What is the best Crossfire/SLI performance I can get for my build without bottlenecking?

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twneal

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Dec 5, 2013
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I want to know what is the best performing pair of CrossFire/SLI GPUs that will operate in my build without bottlenecking. Here is my build in-progress:

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: AMD FX-8320 3.5GHz 8-Core Processor ($139.99 @ Amazon)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.98 @ OutletPC)
Motherboard: Gigabyte GA-990FXA-UD3 ATX AM3+ Motherboard ($115.98 @ SuperBiiz)
Memory: G.Skill Sniper 8GB (2 x 4GB) DDR3-1600 Memory ($52.99 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($59.98 @ OutletPC)
Case: Antec One ATX Mid Tower Case ($29.99 @ NCIX US)
Power Supply: Xion 1000W 80+ Bronze Certified Semi-Modular ATX Power Supply ($104.99 @ Newegg)
Optical Drive: Lite-On iHAS124-04 DVD/CD Writer ($14.99 @ Newegg)
Total: $548.89
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-12-16 07:24 EST-0500)


Also, I've seen some claims that Crossfire actually hurts performance. Please offer your opinions on this matter. Thanks in advance!
 
Solution
sincreator
Check this out. http://www.tomshardware.com/reviews/fx-8350-core-i7-3770k-gaming-bottleneck,3407.html If you want top tier performance in a multi card configuration, you will want an i5/i7. Now there isn't much of a difference, but enough to see that the Intel system does pull ahead. This is why I am switching to an Intel system after christmas. I plan to get a second 7950 or 280x, and I don't want any games being held back in any way. I also don't want to have to look at another CPU upgrade for a couple of years at least. It will be an i7 for me.
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twneal

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Dec 5, 2013
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Could you please clarify: do you mean to say that the processor is strong enough to handle any two-way Crossfire/SLI on the current market, or do you mean to say that processors only bottleneck individual GPUs and Crossfiring them does not increase the chance of bottleneck? Hypothetically, would I be able to do a four-way Crossfire of 290x without bottlenecking?
 
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H4X3R

H4X3R

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Aug 11, 2013
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Your cpu is "strong" enpugh to support 2 way sli /xfire. For quad i think a i7 lga2011 platform wpuld be better
 
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sincreator

sincreator

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May 27, 2009
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Check this out. http://www.tomshardware.com/reviews/fx-8350-core-i7-3770k-gaming-bottleneck,3407.html If you want top tier performance in a multi card configuration, you will want an i5/i7. Now there isn't much of a difference, but enough to see that the Intel system does pull ahead. This is why I am switching to an Intel system after christmas. I plan to get a second 7950 or 280x, and I don't want any games being held back in any way. I also don't want to have to look at another CPU upgrade for a couple of years at least. It will be an i7 for me.
 
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twneal

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Dec 5, 2013
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I doubt I'll ever Crossfire with four, I was merely speaking hypothetically. I very well may Crossfire with two 290 or 290x GPUs though, depending on how their prices drop by next Christmas.







Interesting read. The 8320 is $50 cheaper, so if there isn't much of a noticeable difference, I'll probably just stick with AMD.
 
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