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Crossfire help hd radeon 7770 x2

post #1 of 3
Thread Starter 
I want to do a crossfire on my video cards i need to know what do i need to make this process work any tips are welcome! also i want to know how does this help for gaming? is it a good or bad idea.

specs:

AMD FX-6100 3.30GHz Processor; delivers powerful computing for fast-response gaming, multimedia, and other PC activities
16GB 1333MHz DDR3 Memory; helps the PC multitask demanding computing tasks
1TB 7,200RPM SATA III hard disk drive; keeps up to 1TB of files in its massive storage space
ATI Radeon HD 7770 with 1GB video memory; effectively handles demanding, high-performance games and other multimedia
Gigabit Ethernet port; offers high-speed network connectivity
Two USB 3.0 ports; allows external devices to connect with the PC at super speeds
Liquid cooling technology; keeps the PC cool during hours of intense gaming
post #2 of 3
First off, what kind of motherboard do you have? That's sort of important. Second, do you actually have the second 7770 on hand or not? If not, I recommend against that. Two of them are basically the same as a single 7870 with less RAM, less bandwidth, and compatibility issues due to the nature of dual-GPU setups. If you do want to go ahead, then you'll just need a crossfire bridge and to get CCC to recognize it. I can help you out on the hardware side of things but have not messed with any drivers myself.
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Triumvirate
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Osmium
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EleMINT 24
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CPUMotherboardGraphicsGraphics
Xeon E3-1226 v3 ASRock Z97M OC Formula Sapphire RX 480 (reference) MSI Low-Profile 750Ti 
RAMRAMHard DriveHard Drive
Kingston Blu Red - 2x4GB ADATA XPG - 2x4GB Crucial M500 960GB Samsung 840 250GB 
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WD Scorpio Blue 1TB Cooler Master 212+ PNY Quadro 600 blower Corsair H55 + Kraken G10 
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Windows 10 Pro ASUS VE247H - 1080p Gateway FPD1960 - 1280x1024 Rosewill RK9000I - Cherry MX Blue 
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AMD A10-7870K ASRock FM2A88X-ITX+ G.Skill Ripjaws X - 2x4GB @ 2400MT/s Samsung 840 120GB 
CoolingOSPowerCase
Evercool EC-HPS-810CP Windows 7 Pro 64-bit PicoPSU-120-WI-25 Mini-Box M350 
CPUMotherboardGraphicsRAM
Intel i3-4005U OEM Intel HD 4200 4GB DDR3 (soldered) 
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post #3 of 3
OP crossfire at the low end is a bad idea because the cards are very poor in terms of bandwidth and VRAM capacity. so even with CF you are going to be VRAM limited and will not be able to play at the highest settings. also CF is still not as smooth as single GPU. CF scaling is also inconsistent and varies from game to game. for consistent and smooth performance go with a HD 7950 or if you are on a tight budget grab a R9 270 / R9 270x.

http://www.newegg.com/Product/Product.aspx?Item=N82E16814127761

http://www.techpowerup.com/reviews/MSI/R9_270X_HAWK/26.html

HD 7770 - 46
R9 270X HAWK - 100

CF scaling on avg across many games is 1.6x. the R9 270X is a significantly better card with lower heat, noise and temps than HD 7770 CF.

http://www.msi.com/product/vga/R9-270X-GAMING-2G.html#overview
http://www.msi.com/product/vga/R9-270X-HAWK.html

the msi r9 270x gaming runs at 1120 mhz while the hawk runs at 1150 mhz. both cards share the same PCB design and cooler but the r9 270x gaming is priced at USD 200. so its a no-brainer. excellent cooler. low temps and noise.

http://www.guru3d.com/articles_pages/msi_radeon_r9_270x_gaming_review,10.html
http://www.youtube.com/watch?v=0OU5kDhFodo

sell the hd 7770 and get a msi r9 270x gaming thumb.gif
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