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Appeared on: Tuesday, September 16, 2008
Patriot PC3-14400


1. Introduction, package

Patriot Extreme Performance (EP) Low Latency line is engineered to expand your gaming options. These DDR3 modules are designed to operate at 1800MHz at 8-8-8-20 timings and offer a capacity of 2GB in a dual channel kit of course.

The modules are equipped with Patriot ACC (Aluminum Copper Composite) technology, for maximum performance and stability under extreme overclocking conditions.

- Main features

- Retail package

Patriot Memory provided us the retail package of the 2GB kit (2x1GB) PC3-14400 memory with part number PVS32G1800LLKN.

The retail price is around ~$199 (-$20 rebate) as found at several online stores. The kit we received arrived in our lab in a common plastic box:

Both ram modules are covered with a pair of green 'Viper Fin' heatsinks. While there are very eye catching, they should do the work and keep the modules cool. The used material is copper and aluminum composite.

Flipping the memory modules the other way around, we see a small label that includes the modules' part number, memory timings and voltages.

As you can see, there is also the Nvidia SLI logo present and of course the rating speeds of the DDR3-1800MHz. Partiot claims that these speeds will come with CL8 @ 1.90V. Well, we will have to test it ourselves in the following pages.

CPU-Z provides more information about the installed memory. The Patriot PC3-14400 supports Nvidia's EPP 2.0 profile, although it is not reported by CPU-Z:

However, Everest Ultimate Edition gives us more information


2. Overclocking

Below you see our test PC configuration we used for all the benchmarks.

Our goal is to find out how stable the memory modules in various frequencies with the lowest available timings. This is a rather " test and trial procedure" and the results can vary among different motherboard and of chipsets.

The memory modules are designed to work perfectly with the Nvidia 790i chipset, so we hope that our test PC configuration will allow for high performance. All tests were done with memory unlinked, allowing us to leave the CPU clock at its stock speed and overclock the memory at our desired levels.

Starting from 1333MHz FSB (666MHz memory), we managed to get low timings down to 6-5-6-8 with 1T, with the voltage set at 1.90V and no special bios settings.

Since we had the memory unlinked with cpu, we pumped up FSB to 800MHz (1600MHz effective). This time we had to rise to CL7 with rather low timings of 7-6-5-8-2T, again at 1.90V:

Reaching 1800MHz was not a big issue; we got them with 8-7-6-8-2T @ 1.90V. Remember that the memory is rated at 1800MHz with 8-8-8-20 timings, so it was a nice surprise to see much lower numbers:

So what's the top speed for this memory module? To be honest, our test trials reached the 1964MHz with 1.90V. Of course we had to rise up timings to 9-9-9-20 but anyway it's good to see that the memory reached 164MHz higher than its ratings:

It is possible that the memory modules can go even higher with the proper motherboard and of course corresponding BIOS settings. For our tests, we left most of the settings at Auto.


3. Final words

The Patriot Memory PC3-14400 supports low latencies at high DDR3 speeds. The memory supports Nvidia's EPP 2.0 profile, which means you will automatically get the advanced performance at the lowest timings, a very useful feature for amateur users. However if you try harder, you can get even lower timings.

The modules are designed to work at 1.90V. According to the tests, we easily got the promised 1800MHz at CL8 and a top roof of 1964MHz with CL9. After that point the memory was rather unstable, possibly requiring more voltage..

The modules offer overclocking possibilities for all those who need it, while they are operating in stability at their maximum speeds. And considering its relatively low retail price ($199), we definitely have a safe a buy here.



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