Ram caching : Why Do I Want 32GB of Memory?

So you have a Rampage IV Extreme and 32GB of memory has been bought, installed and overclocked but what is the point of spending good money on modules that may just be wasted? In this section we are going to attempt to answer just that. X79 is the first platform to utilize 8 DIMM slots which means that due to today’s cheap memory prices you can get 32GB of memory for as little as $160.

The first thing you can do with your extra memory is set up a RAM disk. As many benchers know, a RAM disk gives unmatched access times and comes in handy when benching or if you do things like extended periods of video processing. It will also speed up application performance in general. The only drawback is that you lose the data on the RAM disk if you reboot. That said it can be a hassle to move files around every time you want to reboot but it does still have its uses.

The main RAM use we are going to look at however is RAM caching. RAM caching has been around for a long time but only today do we have all of this extra memory to make it more feasible. RAM caching is similar to SSD caching where the computer's internal memory is used to hold or contain the most frequently used disk data. Basically the more you use some particular data, whether it be an application or a game or even files, the more it will be cached to the memory and the faster it will be.

ASUS does not specifically have a RAM caching utility but you can find trial software online free of charge (Supercahce5, FancyCache, etc). To put RAM caching to the test we first ran some benchmarks with our WD 1TB Black mechanical drive and then with a RAM cache of 15GB. The results are nothing short of outstanding and by outstanding we are talking 100 times faster in CrystalDiskMark read and writes.

Next up we ran PCMark7 with and without the RAM cache and then we tested SSD caching on Z68 with the same system setup. PCMark7 combines more than 25 individual workloads covering storage, computation, image and video manipulation, web browsing and gaming so is very reflective of day-to-day PC usage. As you can see RAM caching dominates in yet another benchmark.

How to setup (asus.com)

http://rog.asus.com/forum/showthread.php?6124-How-To-Set-Up-a-RamCache-on-ASUS-X79-Series-Motherboards.

Mon caching est tout sur mon SSD. 25gb d'aloué/réservé sur mon Agility2 240gb.

Comme tu dis, pour l'utilisation que j'en fait ( gaming surtout ), ça ne me sert à rien d'avoir vraiment plus que 6-8gb de Ram. Mais avec 16gb j'en ai pas assez pour cacher un ~20gb au moins sur la Ram .... 10gb en caching c'est pas assez.

Si ta 16 go de ram, tu cache 10 go t'es correct en masse mec...

Il va même te rester 4go pour ta veille prolongée si tu l'utilise.

Tu as raison mais ce serait pas mal plus "sua coche" avec un 32gb.

Tant que ton Ramdrive soit plus gros que la ram qui te reste ya aucun probleme dans le fond.

Mais

Pour

presque tout le monde ici, c'est completement innutile !!

J,ai fais des test en situation de vie courant avec le pagefile / temp sur un HDD vs mon raid 0 de SSD

je vois presque que aucune différence.

Ya des fois un power trip de dire : STFU moe j'ai 6 GTX590 - 4SSD 6GBPS de 250Go RAID ) sur un controleur LSI SAS - 72Go Dde RAM blablabla STI QUE JE BENCH

Ya des fois un power trip

Comme tu vois, j'ai pas acheté 32gb Je trouvais ça "useless" quand même puisque jsuis déjà 100% sur SSD alors la différence est déjà moindre que si j'avais juste un HDD normal. Puis avoir ~180$ à flamber sur un autre kit de mémoire comme le mien, j'irais plutot m'acheter un SSD sata3 "suacoche" pour mon OS et je laisserais mes jeux sur mon Agility2. Genre un Force GT ou un Vertex Maxiops 120gb pour mon OS/apps.