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2017 iMac 5K vs 2015 iMac 5K : Lightroom Import, Generate 1:1 Previews + Lightroom Export Full-Res JPEGs

View iMac 5K at B&H Photo and see also MPG’s computer gear wishlist. Not sure which Mac to get or how to configure it? Consult with MPG.

The 2017 iMac 5K takes the speed crown for import, outrunning an 8 core 3.3 GHz Mac Pro , that is, the fastest 2013 Mac Pro that can be built for Photoshop/Lightroom, but one not available from Apple (Apple sells a 3.0 GHz 8 core).

Which demonstrates just how poorly Adobe uses CPU cores: twice as many cores, each running somewhat more slowly but it is still 8 cores versus four and dual GPUs versus a single GPU.

2017 iMac 5K: Lightroom Import with 1:1 Previews, Export Full-Res JPEG

Apple has done a very nice job of making the 2017 iMac 5K a clear-cut win over the 2015 model, excepting perhaps the small I/O performance of the SSD.

See the MPG review of the 2017 iMac 5K .

2017 iMac 5K vs others: Lightroom export 52 to full-res high quality JPEG
2017 iMac 5K vs others: Lightroom mport 156 raw files and generate 1:1 previews
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