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RAM and folding

post #1 of 6
Thread Starter 
Ok I am building a rig to fold on(also my backup/internet rig). I need to buy ram and need to keep to a tight budget. So I have two options, buy new 800 ram and it will be oc'ed to around 850 but will probably have 5-5-5-18 timings I would guess. Or I could upgrade my sig rig, and put my gskill 800 speed and it will run 4-4-3-5 2t @ 850 or 4-4-3-5 1t @ 810.

Also does 1gb vs 2gb vs 4gb matter in folding...??? I know lots of questions but I want to be efficient as I can be since I am building it for that.
post #2 of 6
with my experience, i dont see that much difference in times when it comes to ram. (a few seconds.) i have seen the most performance depending on how high the cpu is o/c'ed. for me, i have seen the most performance from a good o/c and running Vmware.
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post #3 of 6
Thread Starter 
Well with my backup rig I am probably looking at 3ghz-3.1ghz out of an Amd processor, so you don't think 1gb vs 2gb will matter, or tight timings low speed vs loose timings high speed will matter either?
post #4 of 6
from personal experiance OCing my ram and tightening the timming made little to no differance, i have heard other people say the opposite of me tho and report that just by tightening the timmings they have shaved minutes off. As for 1 vs. 2 gigs it shouldnt make a differance as long as you arnt using more then the 1 gig you have and i dont know of any folding clients that use that much memory.
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post #5 of 6
Quote:
Originally Posted by lemans81 View Post
Well with my backup rig I am probably looking at 3ghz-3.1ghz out of an Amd processor, so you don't think 1gb vs 2gb will matter, or tight timings low speed vs loose timings high speed will matter either?
With a AMD rig you will probably benefit from the tightest timings you can get. The intel rigs still dont care about tight timings and are really not affected much by ram speed and timings. AMD is far more touchy when it comes to that.

Still the biggest factor is OC but you can only try and figure it out and see what gives you the best times in folding.
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post #6 of 6
It really depends on the MCH strap latencies as to what is better. Some of us intel users have found that between DDR900 and DDR1200 that MCH latencies can really slow us down....

I lost about 8% bandwidth, but cut my latency by 45% by switching from DDR1066 to DDR800 with tighter timings.

Examples
Me: Clocked @ 3.6GHz my WIN SMP times dropped from ~10:00/% to ~7:00/% comparing DDR1066 5-5-5-15 2T to DDR800 3-3-3-8 1 or 2T

Cyberdruid went from ~13:00/% to ~9:00/% switching from DDR 11xx 5-5-5-15 2T to DDR800 4-4-4-12 2T
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