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Which RAM?

Last response: in Overclocking
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May 3, 2010 8:57:57 PM

1. Corsair TW3X4G1333C9A PC3-10666 4GB Kit 9-9-9-24 240pin DIMM
2. Ripjaws F3-10666CL7D-4GBRH PC3-10666 4GB Kit 7-7-7-21 240pin DIMM

i dont know which 1 should i take and have more capability for gaming. their price just about the same.
and i've been to their website saying about ram no.1 and no.3 is Corsair ultra-high performance DDR3 Memory for AMD Phenom II Processors.
my processor is AMD phenom II x4 955.

or
3. Corsair TW3X4G1600C9D PC3-12800 4GB Kit 9-9-9-24 240pin DIMM



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a b } Memory
a c 100 K Overclocking
May 3, 2010 9:12:54 PM

Well you're going to want higher frequency and lower timings. So I think the Ripjaws look best with CL7, but only if they're all running at the same frequency. Are they 1600mhz? 1333?

You can figure out what's fastest with a little math. First take the frequency and divide by 1000, so 1600 = 1.6, 1333 = 1.333, 800 = 0.8 etc. We'll call this S

Now, do 1/S so 1/1.6 = 0.625. This is your "bit time" in nanoseconds. Your cycle time is 2x that, so 0.625x2=1.25ns. Now that you have your cycle time, you multiply it by the CL (latency) to get your access time.

For 1600 @ CL7 = 1.25x7 = 8.75ns
1600 @ CL8 = 10ns
1600 @ CL9 = 11.25ns etc.
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May 3, 2010 9:19:45 PM

no. 1 and 2 is 1333 and no.3 is 1600mhz. wat is CL7?
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May 3, 2010 9:22:23 PM

i see. got it.
thx!. but im confuse with corsair which have ultra-high performance DDR3 Memory for AMD Phenom II. whats the different?.
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a b } Memory
a c 100 K Overclocking
May 3, 2010 9:30:27 PM

I would have to think that they're just trying to say they've optimized their RAM for that CPU, but I think that's probably mostly just a sales ploy.

I'd have to recommend getting 1600mhz DDR3 RAM, and I'm not sure what the prices you're looking at are, but for under $130 you can get RAM with CL8 and some like the stuff I have (Patriot Viper II Sector 5) can overclock with a little more voltage to CL7 at 1600mhz, although more voltage can be a bad thing sometimes.
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May 3, 2010 10:26:12 PM

the lower the # = 7-7-7-7 is always faster then 9-9-9-9
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May 4, 2010 8:49:36 AM

Best answer selected by AvengedSoul.
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May 9, 2010 4:57:30 PM

avengedsoul said:
1. Corsair TW3X4G1333C9A PC3-10666 4GB Kit 9-9-9-24 240pin DIMM
2. Ripjaws F3-10666CL7D-4GBRH PC3-10666 4GB Kit 7-7-7-21 240pin DIMM

i dont know which 1 should i take and have more capability for gaming. their price just about the same.
and i've been to their website saying about ram no.1 and no.3 is Corsair ultra-high performance DDR3 Memory for AMD Phenom II Processors.
my processor is AMD phenom II x4 955.

or
3. Corsair TW3X4G1600C9D PC3-12800 4GB Kit 9-9-9-24 240pin DIMM


Well I am not sure if you would choose 1600Mhz RAM
But I do like the G.Skill Trident 2000Mhz DDR3 Extreme Performance RAM
But you have to make sure that your motherboard also supports a model type of RAM.
Some people don't read the memory support list for their motherboards. So if I was you right now I would
check to see if any of he RAM are supported before buying because you can make a big mistake.
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