Xi MTower PCIeJanuary 19, 2011 By: Ron LaFon
First Look Review: Workstation offers exceptional speed at a moderate price.
Editor's note: This article was originally published in the Fall 2010 issue of Cadalyst magazine.
It's been a few years since Cadalyst reviewed a workstation from @Xi Computer, so when a new Xi MTower PCIe arrived, I was excited by the opportunity to put it through its paces. As it turned out, this moderately priced desktop workstation set a new performance record in Cadalyst Labs.
The MTower PCIe system I received was based on an Intel Core i7-950 3.0-GHz quad-core processor that was mounted on an Asus P6X58D Premium Intel X58 motherboard that supported both SLI and CrossFireX graphics accelerators. The motherboard had three PCIe 2.0 slots and included two USB 3.0 connectors as well as eight standard USB 2.0 sockets.
The system supported triple-channel DDR3 1600/2000-MHz RAM with 6,144 MB of 1,333-MHz triple rank interleave memory with heat spread, which is available only on Core i7–based motherboards. When fully populated, the motherboard can accommodate 24 GB of 1,333-MHz RAM. Although numerous hard disk options are available, the system I tested included a Seagate Momentus 500-GB 7,200-rpm XT hybrid SATA II drive with 4 GB of SSD memory cache. Due to the nature of these drives, the second and subsequent iterations of a given benchmark test will produce slightly higher scores, which I used for the test results reported below.
Devices include a DVD + RW DL/±R/CD-RW double media 4.7/8.5-GB 18x optical drive, a Logitech deluxe Windows keyboard, and a Logitech 2+ wheel optical mouse. An ultra-quiet Corsair TX850W series power supply (greater than 80% efficiency, 99% active power factor correction UL) provided ample energy resources for the system as equipped and for future expansion. The sturdy case measured 10.0" x 19.7" x 22.2" (W x D x H) and offered a substantial number of ventilation fans.
Microsoft Windows 7 Professional 64-bit was preinstalled on the system, and both a Windows 7 DVD and a DVD that included the various drivers used by the system were packaged among the cables and accessories. A PDF user manual for the Xi MTower PCIe also was included, as was a quick-start guide.
Graphics were provided by the new Fermi-based NVIDIA Quadro 4000 graphics card. This PCIe 16x single-slot card has 2 GB of DDR5 RAM, a DVI-I connecter, two DisplayPort connections, and a stereo connector. The Quadro 4000 supports OpenGL 4, Shader Model 5, and DirectX 11. (For additional information about this graphics card, as well as other Fermi-based cards from NVIDIA, visit www.nvidia.com.) Windows 7 x64 NVIDIA graphic drivers v126.96.36.19957 (dated September 1, 2010) were preinstalled and used throughout the benchmark testing. For the AutoCAD benchmarks, I used NVIDIA AutoCAD 2011 performance drivers x64 v18.1.4.
When testing the Xi MTower PCIe system, I ran two benchmarks: the Cadalyst C2011 v5.3b and the SPEC ViewPerf 11. The Cadalyst benchmark was running under AutoCAD 2011 x64 with the most currently available service packs and patches applied. I performed all tests at a screen resolution of 1,280 x 1,024 at a color depth of 24 bits. I ran several iterations of the Cadalyst benchmark in two different configurations, first with the default Autodesk drivers, then with several iterations of the same test using the NVIDIA performance drivers for AutoCAD. All benchmarks were run with vertical sync set to the Force Off position, as I typically do during all testing.