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Patriot Memory PC3-15000 2GB Dual Channel Kit Patriot Memory PC3-15000 2GB Dual Channel Kit: There's fast, then there's crazy fast. Patriot's latest DDR3 kit has the numbers on paper, but how does it look in the virtual battlefield?
Date: March 5, 2008
Written By:


My first foray into overclocking PC3 memory, how would it fair I pondered as I started the process. Then I remembered, Patriot has already done this for me. The memory modules arrived stating their OC ability, 8-8-8-24 / 1.9V / 1866MHz, simply enough, right? Well, not as simple as one would think, you have to be able to get the mainboard and cpu to climb that hill with you, unfortunately mine capped at 3.2GHz (1,500MHz memory speed):

The Patriot PC3-15000 Extreme Performance memory modules had no issues and not one hiccup running at 1,500MHz speeds.


I will be testing these modules on an Intel based system, for comparison, I will be sampling the previously tested Super Talent 2GB kit (2x1GB PC2-6400) at stock speeds and at overclocked rate (maximum attainable by Patriot). Without further ado, here is the test bed:

DDR3 Test bed:
Asus P5K3 Deluxe
MSI NX8600GT Twin Turbo
Intel 640 (P4 3.2 EM64T LGA-775)
Cooler Master RP-500 PSU
Patriot PC3-15000 (1.9V) (8-8-8-24)

Comparison Test bed:
Asus P5WDH Deluxe
MSI NX8600GT Twin Turbo
Intel 640 (P4 3.2 EM64T LGA-775)
Cooler Master RP-500 PSU
Patriot DC PC2-5300 (1.8V) (4-4-4-12)

When you set them next to each other (the CL values) you can see the PC3 values are double that of the PC2 values. Does this make a difference when it comes to performance? Only reading further shall we find out...

Test suite:

SiSoft Sandra XII Lite 2008
TMPGenc Plus 2.5
Quake 4

SiSoft Sandra XII Lite 2008

Although a synthetic benchmark, it's a popular one, freely available if you wish to make comparison benchmarks. We will be testing the memory speeds at stock speeds (667MHz).

This is not DDR2 VS DDR, as DDR won that race on the initial foray of DDR2. As you can see, DDR3, at least these Patriot modules, come out fighting...


A good indicator of CPU/Motherboard performance is PiFast version 4.3, by Xavier Gourdon. We used a computation of 10000000 digits of Pi, Chudnovsky method, 1024 K FFT, and no disk memory. Note that lower scores are better, and times are in seconds.

Lower times are better

While the synthetic shows a little bit of an advantage for DDR3, this one out and out shows that Patriots Extreme Performance modules are just that, performance modules. An ~12 second decrease (or ~25% ) is rather drastic improvement I would say.

TMPGEnc MPEG Encoding

Video encoding is a taxing chore, both on Memory and Processor, we will be encoding a 543mb VOB file to MPEG2. For the VOB to MPEG2 I used a bit rate of 5000k/Sec, as this is the midrange for a DVD, which is typically between 1000k/Sec to 10,000k/Sec. I used a frame size of 720x480 (DVD Std) and 16:9 NTSC. Note that lower scores are better.

The difference isn't as great here as in the PiFast test above, a mere 6%, nonetheless, an improvement.

Quake 4

Memory performance does play a role in gaming performance, especially a game that is as hard on an overall system as Quake4 is. Now running Ver 1.42, the Q4 demo works well for this purpose.

Once again the Patriot DDR3 memory outperforms the Patriot DDR2.

Final Words
So DDR3 memory is where we are going, while currently there is a price premium, if you want the current BearLake chipset from Intel, you will have to forgo a little cash. To match the BearLake performance, I would seriously consider memory modules that, for the time being, outperform it...

-1,866MHz @ 8-8-8-24 memory, OC'd from the start
-Life Time warranty (up to 1.9V)
-Overclocking ability in big chips
-Nice looking, compliments the window case designs nicely

-Cost, DDR3 memory pricing is still at a premium

If you have any questions or comments on this or other articles here at Viper Lair, then please feel free to leave your thoughts in our forums.


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