ZBrushCentral

Built new desktop and need suggestions for Zbrush settings...

So I decided to build myself a desktop last weekend and wanted to know what settings to use in Zbrush for ‘Preference/Mem’ or ‘Preference/Performance’ and any other settings etc to get the most out of this software. ^^ How much polygons can I hit with my computer?

My computer specs are

Intel Xeon E3-1230 3.3 Quad Core processor
16 GB of RAM
256 GB SSD RAM
2TB HDD
ASUS GTX 750i graphics card