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i5 3570K Bottleneck

post #1 of 18
Thread Starter 
Good afternoon,

Just wanted to share my experience with my hardware, and see if my results are common and to be expected. I just recently installed a second MSI GTX 660ti Power Edition OC into my system, and was surprised to see that I suffered a CPU bottleneck in one of the games I played, which is World of Warcraft. Previously, my CPU pushed a single card in this game at Ultra settings with 8x AA in the new expansion areas at a locked, vsync 60 FPS. I did my research and expected to face no CPU bottleneck even at stock settings with a pair of GTX 660ti's.

And this was true for the most part with single player, GPU intensive games such as Metro: Last Light, in which the 3570k had no problem driving the pair of videocards at stock settings. Imagine my surprise when I loaded up World of Warcraft. Where my system previously pushed locked 60 FPS in areas where I tested, I was getting dips to 30 FPS. So I decided to load one of my OC profiles and Core Temp, which put the processor at 4.2GHz. At this frequency, I was still getting dips to 50-60, but nowhere near 30 FPS, and CPU usage on 2 cores at 70-90%. So I decided to test at 4.5 GHz and at this frequency, I was now getting a locked 60 FPS, and CPU usage still showing up to 90% on a couple cores. Just thought I'd share my experience, and please feel free to let me know if it sounds like I did something wrong. Thanks!

EDIT: Edited to add and see if you pros out there think that a 3770K would be a worthwhile upgrade.
Edited by rony07 - 6/3/13 at 4:27pm
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post #2 of 18
There's no way an 3570K bottlenecks 660ti in sli. Something is wrong.
Edited by Dangur - 6/3/13 at 4:36pm
post #3 of 18
2 potential route to take..

1, stop playing warcraft 3..

2, Delid and OC to 5ghz


The 3770 won't help you AT ALL, probably slow you down, as blizzard games like "REAL CORES", this is true for starcraft 2 and wow


Also disable core parking might give you ~5-10%


Which mobo do you have?
post #4 of 18
Quote:
Originally Posted by Dangur View Post

There's no way an 3570K bottlenecks 660ti in sli. Something is wrong.
PC hardware?

Problem is Blizzard games don't utilize all the cores efficiently..
post #5 of 18
Thread Starter 
That's interesting, because it seems I am most definitely being CPU bottlenecked, as increasing CPU frequency increases FPS. I know that World of Warcraft isn't very SLI friendly, but this is what I'm experiencing. Motherboard is an MSI Z77 mPower. Rest of my rig in my sig.
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post #6 of 18
I'm quite certain the problem just lies with World of Warcraft. That game has horrible support for multi-GPU setups. But the graphics aren't anywhere near extensive enough to require SLI. If you were already running 60 FPS on ultra with 1 card, what where you hoping to achieve by adding a second GPU? For WoW just disable the other card and run 1.

You will have no problem with current generation games that are coded for multi-GPU setups. For these you can certainly utilize both cards for max FPS thumb.gif

P.S. For gaming a 3770k would be a sidegrade. (very marginal improvement only on multi-core games. Therefore, not worth it).
Edited by SkillzKillz - 6/3/13 at 4:44pm
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post #7 of 18
If the game only uses a couple core's a 3770k would be a waste. You just need high clocked core's. Also you shouldn't have a bottleneck at all.

Are both cards working properly?

Have you tested the separately in slot one?

Does it play other games just fine?
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post #8 of 18
Thread Starter 
Quote:
Originally Posted by SkillzKillz View Post

I'm quite certain the problem just lies with World of Warcraft. That game has horrible support for multi-GPU setups. But the graphics aren't anywhere near extensive enough to require SLI. If you were already running 60 FPS on ultra with 1 card, what where you hoping to achieve by adding a second GPU? For WoW just disable the other card and run 1.

You will have no problem with current generation games that are coded for multi-GPU setups. For these you can certainly utilize both cards for max FPS thumb.gif

P.S. For gaming a 3770k would be a sidegrade. (very marginal improvement only on multi-core games. Therefore, not worth it).

This is what I figured. I added another card because I got tired of looking inside my windowed case and only seeing 1 videocard, and seeing as how new GTX 600 series cards came with Metro: Last Light, it would be a good measure of a new SLI setup biggrin.gif
Quote:
Originally Posted by john1016 View Post

If the game only uses a couple core's a 3770k would be a waste. You just need high clocked core's. Also you shouldn't have a bottleneck at all.

Are both cards working properly?

Have you tested the separately in slot one?

Does it play other games just fine?

Every other game works beautifully and in line with all the benchmarks for such a setup I've seen online, including Metro: Last Light, which I play at 1080p, Very High settings, and locked at 60 FPS (sans SSAA, as enabling 2x SSAA drops my frames to 45-50). If it's not a CPU bottleneck I'm experiencing in WoW: MoP, then I don't know what else it could be when increasing my CPU frequency increases my FPS, or rather, eliminates the FPS dips and I get 60 FPS locked since I play with Vsync.
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post #9 of 18
If I were you I would just disable when you play WOW. It's just a game issue. Do you have the multi core option checked in the game settings? Probably already is and wont help, but worth checking.
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post #10 of 18
Upgrade your drivers, or disable SLI for WoW.
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