The aforementioned gaming XPS 630’s SLI-rigged 8800 GT graphics card certainly gives it an edge in graphics performance, but in this version of the XPS 630, the single 512MB nVidia GeForce 9800 GT card didn’t do badly: the method averaged a frame rate of 138 frames per second while jogging Doom 3 at 1280 by 1024 resolution with ant aliasing turned on.
Dell lets you choose either Windows XP or Windows Vista as the operating method, & you can add extras, such as an Ageia PhysX accelerator, a Blu-ray Disc drive, & up to 4GB of DDR2-800 Corsair Dominator memory.
The side panel easily unlatches to reveal a well-organized interior with neat cable management, a 750-watt power supply, & a tool-less hard-drive tray. For a case of its size, it offers respectable expansion room, with two open 5.25-inch drive bay at the front (a DVD±RW drive occupies the other bay). Two internal slots are open: two regular PCI, two PCI Express x8, & two PCI Express x1.
In general application performance, this XPS 630 (equipped with a 3.16-GHz Core 2 Duo E8500 CPU & 4GB of DDR2-800 Corsair Dominator memory) delivered a World Bench score of 114, whereas the gaming XPS 630 (equipped with a QX6850 CPU) achieved a score of 123 in our World Bench suite. That’s a nice result, considering this XPS 630 costs substantially less, though it does so by trading off features. For instance, it includes a single 640GB; 7200-rpm hard disk (Western Digital Caviar SE16) versus the gaming version’s two fast 160GB, 10,000-rpm Western Digital Raptor hard drives configured in a RAID 0 arrays.
The motherboard for this method uses nVidia’s 650i SLI chip set. Unfortunately, that chip set limits each of the system’s two PCI Express x16 slots (used for the dual graphics cards) to 8X speed in SLI mode, raising the possibility of an old-school bandwidth bottleneck that is less common today than it used to be. Another issue: Dell’s own LightFX program, which controls the colors of the case exterior’s two LED lighting zones, has a conflict with this chip set that forces users to resort to nVidia’s ESA light effects program instead. An open standard created by nVidia, ESA (Enthusiast Method Architecture) promotes two-way communication between PC components. The XPS 630 is among the first ready-made PCs to support it.