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DDR2 vs DDR3 - Page 4

post #31 of 68
Quote:
Originally Posted by Johnnyfive View Post
Ok fair enough, but overall performance compared with 8gbs at a slightly lower speed?
If you use more than 4GB of that 8 you have installed, you will see performance decreases. If not, you might get a little faster.
post #32 of 68
Quote:
Originally Posted by RussianGrimmReaper View Post
If you use more than 4GB of that 8 you have installed, you will see performance decreases. If not, you might get a little faster.

Hmm.. DIMM's? 0/2, 1/3?
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post #33 of 68
Thread Starter 
Low strife, thanks. My biggest concern was RAM holding me back. If DDR2 won't restrict my overclocking potential on a Q9450 or worse, then I don't see why I should reach for DDR3.

I'm really loving the diverse, in-depth feedback I'm getting here. I wish I found this site sooner.
post #34 of 68
Quote:
Originally Posted by Johnnyfive View Post
Hmm.. DIMM's? 0/2, 1/3?
I don't think it matters... Try both and see which overclock better?
post #35 of 68
Quote:
Originally Posted by chessmyantidrug View Post
Low strife, thanks. My biggest concern was RAM holding me back. If DDR2 won't restrict my overclocking potential on a Q9450 or worse, then I don't see why I should reach for DDR3.

I'm really loving the diverse, in-depth feedback I'm getting here. I wish I found this site sooner.
Decent DDR2 will not restrict your OCing potential on any current CPU, unless, perhaps you intend to use extreme cooling on your CPU and motherboard to go past 600MHz FSB.

The lowest ratio most chipsets support (and the lowest ratio advisable on those that support lower) is 1:1. This means that even with DDR2-1066 at stock, you would not be limited by the memory till you went past 533Mhz FSB, which is rarrely a viable setting anyway. Also, most decent DDR2, even 2GiB sticks, are quite capable of DDR-1100+, or 550Mhz+, on a respectable motherboard.

Yes, DDR3 is faster than DDR2. However it will only improve the overclockability of your other components in extreme (and extremly rare) cases. Also, the overal performance benefit from simply having faster memory, esp when you have a CPU with 3 megs of L2 cache per-core and only a single socket, is quite small, in the single percent.

If you've got money to blow and want the best of the best, by all means go DDR3. However, if like myself, you do not think a 1-2% performance boost is worth a 15-25% increase in core system cost, go DDR2.

Quote:
Originally Posted by RussianGrimmReaper View Post
I don't think it matters... Try both and see which overclock better?
DIMM 1 and 3 OC noticably better than 2 and 4 on my Blood Iron, but many boards have little to no difference, and some have the opposite trend.
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post #36 of 68
Thread Starter 
Thanks, Blameless. I wasn't sure if DDR2 would hold back the low-end quads or not. I've seen rather affordable DDR3 floating around so I figured I'd fish for a little knowledge on the subject matter before making a decision.

Now that I've settled on DDR2, I'd like some recommendations. I never heard of Mushkin until this thread so I don't anything about their reputation. The two brands I've heard the most are Corsair and OCZ.

I'd like to know what DDR2 memory is the absolute best of the best and what it would cost me as well as some price-to-performance champions that will run 1066 MHz with low latency.
post #37 of 68
The only real options for DDR-1000+ at low latency are probably older D9GMH or D9GKX chips. You'd be limited to 1GiB per dimm with these and finding deals on them can be tough. CellShock and Team Xtreem are some of the better of these sticks that can still be found. TankGuys.biz has some very nice sets in stock.

However, at this point in time, 4GiB is a more viable amount of memory, at least if you intend to use Vista and/or do very heavy multi-tasking. 4x1GiB is usually not the greatest of ideas as four DIMMs tend to clock a good deal worse than two, and will usually require more voltage at the same time. On the other hand, virtually no 2x2GiB kits are going to do DDR-1000+ with anything less than CL5, but CL5 at such speeds is far from slow.

For 2x2GiB kits, many people prefer G.Skill, and with good reason, though there are certainly other good brands.

Some 4x2GiB sets you might consider:

http://www.newegg.com/Product/Produc...82E16820231145
http://www.newegg.com/Product/Produc...82E16820231166


For 2x1GiB kits that will clock very high (~DDR-1200, or do CL4 at 1000+):

http://www.tankguys.com/product_info...24fd0237a1fe04
http://www.tankguys.com/product_info...24fd0237a1fe04

http://www.tankguys.com/product_info...24fd0237a1fe04
http://www.tankguys.com/product_info...24fd0237a1fe04

There are other options, of course. These are just some I personally feel safest recommending.
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post #38 of 68
Thread Starter 

Which route is better performance-wise? I'd imagine 4 GB of RAM running slightly slower is better, but I could be wrong.

I've found a couple offerings of Corsair Dominator 2x2GB kits at Amazon.


I'm not really sure what the difference is save for the fact the more expensive one is probably "better" but I'm not sure if I want to spend the extra money on the same amount of RAM. Both are listed with 5-5-5-15 timings.
post #39 of 68
Thread Starter 
http://www.atacom.com/program/atacom...CODE=7191A0616

OCZ apparently timed at 5-5-5-18. I'm still not sure what these timings mean. I just know lower is better.
post #40 of 68
i just got a 790i with ddr3 ram and it boots my system faster and the startup programs load up faster. i like it so far .
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