Posted 30 June 2012 - 07:49 PM
--RAM--
With AMD as far as RAM goes, "LOWER" timings are where RAM shines with an AMD CPU, with Intel it is not as important, I have seen an Intel CPU (3820) take a junk kit of RAM, and make it perform like a more expensive kit of RAM..
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AMD
Back in the day I put this to the test, and had a set of DDR2 800 MHZ Kingstom Hyper-X with timings of (4-4-4-12), and I put it up against stuff with timings of (5-5-5-15) and higher (all dual channel), also against DDR2 1066 (ddr2 1006 is just OC'ed 800MHZ anyway), in the same two motherboards, with the same CPUs (Athlon 64 x2 6000+, and 6400+, and Phenom II 720 Heka triple core), and the results were noticable.. At stock sppeds and voltage, the Kingston Hyper-X at (4-4-4-12) beat everything but my Kit of Corsair Dominator and that was only by a very small margin in testing, BUT, when I did a very small OC to the Kingston, and boosted it to I believe was 980 to 1080 MHZ without touching the timings, guess what won..?? You guessed it (4-4-4-12), after that I did a little OC to the Corsair Dominator (keeping the timings stock) got it around 1280 to 1300MHZ and then it really shined, had stability issues 2 programs not related to games. Normally when overclocking RAM, you have to loosen up the timings (higher), no matter what for stability, but every once in a while you find a GEM of a kit that will let you keep almost stock timmings... On a side note, I have seen the same RAM (on the QVL list) get rejected between one mobo that loved it, and one that spit it back out.. Same PSU... Did I mention ever so little voltage bumps, and not just on the RAM and CPU..?? (NB)
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Intel
Intel chips however just laugh at RAM in a lot of cases, and make it do what the CPU pleases , and the speed (MHZ) of the RAM is more of a benefit (but low timings are important as well)...
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Good RAM (with the lowest timings you can get) for AMD motherboard CPU combos is the way to go, and from what I have seen this is the case with Bulldozer as well, not just Denebs or Thubans, so anyone that tells you that whatever RAM kit is no better than the other, then they are incorrect.. With two RAM kits at the same MHZ, the kit (dual channel) with the lower timings will perfom better with AMD.. PERIOD.
I have a set of old DDR3 1333MHZ G-Skill RAM at (7-7-7-21) that was fantastic, and i'm currently running Corsair Dominator 1600Mhz at 1808Mhz at almost stock timings, and I can say without a doubt that i'm performing better than someone I know running 1800Mhz
at (9-9-9-24) timings... Some people say RAM doesn't matter, not true.. Quantity matters to a point, but quality "ALWAYS" matters.
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Lower timings with higher MHZ is better.(check to see what your memory controller on your CPU can handle) If you can get a CAS-7 kit over a CAS-9 or higher Kit at the same MHZ, that's the way to go. (lower timings)
Your system will be a bit more snappy, some people might say they don't see a difference, but I know better, as long as you have the CPU, GPU, and motherboard to handle the job, you will notice a difference when gaming, maybe not an Earth shaking experience, but just wait until the screen is filled with particles, smoke, fire, exlposions, and lasers (watch here comes a comment about the GPU), you will notice.
If you buy a bidget kit of RAM expect budget performance, that is unless you run an Intel CPU, then it's buyer beware..
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F.Y.I., 32gb of RAM is overkill at the moment... LOL