Hope to get some advice here, as a Leica M9-P shooter working off a base model (2011) Mac Mini with 8GB RAM. I find that Aperture is a bit sluggish on this machine, taking ~ 3-4 seconds to display a RAW image when browsing through and significantly longer to apply RAW adjustments and to use Silver Efex etc.
I also have the Apple Keyboard / Mouse and Thunderbolt Display.
I am considering an upgrade, in order to make Aperture more responsive and reduce the downtime when post-processing.
The options I am considering are:
1) Mac Mini 2.7GhZ (i7 Dual Core) with 8GB RAM. This is the model with the discrete GPU.
2) Mac Mini (Server, i7 Quad Core) again with 8GB RAM. This model although having a better CPU, reverts back to the same Intel integrated GPU that I have at the moment.
3) Base model iMac 21.5" connected to the Thunderbolt Display. Core i5 Quad Core and Discrete GPU.
All will approximate to a similar price +/- $100-$200
Between the Minis, which one would give Aperture more of a performance boost? The Quad Core i7 with Intel GPU or the i7 Dual Core with the AMD GPU? In the GeekBench ratings, the Quad seems to come in very high (~9000) while the Dual lags behind (~6000). I understand that Aperture likes a discrete GPU, but the CPU jump is quite significant.
Or would you go for the iMac, despite having a slower CPU (i5)?
Any feedback would be much appreciated, as I am really struggling with this one!