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16x - 4x crossfire recommended?

post #1 of 2
Thread Starter 
My gaming budget current setup is an i5 3470 @ 3.8, ASRock Z77 PRO, 8 gig ram, PC Power and Cooling 600 watt psu, and a single MSI 7850. Most of this stuff is used, hence the budget.

My monitor is 1080p @ 60hz. Considering XFire with the hopes that the new beta drivers are worth it. Would my board with 16x - 4x be an issue? Would I not get 99% usage from both cards?

I play a little COD---no biggie running that. I mostly play BF3 and will definitely play BF4. I'm surprised how well this setup does actually. Perhaps it's not recommended to upgrade till later. The thing is, the 9K series GPU's will cost an arm and a leg. I can get two 7850's for less than 1 cost when they came out last year. $270 each vs $250 now for two (used).

I read mixed "reviews" on Xfire with 16x, 4x. Some clearly say it doesn't matter. Others say stay away unless it's 8x, 8x.
post #2 of 2
It'd probably be a performance hit in the realm of ~10% or so.

There's a HardOCP article comparing GTX 480s in SLI over 4x links and depending on the game there wasn't too much of a difference.

http://www.hardocp.com/article/2010/08/25/gtx_480_sli_pcie_bandwidth_perf_x16x16_vs_x4x4#.UgEcDtKqmzk
Das Rig, Ja?
(12 items)
 
  
CPUMotherboardGraphicsRAM
AMD Ryzen 1700 Asus Crosshair VI EVGA 1080Ti SC2 2x16G GSkill RGB 3200 
Hard DriveCoolingOSMonitor
500 GB 960 EVO Enermax T50A-BVT Windows 10 Pro 27" Asus 
KeyboardPowerCaseMouse
Logitech K350 EVGA 1600G2 Fractal Define C Rosewill M55 RGB 
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Das Rig, Ja?
(12 items)
 
  
CPUMotherboardGraphicsRAM
AMD Ryzen 1700 Asus Crosshair VI EVGA 1080Ti SC2 2x16G GSkill RGB 3200 
Hard DriveCoolingOSMonitor
500 GB 960 EVO Enermax T50A-BVT Windows 10 Pro 27" Asus 
KeyboardPowerCaseMouse
Logitech K350 EVGA 1600G2 Fractal Define C Rosewill M55 RGB 
  hide details  
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