G.Skill Ripjaws 4 2666MHz 16GB DDR4 Memory Kit Review

by - 7 years ago

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Overclocking and Performance


The Overclock

When we overclock memory kits in our reviews we go for all out frequency, this is primarily done by tweaking the DRAM frequency presets in the BIOS. Once we top out at the highest stable frequency divider we see if any more frequency can be had by increasing the baseclock, or by changing the baseclock (particular relevant for X99). Typically we set timings as the JEDEC profile recommendations for the frequency we are going for, if this does not work we allow auto-timings to be calculated by the motherboard. Normally we will only make small adjustments to the BCLK and timings to keep the system stable, we will also not use more than 1.65 volts for DDR3 and 1.5 volts for DDR4 as this is not recommended for 24/7 operation.

gskill3000

Overclocking this set was a dream, timings as standard were very good; so I left them as they were. I did try to overclock up to 3250MHz, while it was stable in general use; it crashed the computer on almost every test.

Cinebench

CINEBENCH is a real-world cross-platform test suite that evaluates your computer’s CPU performance. Cinebench R15 is a totally free utility and is available for download here. Cinebench is fairly sensitive to changes in memory frequency and timings.cinebench

AIDA64

AIDA64 implements a set of 64-bit benchmarks to measure how fast the computer performs various data processing tasks and mathematical calculations. Memory and cache benchmarks are available to analyze system RAM bandwidth and latency. A free version of AIDA64 is available for download here.aida

latencySiSoft Sandra

The SiSoft Sandra memory benchmark is based on STREAM. STREAM is a popular memory bandwidth benchmark that has been used on personal computers to super computers. It measures sustained memory bandwidth not burst or peak. Therefore, the results may be lower than those of other benchmarks. Download a free trial version of SiSoft Sandra here.sisoftWPrime

wPrime is a leading multithreaded benchmark for x86 processors that tests your processor performance by calculating square roots with a recursive call of Newton’s method for estimating functions. wPrime is a free utility that is available for download here. WPrime is influenced by memory timings and frequency.wprime3DMark Fire Strike

3DMark Firestrike is Futuremark’s latest creation for testing the GPU performance of high-end gaming PCs using Direct X 11 graphics. You can download a free basic version of 3DMark here. We use only the Physics score as this is most sensitive to memory frequency and timing changes.firestrike

Article Index

  1. Introduction
  2. Motherboard Installation Pictures
  3. Test System and Procedure
  4. Overclocking and Performance
  5. Final Thoughts
  6. View All

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