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Questions about memory

C

Chu

Banned
Allright, I finally raked together enough cash to upgrade my video encoding machine, because 3-4 fps with a 900mhz P3 == 2-3 DAYS per video. I'm pretty much settled on a Asus P4B and a P4 1.6a, but i'm a little confused about memory.

Mushkin has the cheap stuff (512 megs DDR, PC 2100) listed at $125 and rated at 2.5-3-3. Another $30 will get you 2-3-3@2100. Another $30 will get you 2-2-2 @ 2100 or PC2700 @ 2.5-3-3.

My question is, how exactly can you translate the different latencies into real world proformance gain? Since my system is mainly being used for video encoding, I assume that I would notice "trivial" improvements more then most, but are we talking about $30 to $60 for only 1-2% proformance gains, or is it more substantial then that?

Also, while we are on this topic, I am pretty much taking for granted that my chip will hit 133x16. If I want to go higher though . . . what are the odds the cheap stuff (2.5-3-3) will crap out on me before my chip will? If the odds are high, what would the additional overhead for dropping $30 for 2-3-3@2100 get me?

In any case, thanks for any help with this problem, hopefully I can get this resolved and have my order placed tomorrow 🙂

-Chu
 
If you're planning to OC, get the 2700's. You will have almost no chance of them crapping out on you. On the CAS latancy, you're not going to see too much of a difference. Although CAS 2 is the way to go anyways. IMHO I like off-brand memory better than Crucial. For the video encoding the CAS 2 will help.
 
>>

If you're planning to OC, get the 2700's. You will have almost no chance of them crapping out on you. On the CAS latancy, you're not going to see too much of a difference. Although CAS 2 is the way to go anyways. IMHO I like off-brand memory better than Crucial. For the video encoding the CAS 2 will help.


<<

Well, I'm really on a budget here and am trying to get the best bang for the buck. $60 is the difference between a 1.6a and 1.8a. It's also the difference between eating McDonalds and Ramen for a month. If money wasn't an option the PC2700 would be an obvious choice, but what is the extra $30 or $60 really getting me? That is what I need to know to make this decision :\

-Chu
 
lets say you settle at
137 mhz (conservative overclocking for the northwoods i think):

137 mhz * 16 = 2192mhz
137 mhz * 18 = 2466mhz


I think any Mushkins ddr can reach that easily.
You'll notice the 275 mhz more than the .5 cas difference.
 
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