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785g Crossfire?

post #1 of 2
Thread Starter 
For the longest time I thought my Gigabyte GA-MA785G-UD3H board supported Crossfire X, seeing as how it had crossfire printed all across the box and had 2 PCIe slots.

Well now I've done some more research and apparently the chipset only supports Hybrid crossfire...(should've read the fine-print, huh?mad.gif).

So here's a thread asking anyone with a 785g board, or any relevant knowledge on the matter, for assistance. Would it work in crossfire with 2 cards? I was specifically thinking of mating a pair of 6850s. Even if crossfire did work...would the x4 lane speed bottleneck the card in any way?

My one glimmer of hope is this thread, where a user in my exact situation was able to run Crossfire successfully, but I'd need someone else to comment on the matter before I buy 2 graphics cards.
post #2 of 2
Quote:
Originally Posted by naizarak;15279731 
For the longest time I thought my Gigabyte GA-MA785G-UD3H board supported Crossfire X, seeing as how it had crossfire printed all across the box and had 2 PCIe slots.

Well now I've done some more research and apparently the chipset only supports Hybrid crossfire...(should've read the fine-print, huh?mad.gif).

So here's a thread asking anyone with a 785g board, or any relevant knowledge on the matter, for assistance. Would it work in crossfire with 2 cards? I was specifically thinking of mating a pair of 6850s. Even if crossfire did work...would the x4 lane speed bottleneck the card in any way?

My one glimmer of hope is this thread, where a user in my exact situation was able to run Crossfire successfully, but I'd need someone else to comment on the matter before I buy 2 graphics cards.

IMO as far as there are two PCI-e slots, CF will work.

The 4x lane on one of the slots will slow you down only in heavy loads. With 2x6850, playing on less-than-insane resolutions with maxed graphics, you should be fine.
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My Rig
(14 items)
 
Ex-wife's Rig
(15 items)
 
 
CPUMotherboardGraphicsRAM
Core i5 4460 AsRock H81M-DG4 Sapphire Rx470 Platinum KVR 1600 16Gb 
Hard DriveHard DriveCoolingOS
2x Seagate 3Tb Samsung 850 EVO 120 Scythe Ninja 3 Rev.B Windows 10 Pro 
MonitorKeyboardPowerCase
Fujitsu Siemens A17-2A Logitech K280e SuperFlower SF-550K12XP Thermaltake Versa H25 
MouseAudio
Logitech G402 Sony MDR XD150 
CPUMotherboardGraphicsRAM
Athlon 750K 4.0Ghz AsRock FM2A75 Pro4+ Sapphire R9 270X Dual-X Kingston 2x4Gb 1600 
Hard DriveHard DriveOptical DriveCooling
Samsung 850 EVO 120  Western Digital 320Gb LiteON DVD-RW CoolerMaster Hyper Z600 
OSMonitorKeyboardPower
Windows 7 Pro x64 Toshiba 32" FullHD TV Logitech FSP Hexa 550 
CaseMouse
DeLUX Logitech 
  hide details  
Reply
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