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Is there even a reason to go beyond 1600mhz on DDR3 RAM anymore for OCing?

post #1 of 22
Thread Starter 
I'm going through the Devils Canyon overclocking guides as best I can as I plan on upgrading to a i7 4790k setup that I plan to moderately overclock with air cooling * I don't care for dealing with tubes and and crap for my gaming rigs*

I know on my existing setup with my i5 2500k, I was able to bump up the speed with my ROG Maximum board with the multiplier unlock to 4.6ghz in the BIOS and the FSB wasn't even touched unless I wanted to go beyond 4.6ghz, and I would have to start raising the memory FSB speed which I never bothered with.

I plan on using a Asus ROG Hero motherboard for this build, so its well capable of overclocking the 4790k. But i'm wondering if there is any justifable reason to spend extra on the 1866mhz and above DDR3 RAM when I upgrade to 16 gigs or not really?


G.Skill models


DDR3 2400 clock speed

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231589


DDR3 1866 clock speed

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231528


DDR 3 1600 clock speed

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231628
post #2 of 22
you might see at least 10% more sustained fps when cpu limited, between 1600 and 2400, depending on the game.

Not that common to be cpu limited on intel, though. Playing games with extreme active unit numbers, single thread limited game engine? Maybe 144hz monitor?

edit: I'd take the significantly faster ram and 4.6ghz, over 5ghz, if I had to chose.
Edited by Tivan - 1/10/15 at 2:40pm
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post #3 of 22
Thread Starter 
Quote:
Originally Posted by Tivan View Post

you might see at least 10% more sustained fps when cpu limited, between 1600 and 2400, depending on the game.

Not that common to be cpu limited on intel, though. Playing games with extreme active unit numbers, single thread limited game engine? Maybe 144hz monitor?

I'm gaming at 1200p at 60 hertz
post #4 of 22
Quote:
Originally Posted by Arct1c0n View Post

I'm gaming at 1200p at 60 hertz

well you have to know if you need the slightly higher sustained min/max fps potential that faster ram has to offer (in the games I tested/other people tested) c;

edit: basically if you never drop under 60 fps, or if you do and it's because of your GPU being fully loaded, then don't worry about ram/OCing higher.
edit: But faster ram might help you in cases where a stronger CPU/OC would help as well. So. (and of course the effects of stronger cpu, higher OC, faster RAM, can add up.)
Edited by Tivan - 1/10/15 at 2:49pm
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post #5 of 22
Thread Starter 
Quote:
Originally Posted by Tivan View Post

well you have to know if you need the slightly higher sustained min/max fps potential that faster ram has to offer (in the games I tested/other people tested) c;

edit: basically if you never drop under 60 fps, or if you do and it's because of your GPU being fully loaded, then don't worry about ram/OCing higher.



I'm just wondering if its going to make it easier to push the 4790k to its limits with having higher FSB memory after upping the multplier on the BIOS. I'm retiring my 2500k as its starting to get aged in some games and going i7 is the only worthwhile route beyond waiting for skylake
post #6 of 22
Quote:
Originally Posted by Arct1c0n View Post

I'm just wondering if its going to make it easier to push the 4790k to its limits with having higher FSB memory after upping the multplier on the BIOS. I'm retiring my 2500k as its starting to get aged in some games and going i7 is the only worthwhile route beyond waiting for skylake

I don't think it'll be easier to OC with faster ram. Probably won't impact OC potential negatively much either, though. But there's games where you will see more maximum/sustained minimum FPS with faster ram. So I'd recommend fast ram if you want the least potential of CPU bottleneck.

If you game with your GPU at 100% load always, then you will never be cpu bottlenecked, though. edit: Because then you're GPU limited. Of course depends on game you play and settings you use.
Edited by Tivan - 1/10/15 at 2:56pm
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post #7 of 22
My honest opinion is that DDR3-1833 is the sweet spot now. I didn't see more than a couple (like 2-3) FPS improvement going from 1866-9-9-9-35 to 2133-10-10-10-41 on my 4770K machine, and the cost of the 2133 was substantially higher at the time. World of Warcraft showed the biggest improvement, almost 4-5 FPS on average at 2560x1600p with SLI Titans when I was running 3930K @ 4.2 GHz on a X79 platform. I ended up pulling the 2133 out and going back to 1866 because I had 32GB of that vs. 16GB of the 2133 Dominator Pros.

My recommendation is get something cost effective if you're going to invest in DDR3 technology. It's a dead platform moving forward, IMHO - so put what you need to in it to get the performance you require. Save the rest for when DDR4 timings and prices come down.

Greg
post #8 of 22
Quote:
Originally Posted by Arct1c0n View Post

I'm just wondering if its going to make it easier to push the 4790k to its limits with having higher FSB memory after upping the multplier on the BIOS. I'm retiring my 2500k as its starting to get aged in some games and going i7 is the only worthwhile route beyond waiting for skylake

It won't. If anything it will make it more difficult, because you are putting more strain on the cpu's internal memory controller.
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post #9 of 22
Agreed with hammong. Just don't go buy DDR1600 if you can have DDR2133 for a mere 10-20 dollars more or something. I'm not sure about the pricing right now so c;
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post #10 of 22
Thread Starter 
G.Skill 2400 at $140 right now

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231589
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