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Which ram is faster

post #1 of 11
Thread Starter 
Same brand, Kingston Hyper X
2000mhz 9-9-9-27 or
1800mhz 7-7-7-20?
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post #2 of 11
I would go with the 1800 because of the better timings, but that's me.
 
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post #3 of 11
The answer is yes. Try wrapping your head around this.

Generally speaking, though: the more random your memory usage is, the better the 1800 CAS 7 will be.
    
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post #4 of 11
It's a bandwidth vs response thing. Depends on the application.
post #5 of 11
Prolly the same IC's

that being said they would be able to overclock or underclock to said speed and timings

So go with the cheapest set of the two
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post #6 of 11
amd likes lower timings vs higher speeds
post #7 of 11
Thread Starter 
Quote:
Originally Posted by ffejrxx;12697391 
amd likes lower timings vs higher speeds

That was my thinking.

Price is $10 difference.
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post #8 of 11
1800 7-7-7 would most likely beat it. If not, match.
post #9 of 11
did some tests

1800(7-7-7-20) vs. 2000(9-9-9-27)

CASE 1: 1800 (CPU/NB 3145) is better than 2000 (CPU/NB 3000)
CASE 2: 1800 (CPU/NB 2920) is not better than 2000 (CPU/NB 3000)

CPU was @ 4045 for RAM @ 1800
CPU was @ 4000 for RAM @ 2000
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post #10 of 11
I will usually recommend whatever else over 2000 CL9. 2000Mhz to begin with can be tougher to stabilize than the lower speed, but with 1600 or 1800 at lower timings your results can actually beat 2000 @ CL9.

I am beating IOSEFINI's 2000 CL9 benchmark with 1600 CL6-8-6 RAM; with the same settings (4Ghz CPU on the dot, and 3Ghz NB) and my RAM at 1600 CL6-8-6, I get 10.65GB/s. Additionally my latencies are well below 50ns.

I'd be willing to be that 1800 7-7-7 vs 2000 9-9-9 at equal clocks & all, 1800 7-7-7 would win.

Also a couple hundred Mhz difference in CPU-NB can easily tell the difference between win and lose.
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