I'd like to update a 2010 MacBook Pro 2.6 i7 with Lightroom in mind. I'm not sure if I've found a definitive answer about whether LR (meaning LR 5.5) makes full use of all cores available. Simply put, will LR run twice as fast on a quad-core as a dual? The most sluggish part of LR for me is its drawing of thumbnails and rendering larger or 1:1 views. Am I correct in thinking this is because LR does not make use of the GPU (as, for example, Aperture does to obvious advantage)? In which case there's no point paying extra for a fancy GPU - as far as LR is concerned?
Lightroom uses all cores. You want the fastest CPU you can afford. A faster 4-core is probably better than a slower 6-core.
You want 8 GB of memory, and preferably 16 GB.
Lightroom does not use the GPU, so go for the cheapest one there is (unless you have other programs that need the GPU)
Thanks, useful. I wonder if I've picked up that Photoshop only uses a single core and assumed the same for LR. There's a lot of old info on the web...
Google search seems to indicate that recent versions of Photoshop use multiple cores