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800 or 1066?

post #1 of 13
Thread Starter 
What rated speed RAM should I get? I'm planning on upgrading from 2GB DDR2-800 to 4GB, but not sure what speed to get. It will be linked with my E8400 at 445x9 (4.0ghz).
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post #2 of 13
1066 2x2gb ,800 mhz can limit overclock.
    
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post #3 of 13
tbh if you overclocked the ram you have now, I don't think you're gonna see much difference in 4 gigs of 1066, unless you are using memory intensive applications.

But as ram is so cheap atm, you might as well go for the 1066
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post #4 of 13
Quote:
Originally Posted by tmaz42o View Post
What rated speed RAM should I get? I'm planning on upgrading from 2GB DDR2-800 to 4GB, but not sure what speed to get. It will be linked with my E8400 at 445x9 (4.0ghz).
I say 1066 then you don´t have to run 1 : 1, because it´s no good on a Intel chipset board.

Here´s an example of how it may look between 800 and 1066.
Using Everest and Crysis Benchmark Tool.

We say you go with:

445 9 4005 and get your 800 memory up to 890 4-4-4-12 Performence Level 7

Read 9334
Write 9470
Copy 8661
Lat 53,9

Crysis 1600x1200 Medium Q 0xAA 50,90 fps

445 9 4005 and 1066 memory @1069 5-5-5-15 Performance Level 7

Read 9605
Write 9471
Copy 9538
Lat 52,9

Crysis 1600x1200 Medium Q 0xAA 51,37 fps

445 9 4005 and get your 1066 up to 1116 5-5-5-15 Performance Level 7
Read 9727
Write 9472
Copy 9505
Lat 52,0

Crysis 1600x1200 Medium Q 0xAA 51,58 fps

Fps is allmost the same.

Not much different in Read, Write, Latency, but it´s better then going 1 : 1.
Biggest different is thou with Copy.

Higher bandwidth and lower latency probably going to make your system a bit more responsive.

So I say go for 1066 and do some OC.

Good luck
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post #5 of 13
Quote:
Originally Posted by Ghostleader View Post
I say 1066 then you don´t have to run 1 : 1, because it´s no good on a Intel chipset board.

Here´s an example of how it may look between 800 and 1066.
Using Everest and Crysis Benchmark Tool.

We say you go with:

445 9 4005 and get your 800 memory up to 890 4-4-4-12 Performence Level 7

Read 9334
Write 9470
Copy 8661
Lat 53,9

Crysis 1600x1200 Medium Q 0xAA 50,90 fps

445 9 4005 and 1066 memory @1069 5-5-5-15 Performance Level 7

Read 9605
Write 9471
Copy 9538
Lat 52,9

Crysis 1600x1200 Medium Q 0xAA 51,37 fps

445 9 4005 and get your 1066 up to 1116 5-5-5-15 Performance Level 7
Read 9727
Write 9472
Copy 9505
Lat 52,0

Crysis 1600x1200 Medium Q 0xAA 51,58 fps

Fps is allmost the same.

Not much different in Read, Write, Latency, but it´s better then going 1 : 1.
Biggest different is thou with Copy.

Higher bandwidth and lower latency probably going to make your system a bit more responsive.

So I say go for 1066 and do some OC.

Good luck
I run my DDR2 800 at 4:5 flawlessly OC'ed.
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post #6 of 13
In most cases, you can oc 15% to 20% on ddr2-800 but ddr2-1000/1066, the factory OCed ram will give you more headroom. Plus, the price ddr2-1000/1066 is pretty cheap now so get the ddr2-1000/1066.
post #7 of 13
Quote:
Originally Posted by MrSpock2002 View Post
I run my DDR2 800 at 4:5 flawlessly OC'ed.
ok im confused. i thought running the ram 1:1 is supposed to be the best. am i mistaken. please enlighten me. i really want to know
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post #8 of 13
Quote:
Originally Posted by circeseye View Post
ok im confused. i thought running the ram 1:1 is supposed to be the best. am i mistaken. please enlighten me. i really want to know
That notion of 1:1 being the best is a pervasive old-school thing. At one time this was true it tended to offer the most stability and certainly the easiest, but over the years other ratios like 5/6, 5/4, 3/2, and 2/1 have proven themselves to be stable and even very useful. In fact I can not recall running 1:1 ever being the "best" for ddr2- certainly for SDRAM it was. IDK about DDR1- I skipped that generation all together.
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post #9 of 13
1:1 for ddr was advisable if your system and ram could do it. I'm at 1:1 right now. It also depended on your cpu multiplier. I'm glad this has been mentioned, I was planning on doing 1:1 for my ballistix 1066 soon.
post #10 of 13
so all ratios aside then, if i am anal and i want my pc to run anally fast i should run the fsb and the memory as fast as they can go?
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