Kingston Predator 16GB (2x8GB) 1866 MHz DDR3 RAM/Memory Kit Review (KHX18C9T2K2/16X) - Benchmarks - PCMark7

PCMark7

PCMark7 is a "real-world" benchmark which runs an array of real-world tasks, such as multiple-tab web browsing, file copying, reading, and writing, gaming, and a large variety of other tasks which are meant to give your system a rating as it pertains to actual usage, and not engineered synthetic benchmarks.  This benchmark will give us a good idea of the actual difference we're likely to see at these different settings. One thing to keep in mind is PCMark is highly CPU-based, and memory speed is directly related to processor speed, so take these results with a grain of salt.

 

pcmark

A very small performance increase is shown in the PCMark results chart.  This is not unexpected, because in the standard user environemnt, which consists of opening files (mostly HDD-related), gaming, editing documents, and while memory speeds help along the processor, intensive tasks for the average user like gaming is very GPU-intensive and doesn't put alot of stress on the CPU.  Of course, as previously mentioned, if calculation intensive programs are being run, like stitching together pictures or rendering images, the small boost in clock speed can have an impact in the minutes for long operations.

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# Sabishii Hito 2012-10-26 08:21
These sticks are based on Hynix CFR 2Gb ICs and should have way more headroom, at least DDR3-2400 11-13-12.
 
 
# Evan 2012-10-26 08:28
Quoting Sabishii Hito:
These sticks are based on Hynix CFR 2Gb ICs and should have way more headroom, at least DDR3-2400 11-13-12.


Even the best chips down have some "down-binned" parts come off the line for the lower frequency kits. But appreciate the feedback, and I'll give it another shot for you (we were unsuccessful through several hours of trial-and-error through seemingly endless timing combinations at 2400 MHz). It is very possible we have one unlucky DIMM holding the kit back. Appreciate it and we will report back if we get something to stick this time! These also deserve a discussion of the Hynix chips, so thanks for that as well.
 
 
# Sabishii Hito 2012-10-26 11:04
Hmm, those buggers might need some more volts slapped in 'em! Although Hynix doesn't seem to scale much over 1.75v
 
 
# Sabishii Hito 2012-10-26 12:21
Yeah these ICs, when going for clocks over 2000 like the timings to be tRCD=tRP+1=CAS+ 2
 
 
# Evan 2012-10-26 12:28
Quoting Sabishii Hito:
Yeah these ICs, when going for clocks over 2000 like the timings to be tRCD=tRP+1=CAS+2


Great feedback and a good rule of thumb! Our mentality for the max OC was a "safe" 24/7 OC for a more typical enthusiast who likes to push without much added risk of damage, so we limited the voltage to 1.7V, I'll try a bit higher and see where it takes us!

Have a great day/weekend!
 
 
# Sabishii Hito 2012-10-27 08:14
My mistake, these actually use Hynix MFR 4Gb ICs, but they like the same kind of timings as their smaller-density siblings the 2Gb CFR chips.
 
 
# gene396302 2012-10-28 08:27
Can you put this on a laptop, it looks like a laptop memory.
 
 
# Evan 2012-10-28 17:13
Quoting gene396302:
Can you put this on a laptop, it looks like a laptop memory.


These are full-sized DIMMs, so they will not fit in a laptop. They appear more square because of the large-profile heatsinks.