, there is also increased overhead with 8 cores due to CS5 implementation weakness it’s just not very smart about knowing how many threads are useful, so it wastes time and memory allocating too many threads for tasks that won’t even benefit from them. So realistically, using 5 cores at 2.93Ghz is about the same as 4 cores on the 3.33GHz. Thus, on the 8 core model, 4.5 cores must be utilized just to achieve the same performance, and that ignores the overhead of more CPU cores, software limitations, etc. The 3.33Ghz model has a 13% clock-speed advantage over the 8-core 2.93GHz. The 8-core model is not available at 3.33GHz, but a quad-core model is available. The fastest 8-core Mac Pro to be had as of May 2010 is the Mac Pro Nehalem 2.93GHz (see the in-depth review). This special report takes a photographer’s viewpoint on the Apple Mac Pro, asking whether eight cores is really better than four. Send Feedback Related: hard drive, Mac Pro, memory, RAID, SSDĪ Mac Pro is expensive enough to begin with, but paying more for the same performance is silly.
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