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Which set makes sense for AMD?

Last response: in Memory
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March 30, 2010 7:03:07 PM

Okay, just to look at a subset, consider the following G.Skill Ripjaws with the specified speed, timings, and current newegg prices:

#1 1600, 7-8-7-24, $119.99
#2 1600, 8-8-8-24, $114.99
#3 1333, 7-7-7-21, $109.99

I'm still trying to learn what the limitations are for memory with AMD set ups. Apparently you can't get set #1 to work at advertised speed and timings with AMD and you have to either drop the clock speed or relax the timings. Would it be foolhardy to hope for a BIOS update that unlocks the potential of this set a little more?

Now, in case anybody tells me that I should just go ahead and cross #1 off my list, which would you pick between #2 and #3? Tighter timings or more speed?

I'm sure I could get any of these to work for me and I would be happy, but I'm just trying to explore a little further into the subtle differences so I know what to expect. Muchas garcias!

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a c 163 } Memory
a b À AMD
March 30, 2010 9:07:27 PM
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Hi newcomer and welcome to the Tom's hardware forum.

You won't see a big difference between 1333 and 1600, so, I would got for the 1333. Have a good CL and less voltage.
March 30, 2010 9:30:51 PM

Just for the sake of argument, would I be able to get the 1600 CL8 set and clock it down to 1333 CL7 with the same voltage as the other set?
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a c 163 } Memory
a b À AMD
March 30, 2010 9:38:35 PM

Yeah, you can do it, but the problem would be that the RAM don't run at CL7 and 1.5V stable
March 30, 2010 11:20:17 PM

#3 is your best bet. you won't notice a difference with the faster speed most likely, but running at CL7 you might notice a little difference.
March 30, 2010 11:32:11 PM

Thanks, guys!

Last question I have is if I eventually upgrade to a Thuban processor (or perhaps more if Bulldozer is still AM3 compatible), will I end up being held back at all by sticking with a 1333 RAM speed right now? If I plan on just doubling the RAM later and want to make sure it will still be up to par 1 or 2 years down the road, will 1333 cut the mustard? Will it even matter with the mobo options I have now?
a c 163 } Memory
a b À AMD
March 31, 2010 1:42:49 AM

The processor upgrade depends of the mobo, if you have a mobo with the new AMD chipset is ready to the Thuban, and some 790FX can support the Thuban too.

Don't worry about the RAM, DDR3 will stay for a long time like DDR2 and the Thuban comes this year.
March 31, 2010 3:07:58 AM

Best answer selected by BigBlueDart.
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