Basically you get the performance of a dd3 gt 650 on a much premium Carbon Fiber/Magnesium Alloy Sony Vaio S notebook on a 13.3" 1600x900 display that's matte that is perfect on the go vs a small 11.6" and 720p display that's super glossy.
the clevo uses the 650m ddr3 so the overclocked 640m LE will give the same performance.
I would personally pick the sony over the clevo, it's a more reliable brand, better screen, slimmer, very portable, low temps, longer battery life with similar, if not the same performance as the clevo w110er. In my opinion its the perfect laptop for uni. It will definitely be more than enuogh for your gaming needs.