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Test Settings

Triple-Channel DDR3: 6GB Kit Roundup

Test Configuration


Intel Core i7 920
2.66 GHz, 8.0 MB L3 Cache


Asus P6T Deluxe BIOS 1003 (12/05/2008)
Intel X58/ICH10R Chipset, LGA-1366


Gigabyte GV-R487-512H-B
HD 4870 GPU (750 MHz), GDDR5-3600

Hard Drive

Western Digital WD5000AAKS, 500 GB
7,200 RPM, SATA 3 Gb/s, 16 MB cache


Integrated HD Audio


Integrated Gigabit Networking


Coolermaster RS850-EMBA (850W, ATX12V v2.2)

Software and Drivers

Operating System

Windows Vista Ultimate SP1

Graphics Driver

AMD Catalyst 8.9


Intel INF

Benchmark Settings


Version 1.70 (Memory Stability Test for Overclocking)

SiSoftware Sandra XII SP2

Version 2008.5.14.24, Test=Memory Bandwidth Benchmark

Asus has an excellent reputation for memory stability, so we used its P6T Deluxe to find the best timings and highest speeds of each module set.

The P6T Deluxe supports memory voltage changes in increments of 0.02 V. Since this particular motherboard did not support 1.650 V precisely, we chose the 1.66 V setting, which is probably within the safety factor Intel calculated into its 1.65 V "maximum" voltage recommendation.

Of course, we needed a Core i7 processor, but not just any processor would do. While most reviewers are stuck with Core i7 920 engineering samples that only support DDR3-800 and DDR3-1066 ratios (3x and 4x base clock, times two), our retail sample supports data rates all the way up to 2,133 MHz (8x base clock, times two).

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