CPU Feature Performance Testing dives into memory channels

by Rafael Hernandez on February 19, 2010 · 0 comments

The make or break point on a new system build often times comes down to skimping on that fancy new memory kit. While it may not seem like such a big deal you could be leaving large chunks of performance on the table.

iXBT Labs continues their series on testing CPU performance with a look at how modern CPUs handle varying memory speeds and multiple memory channel setups:

This time we expanded the memory frequency range to test the most memory clock rates available: from DDR3-800 to DDR3-1600. The former does not exist as such, but we still conducted such a test for the sake of an extra dot on each diagram. We also wanted to find out how the number of channels of the Core i7 memory controller affected performance. Obviously, the fastest mode would be the one with all three channels enabled. However, this requires 3 [identical] memory modules, and not every user can afford that many. Thus, we wanted to see how much you could lose, using just 2 channels.

Some interesting performance results which you’ll want to take into account when it’s time to pick your next memory kit.

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