[TheEskimo]

Well, the "Featured Systems" tab conveniently lists the GPU. It happens to be a GeForce GTX 645 on the cheap end and a GTX 660 on the high end. A 660 costs roughly $200. In addition, if your 'scientific computing' includes hashing or any of a number of other things, it will be orders of magnitude slower than an AMD card.

Overall, it's slightly overpriced. In addition, OEM hardware is invariably uncustomizable (no extra PCI-E slots, lowest end power supply possible). If you wanted to do scientific computing then there would be much more efficient options. This is no better an option (and probably worse) than other run of the mill OEM hardware. I especially like how your comment began with "I don't know anything about <related topic>. But...".