I was upgrading my Compaq Presario which included the memory; originally it had a 1Gb and a 2Gb module from two different manufacturers. I bought two of these (8Gb total) because matching memory modules are suppose to make your computer faster. I definitely see a difference in performance.
Using this RAM with a Sandy Bridge i7 2600K.Initially installed one 8GB kit (2 x 4GB sticks). Overclocked to 2133MHz 10-10-10-28 1T completely stable at 1.45V DRAM.I then added 2 more sticks a week later for the total of 16 gigs and 4 sticks, which made overclocking stability unsurprisingly more difficult to manage. I can do stable 2133 11-11-11-28 at 1.55V DRAM, but trying to go down to CAS latency 10 requires going to 1.6V DRAM. I have it *almost* stable (at least passes a few runs of Prime 95, but no..
Bought this on sale when it was $39.99 for a kit.The amount of money you're going to save on power due to low voltage memory is minimal.However, if you're an enthusiast and want tighter timings or faster speeds, this is the memory kit to get.Computer set-ups:#1 - i7 2700K @ 5.0GHz with ASUS P8Z68-V Pro 4x4GB 8-9-9-24-1T with 1.5V's at 1866MHz#2 - i7 2600K @ 4.8GHz with ASUS P8Z68-V Pro 4x4GB 10-10-10-28-1T with 1.55V's at 2133MHzMy computers are pretty much near identical systems, stable at Prime95 blend te..