Will my old rig handle a Crossfire setup??

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konspiracy

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Feb 26, 2013
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Hi guys!

This is my current setup:
GPU: ASUS Radeon HD 7850 DCUII (2 GB)
PSU: corsair CMPSU-650TX-650W (6 years old)
MB: Asus P5E3 (6 years old)
CPU: Intel Core 2 Quad Core Q9300 2.5GHz (6 years old)
CPU cooler: arctic freezer
RAM: Corsair XMS3 8GB (4x2GB sticks) @ 1333 MHz CL9 (new)
HDD: Seagate Barracuda 7200.10 ST3250410AS 250GB (6 years old)
External HDD: Seagate 1TB
Case: Thermaltake Soprano RS 100 (Full tower) (6 years old)

Im thinking to add another 7850 dcuII to my rig, in order to get maximum FPS on my 1080p 23'' monitor while gaming. But, im not sure if my rig is able to handle this because its so old. My psu lists its "crossfire ready" along with my motherboard, but is there a possibility that after 6 years of use it wont be strong enough for supporting this crossfire setup?? is there any way I can test my psu to see if it still in a good shape??
 
Solution
tiny voices
If you are trying to get better FPS, ditch the 7850 and get a single better card. Your CPU will be an issue if you go with a much more powerful card. The same issue as the bottleneck with crossfire.

You will probably get a 10-30fps boost from corssfire, you WILL NOT get the most out of it. Your CPU will be running on 100% to keep up in games. It depends on the game. Some games will bottleneck a little. Others will be so bad that adding another card won't even be worth it.
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konspiracy

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Feb 26, 2013
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ok so I should buy a new psu anyway?? when I asked about this some months ago, they told me these psu last 15 years+++!!! And what exactly is the impact of bottleneck?? will I get low fps?? And what if I OC my cpu?? i can easily get it to run @ 3 GHz and my ram @ 1600, will there still be this bottleneck
??
 
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K

konspiracy

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Feb 26, 2013
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Thanks for the fast replies, I really cant keep up :p
What you're saying doesn't sound so good... Can you please explain to me how you are so sure that the bottleneck will be so large?? Because I can' understand it... At this moment my cpu isn't making any noticeable bottleneck to the gpu (I have checked the fps while switching settings like texture filters etc.), so how is it possible that the second gpu wont add any performance at all??? And what if I push my cpu even more (up to 3,5ghz)??...

Maybe what you mean is that I wont get the full potential of the two cards??? Because if that is the case, I'm not really concerned about getting the max out of the crossfire setup (maybe my initial post was a little confusing). What I'm looking for is a little push on my fps. A slight performance improvement. just to get close to 60 fps.. I'm really sorry that I didnt mention that the 1080p monitor I'm using has a 60 Hz refresh rate, so 60 fps is the maximum I can demand. Currently im having 35-58 fps while playing ACIV:blackflag, which is good, but when these 35 fps occur, it can be really frustrating.. so what I need is just a steady 40++, like a +10 fps bonus from the crossfire.. You don't think this is possible??
 
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tiny voices

tiny voices

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Sep 6, 2012
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If you are trying to get better FPS, ditch the 7850 and get a single better card. Your CPU will be an issue if you go with a much more powerful card. The same issue as the bottleneck with crossfire.

You will probably get a 10-30fps boost from corssfire, you WILL NOT get the most out of it. Your CPU will be running on 100% to keep up in games. It depends on the game. Some games will bottleneck a little. Others will be so bad that adding another card won't even be worth it.
 
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K

konspiracy

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Feb 26, 2013
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tiny voices thank you for the recommendations.
Since I dont really care of getting the most out of the crossifre setup, and i just need this extra 10 fps to enjoy my games, i think i will try it. I think its the cheapest solution because a better card will be more expensive than a second 7850..
 
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miner4coin

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Dec 16, 2013
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HI tiny voices's how can I send you a message I have a few questions. Thanks. Sorry for posting here I just don't know how else to get the right person to reply.



 
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