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Smart time to upgrade to 6970 CFX? - Page 2

post #11 of 21
just turn vsync on when you get the other card. Theres no need to see 300 fps.
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post #12 of 21
no you won't bottle neck!

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post #13 of 21
I'm in almost same situation. Wants to upgrade to 6970 CF.

The question is, if my high quality 650W PSU will be enough? Its a NZXT HALE90 650W with 54A on the 12V rail.
http://www.nzxt.com/new/products/pow...es/hale90_650w
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post #14 of 21
Quote:
Originally Posted by critical46 View Post
no you won't bottle neck!

That is showing a SINGLE GPU! He will definitely bottleneck with a multi-GPU configuration. Clock-for-clock, the Phenom II's just aren't fast enough to keep up. When I went from a Phenom II X4 @ 4 GHz to my current i7, I saw a huge increase with my old 5970. 6000 series chips are even more advanced and faster, so the bottleneck will only increase.

If you still don't believe me, I'll post some benchmarks I took from before and after my upgrade to i7, it's a big difference!

Quote:
Originally Posted by Inside View Post
I'm in almost same situation. Wants to upgrade to 6970 CF.

The question is, if my high quality 650W PSU will be enough? Its a NZXT HALE90 650W with 54A on the 12V rail.
http://www.nzxt.com/new/products/pow...es/hale90_650w
No, a 6970 pulls 250w at stock clocks. There wouldn't be enough power to go around when you take your CPU and other components into account.
Edited by JadedFloridian - 10/20/11 at 5:36am
    
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post #15 of 21
Its a tough decision. Your board obviously needs to be replaced, however, it's probable that you will need a new chip in order to maximize the true benefits of crossfire 6970s. If you buy a new AMD board, you'll be able to use your current chip, but probably need to upgrade again to 2500K to remove the bottleneck.

I think what I would do is get a good AMD AM3+ socket board, a good corsair 750W PSU (TX is non-modular, HX is semi modular and AX is fully modular, go with one of those), and your 2nd 6970. It will increase your performance, and hopefully AMD gets something together that will fit you board down the road.
post #16 of 21
Thread Starter 
Quote:
Originally Posted by yanks8981 View Post
Its a tough decision. Your board obviously needs to be replaced, however, it's probable that you will need a new chip in order to maximize the true benefits of crossfire 6970s. If you buy a new AMD board, you'll be able to use your current chip, but probably need to upgrade again to 2500K to remove the bottleneck.

I think what I would do is get a good AMD AM3+ socket board, a good corsair 750W PSU (TX is non-modular, HX is semi modular and AX is fully modular, go with one of those), and your 2nd 6970. It will increase your performance, and hopefully AMD gets something together that will fit you board down the road.
is it a significant bottleneck to the point where its not worth upgrading? Like I said in my OP im interested in acheving solid 55+ fps in 1920x1080 max settings max AA
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My Current Rig
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post #17 of 21
Thread Starter 
Quote:
Originally Posted by Inside View Post
I'm in almost same situation. Wants to upgrade to 6970 CF.

The question is, if my high quality 650W PSU will be enough? Its a NZXT HALE90 650W with 54A on the 12V rail.
http://www.nzxt.com/new/products/pow...es/hale90_650w
please dont hijack my thread, thanks
My Current Rig
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My Current Rig
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Intel Core i5 2500k 4.5 GHz ASUS P8Z68-V PRO Radeon HD 6970 CFX 8.00 GB Dual-Channel DDR3 @ 1600MHz (9-9-9-21) 
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post #18 of 21
Quote:
Originally Posted by Tradio View Post
is it a significant bottleneck to the point where its not worth upgrading? Like I said in my OP im interested in acheving solid 55+ fps in 1920x1080 max settings max AA
I would say you will see worth while increases.
post #19 of 21
Here's an example of the bottleneck I was talking about. First picture is a Phenom II @ 4.0 GHz, second is my i7 950 at stock clocks (3.06 GHz). This is with my old 5970 @ 850/1200.



    
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post #20 of 21
Thread Starter 
Quote:
Originally Posted by JadedFloridian View Post
Here's an example of the bottleneck I was talking about. First picture is a Phenom II @ 4.0 GHz, second is my i7 950 at stock clocks (3.06 GHz). This is with my old 5970 @ 850/1200.



+1 rep, good post

there is a big diff in minimum framerate - had no idea that there was such a big gap between the Phenom II's and the core i7s (in terms of gaming)

at least im relieved to see that the phenom II's can still produce min framerates of over 60 fps (at least with Far Cry 2). But yea, I am very dissapointed in learning that there is legitimate bottleneck with my cpu
My Current Rig
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Intel Core i5 2500k 4.5 GHz ASUS P8Z68-V PRO Radeon HD 6970 CFX 8.00 GB Dual-Channel DDR3 @ 1600MHz (9-9-9-21) 
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My Current Rig
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Intel Core i5 2500k 4.5 GHz ASUS P8Z68-V PRO Radeon HD 6970 CFX 8.00 GB Dual-Channel DDR3 @ 1600MHz (9-9-9-21) 
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120GB Intel 320 SSD Cooler Master Hyper 212+ MS Windows 7 64-bit SP1 Acer H223H 
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