HotHardware.com posted a review on Dell's XPS 710 H2C Performance Gaming System

The Dell XPS 710 H2C Edition is billed as a top-of-the-line ultra-performance machine built with the most hardcore of gamers in mind, a niche that Alienware is very familiar with. Not only does the XPS 710 H2C hold the distinction of being Dell's first non-limited edition factory overclocked computer, it also uses Dell's first in-house liquid cooling system to keep it's quad-core power plant cool. The XPS 710 H2C is the most heavily performance-specified XPS system yet, with an Intel Core 2 QX6700 processor, dual GeForce 8800 GTXs, 4 GB of RAM and two Western Digital Raptors in a RAID 0 array, as standard equipment. We recently got our hands on one and we've been putting it through its paces, as it ripped through the benchmarks in our labs.

Dell's XPS 710 H2C Performance Gaming System - Evaluation