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5970 CPU BottleNecks?

Last response: in Graphics & Displays
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December 1, 2009 10:14:45 PM

I'm Curious if anyone has tried the radeon 5XXX series (specifically the 5970) with a Dual Core CPU.
I currently have a Core 2 8400 that easily overclocks to 3.9ghz. After reading the balanced platform articles I'm uncertain how much of a bottleneck the 8400 would be? I would only be playing in 1080P resolution and it appears that at that setting the bottleneck is minimal in most games with the 4870X2.

My planned upgrade path would be to purchase 5970 sometime this year and pair it with my Dual Core 8400. I'm sure it would bottleneck some... but lets be honest... anything over a steady 60FPS in any game is overkill. I'd like to skip the entire "Quad" CPU Generation and wait for 6 cores.

What do you think?
Has anyone actually bechmarked these with Dual Cores?

More about : 5970 cpu bottlenecks

December 1, 2009 10:40:32 PM

http://www.tomshardware.com/reviews/build-balanced-plat...

In Far Cry 2, a stock E8400 with a GTX 295 sees almost a 40 FPS gain at 1920x1200. The gain wouldn't be as big, but there is a CPU bottleneck there. I'm betting you can see a 20 FPS difference in FC2, but that's more of a guesstimate.

Everyone generally agrees that you should get an X58 with a high end 5000 series card.
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December 2, 2009 3:02:56 AM

optional22 said:
http://www.tomshardware.com/reviews/build-balanced-plat...

In Far Cry 2, a stock E8400 with a GTX 295 sees almost a 40 FPS gain at 1920x1200. The gain wouldn't be as big, but there is a CPU bottleneck there. I'm betting you can see a 20 FPS difference in FC2, but that's more of a guesstimate.

Everyone generally agrees that you should get an X58 with a high end 5000 series card.



True... but the GTX295 doesn't like a dual core period. The 4870X2 isn't as dramatic. And the 8400 isn't overclocked in those charts. I'm thinking along these lines: I have $600 to spend. Adding a 5970 will undoubtedly allow me to play pretty much any current game in 1080P despite the CPU bottle neck. Looking into the future... I don't see any games for a year out that will really push this system any harder than Crysis. Then I upgrade to 6 Cores... then I add another 5970 (if needed) when the price drops.

OR... I spend $400 upgrading to Core i5 and settling for a 4870 in Crossfire.

Hmmm....
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December 2, 2009 3:18:07 AM

before you spend 600 dollars on the card, first find out if you can fit something that is 13.5 inches long inside your case with out trouble?
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December 2, 2009 3:37:36 AM

Well, Gulftown and Istanbul(I think thats the next gen 6 core AMD chip) is coming out next year at the Q1 or Q2, so I'd say get the 5970. However, I have to ask.... What screen resolution are you planning to play on? Because a 5870 or the GTX285 would be quite fine, in my opinion of course. Oh, by the way..... I'm not so sure bout the Istanbul release date, the Gulftown's is Q1 Q2 though. And What's your budget range? I don't understand how you plan on splitting up the buy. Because if you bought the Gulftown/Istanbul and the 5970 it'd be wayyyyyyyy more money than sticking with 4870x2 and getting an I5.

Side Note: Soldier, ya lucky bastard, I've been looking everywhere for one of those :( 
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December 2, 2009 3:14:58 PM

I don't really have a budget... I'm just thinking that upgrading to I5 or I7 doesn't make much sense when it'll be almost instantly outdated. I would of course upgrade my CPU, MB, and Ram at some point. On the other hand: I don't really expect the Gulftown or Istanbul to blow away even the i5 from a gaming standpoint. Hmmmm... Screen Resolution will be 1080P or 1900x1080. I could probably get by fine with a 5870 but the prices are outrageous at the moment. 500+ dollars. It's probably best to just wait a few months... I just have an itchy buying finger :) 
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December 2, 2009 3:36:22 PM

before committing 600 dollars , would you like to at least have a look at nvidia's next gen ? i know its frustrating to wait , but...
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December 2, 2009 8:05:59 PM

Yes... I'll probably wait. Can't get a 5970 now even if I wanted too. Very limited supply.
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