|ASUS P7P55D-E Pro Motherboard|
|Reviews - Featured Reviews: Motherboards|
|Written by Bruce Normann|
|Thursday, 24 June 2010|
Page 9 of 17
Motherboard Testing Methodology
I've done much of my benchmarking recently with an AMD platform. The ASUS M4A79T Deluxe motherboard features the AMD 790FX Northbridge and offers 42 available PCI-e lanes. Obviously, CrossFireX configurations are easily supported with this many lanes of interconnect. The Phenom II architecture also features an integrated memory controller, which has consistently benefitted the AMD platform in the last several years. So, it might seem like an odd choice for comparison, but it's a well established baseline for me and allows me to spot performance differences easily, and with precision.
Intel LGA 1156 System
AMD AM3 System
I took the ASUS P7P55D-E Pro motherboard to two different levels of stable overclock for these tests. The first, at 3.6 GHz (200 MHz BCLK x 18) I got easily without raising the CPU voltage from the default value. I then raised the voltage just a bit to 1.30 VDC, and changed the CPU multiplier to 20 for a 4.0GHz overclock. The memory speeds available depended on the base clock speed, and with a 200 MHz BCLK, I was able to keep the memory precisely at its rated 1600MHz speed. Memory timings were kept at their default XMP settings of 7-8-7-24 for all tests. Don't be fooled by the reference to QPI in the CPU-Z display, it's actually the DMI interface that's being reported.