Testing:
The test system listed in the "Configuration" section was used for the execution of all benchmarks, which include tests from these packages:
» Lavalys Everest Ultimate Edition 4.60
» PassMark Performance Test v6.1
» FutureMark 3DMark Vantage Build 1.0.1
For comparison purposes, the G.Skill 4GB DDR2-800 Pi Black Series dual channel memory kit was tested head-to-head with a Kingston HyperX 2GB PC2-9200 DDR2 memory kit. This kit may have half the capacity, but I have run it successfully with this CPU and motherboard combination at speeds of 800MHz, 1066MHz, and all the way up to 1150MHz. It will provide a good comparison in terms of clock speed and timings, and should show what an upgrade from a 2GB kit to a 4GB kit might provide in terms of performance.
A total of five memory configurations were tested, as detailed by the following list:
» G.Skill Pi Series 4GB PC2-6400 DDR2 at 800MHz, 4-4-4-12, 1.8V [CPU: 2.13GHz, 1066MHz FSB]
» G.Skill Pi Series 4GB PC2-6400 DDR2 at 1000MHz, 5-5-5-15, 1.9V [CPU: 2.33GHz, 1333MHz FSB]
» Kingston HyperX 2GB PC2-9200 DDR2 at 800MHz, 5-5-5-16, 1.8V [CPU: 2.13GHz, 1066MHz FSB]
» Kingston HyperX 2GB PC2-9200 DDR2 at 1000MHz, 5-5-5-16, 1.9V [CPU: 2.33GHz, 1333MHz FSB]
» Kingston HyperX 2GB PC2-9200 DDR2 at 1066MHz, 5-5-5-16, 1.9V [CPU: 2.13GHz, 1066MHz FSB]
These five configurations represent the G.Skill kit at stock speed (800MHz) and the maximum overclocked speed (1000MHz), and the Kingston kit running at 800MHz and 1000MHz to match the G.Skill kit, as well as at 1066MHz for reasons we will see as we look at the various test results.
Everest Ultimate Edition 4.60:
Everest Ultimate Edition provides a set of memory specific tests which gauge performance in terms of read speed (in MB/s), write speed (in MB/s), copy speed (in MB/s), and latency (in ns). Higher values are better for everything but latency.
The chart above details that at 800MHz, the 4GB G.Skill kit generally holds a slight edge on the 2GB Kingston kit, but overclocking shifts things further in G.Skill's direction. With both kits at 1000MHz, the G.Skill kit could be considered the winner, and even with the Kingston kit pumped up to 1066MHz the results are close and G.Skill still has the best score in two out of four categories.
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