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Asus p8p67 and Crossfire Shapphire 7850 OC

bsjavi

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Processor Intel I7 2600K @ 4.03ghz HT activated
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Video Card(s) Shapphire HD7850 OC
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Hi,
I have a question, I can do crossfire and get the most performance from them?
Thank you.
 
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Not quite. The second PCI-e will run at x4 so you will loose some FPS as compared with the more usual x8 x8.
 

cadaveca

My name is Dave
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Not quite. The second PCI-e will run at x4 so you will loose some FPS as compared with the more usual x8 x8.

16x4 with 6950's = roughly 5% performance loss, up to 50%, depending on the game.

PCIE2 slot runs @ x1 link by default, and USB3 uses one of the lanes to make x4 link, so you may also lose other functionality when using both PCIE slots.
 

bsjavi

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System Name Bsjavi's PC
Processor Intel I7 2600K @ 4.03ghz HT activated
Motherboard Asus P8P67 B3
Cooling Arctic cooling Freezer Xtreme Rev 2.0
Memory Kingston HyperX 1600 2x4gb 9-9-9-27
Video Card(s) Shapphire HD7850 OC
Storage Seagate Barracuda 7200 2TB
Case Thermaltake Commander MS-I
Power Supply OCZ ModXtream Pro 600W
Software Windows 7 x64
What motherboard would you recommend? Make it cheap.
Thanks.
 

cadaveca

My name is Dave
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Anything with x8/x8 PCIe and cooling on CPU VRM section should be fine.
 
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Video Card(s) Gigabyte GTX 1050 Ti / INNO3D RTX 2060
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bsjavi

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System Name Bsjavi's PC
Processor Intel I7 2600K @ 4.03ghz HT activated
Motherboard Asus P8P67 B3
Cooling Arctic cooling Freezer Xtreme Rev 2.0
Memory Kingston HyperX 1600 2x4gb 9-9-9-27
Video Card(s) Shapphire HD7850 OC
Storage Seagate Barracuda 7200 2TB
Case Thermaltake Commander MS-I
Power Supply OCZ ModXtream Pro 600W
Software Windows 7 x64
Joined
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Memory 16 GB Kingston HyperX / 16 GB G.Skill Ripjaws X
Video Card(s) Gigabyte GTX 1050 Ti / INNO3D RTX 2060
Storage SSD, some WD and lots of Samsungs
Display(s) BenQ GW2470 / LG UHD 43" TV
Case Cooler Master CM690 II Advanced / Thermaltake Core v31
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Z77 extreme 4 is good. x8 x8 is fine.
 
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from my experience with x16 x4 crossfire(6950s) it sucked i was best playing with crossfire disabled
i will never be doing x16 x4 again and would not recommend it to anyone

i got a cheapish board what does pretty nice x8 x8 Asrock extreme3 gen 3 z68
here is a link $86 on newegg
Open Box: ASRock Z68 Extreme3 Gen3 LGA 1155 Intel ...
 

Frick

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from my experience with x16 x4 crossfire(6950s) it sucked i was best playing with crossfire disabled
i will never be doing x16 x4 again and would not recommend it to anyone

Why did it suck? You shouldn't loose much with those cards (as said).
 
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