Corsair 3GB DDR3-1333MHz CL9 Memory - Test Setup and Core i7 Benchmarking Info

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Corsair 3GB DDR3-1333MHz CL9 Memory
Test Setup and Core i7 Benchmarking Info
Benchmarking the DDR3-1333 Kit

Test Setup:

In this section we will show the setup of the test system for our memory testing. I have provided separate configurations for each of the speeds we have tested 1333MHz CL9 (stock), fastest CL8 speed, and the fastest CL9 speed possible. It is important to note that in order to achieve some of these speeds we have tested this memory kit at; it required overclocking the FSB, which in turn increases our CPU clock speeds. For all of my testing I used the EVGA X58 motherboard and keyed in specific timings in order to keep everything comparable.  To make things interesting we included the numbers of the Crucial Ballistix Tracer DDR3-1600 CL8 kit for reference.


Test System:

Intel Core i7
3GB Corsair XMS3 DDR3-1333 Kit
2x Radeon HD 4850 Crossfire
Hard Drives
2x Seagate 200GB HDD RAID 0
Operating System
Windows Vista Ultimate x64 w/SP1
ATI Drivers
9.1 Drivers


We only used three main memory settings for testing the Corsair XMS3 DDR3-1333 memory.  We use the timings on the label - 9-9-9-24 1T at 1.5v as well as the fastest clock speed available at both CL8 and CL9.  In order to push this memory up to higher speeds, we bumped up the voltage to 1.6v - up from the stock 1.5v.  Our fastest CL8 speed ended up being DDR3-1496.  Finally we clocked up the DDR3 as fast as possible using the CL9 settings for stock speeds, left the voltage at 1.6v and found out how high we can take this memory before it gets flaky on us.  The result was an impressive 1734MHz at CL9.  I'm sure we could take it higher with a bit more voltage but as this memory is geared for the "average" user, we don't feel that we need to phase-change cool our memory for maximum performance - at least not on a $65 kit.  Either way, we managed to gain an extra 400MHz at stock timings - a 30% overclock.

DDR3 Stack
DDR3 Stack


Many DDR3-1333 kits for the Core i7 come with CL8 timings, but this value kit is not geared for high-performance, but great value and as such it comes with stock timings of 9-9-9-24 at 1.5v.  As you can see, we had a fair bit of headroom when it comes to overclocking, but most users will simply sit with stock timings.

Corsair SPD
Corsair SPD


As you can see, the memory comes with several SPD values that should make it work in pretty much any system.  At DDR3-888 it clocks in at CL6, DDR3-1038 is set at CL7, DDR3-1186 is locked in at CL8 and finally DDR3-1333 is set at CL9.  As we've shown above the memory has a whole lot more to offer though.

 CL9 @ 1734MHz
CL9 @ 1734MHz


 CL8 @ 1496MHz
CL8 @ 1496MHz