+ 64GB memory + Big Storage + Display
✓ Best MacBook Pro for Photographers / Power Users
+pocket-size 1TB SSD for travel backup + high capacity storage + port connectivity
Batis 25/2 and 85/1.8 shipping mid-July. Pre-order now!
Cache Tile Size Is Critical
Photoshop CS5 ships with its Cache Tile Size default set to 128K. That is not a Good Thing for most users.
Best performance is with 1028K cache tile size. There might be some workloads for which 128K tiles are faster, but certainly not for the photography I do.
Testing cache tile size performance
The graph below shows the results on both the 6-core and 12-core Mac Pro, using the four Cache Tile Sizes. All results after a warmup, so these represent best-case performance on the diglloydMedium benchmark.
Behavior is consistent between the 6-core and 12-core, but relatively worse for the 12-core Mac Pro. Note how much more poorly the 12-core performs than the 6-core, see the details.