You're probably better off with alienware for processing power and hardcore specs, unless you're doing CAD and need the certified drivers/hardware. Workstation model laptops have a huge markup, and gaming models often meet or beat their specs for less.

I don't see a 32GB XPS on their site.

Dell XPS 13" (9350) goes up to 16GB - soldered on, not upgradable.

Dell XPS 15" (9550) goes up to 32GB - upgradable after purchase with 2x memory slots.

e:

Links for the 15" with 32GB:

Dell Australia: http://www.dell.com/au/p/xps-15-9550-laptop/pd?oc=z510896au&...

Dell USA: http://www.dell.com/en-us/shop/productdetails/xps-15-9550-la...

I have to had a TrackPoint (so no Dell for me), and I like smaller, 13 inches laptop. From what I have found, 16 GB is the maximum that exists.

Some Dell models do have trackpoints. for example, http://www.dell.com/us/business/p/latitude-e5570-laptop/pd