Patriot Viper 3 8GB 2133MHz Reviewccokeman - July 30, 2012
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Memory is often hard to separate from one kit to another in gaming, but when it comes to number crunching and computing, some memory provides an extra boost in comparison. To see just what kind of performance this kit has to offer, I will be running the modules through a series of benches to see just how they compare. There will be 8GB, 16GB and 32GB kits ranging in speed from 1866MHz - 2400MHz, tested at native speeds as well as overclocked. Overclocking of course will be dependent on exactly how far the testing rig will allow, but I'll push it as far as I can. The testing setup used for these benchmarks is listed below, where Turbo Boost has been disabled to eliminate uncontrolled clock changes that may skew the results. The CPU will be run with default clock speeds for baseline testing and bumped up to 4.5 GHz or as close as possible to the speed where possible for OC testing. All current updates and patches are installed for Windows 7 Professional 64-bit and the current AMD Catalyst driver of 12.6 is used for the video card.
- Processors: Core i7 3770K
- CPU Cooling: Corsair Hydro Series H100
- Motherboard: ASUS Maximus V Gene
- Memory: Patriot Viper 3 Series 8GB 2133Mhz
- Video Card: XFX HD 7970 Black Edition
- Power Supply: Corsair AX1200
- Hard Drive: Corsair Force GT 240GB SSD
- Optical Drive: Lite-On Blu-ray
- Case: Corsair Obsidian 650D
- OS: Windows 7 Professional 64-bit
CPU-Z: This application visually shows the settings that we have chosen in the BIOS. Items shown in this application include CPU speed and bus settings, motherboard manufacturer, BIOS revisions, memory timings, and SPD chip information.
Task Manager: We use this utility to show physical memory, kernel memory, page file, and processor usage.
- Processor: Intel Core i7 3770K 105.3 x 44 4632MHz
- Memory: Patriot Viper 3 Series 11-13-13-28 2527MHz
Putting the Viper 3 modules to the test involved increasing the memory divider, raising the applied voltages, tweaking the memory timings and CPU clock speed to get it all to work together at what turns out to be the highest memory clock speed I have reached with a set of DDR3 modules. Stock latencies on this set of modules are 11-11-11-27 using 1.5v at 2133MHz. Not really awe inspiring to say the least but the modules are rated for 2133MHz. The first test was to see how tight the modules would run using the default 2133MHz clock speed. I used the tight Samsung 2x4GB profile on the M5G and tried to tighten up the timings but 10-11-11-21 was all it would allow using 1.60v.
Where it got interesting is when the XMP profile was applied for the base line timings. Starting with the rated timings I was able to push up to 2400MHz by increasing the voltage to 1.65v on the modules and 1.05 to the memory controller, then tweaking the timings to 11-12-12-28. Every thing checked out so I went for 2600MHz with another tweak to the timings to 11-13-13-31 and voltages to the modules and memory controller to 1.68 and 1.15v. The board would post and open up the OS but was good for only screen shots. Even so there is some potential. Coming back to reality I adjusted the timings back to 11-13-13-28 leaving the voltages at what allowed the 2600MHz test to post. I then adjusted the CPU bclock up until the modules would not pass memtest and tried tweaking some more to no avail. The final clock speed of 2527MHz was reached using the 2400MHz divider (100:133) and a bclock of 105.3MHz using 1.68v. This setting proved stable in all of my stability testing. As a percentage this overclock is just over 18% or 394MHz on top of the 2133MHz top speed bin for this module series. Helping the modules along are the Black Mamba heats shields that effectively shed the thermal load of the modules.
Maximum Memory Speed:
The maximum memory speed for each set of overclocked modules is indicative of how well the modules ran on this test system. As such, your results may differ in either a positive or negative way based on the capabilities of your hardware. In other words, your mileage may vary!
The benchmarks used in this review include the following:
- CPU-Z Version 1.61
- Windows Task Manager
- PCMark Vantage
- PCMark 7
- Geekbench 2.1
- Super Pi 1.5
- SiSoft Sandra 2012
- Metro 2033