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Crossfiring with my 5870

post #1 of 7
Thread Starter 
I really want to get a second GPU into my rig for high performance boosts in FPS. I know that I can only use 58xx cards with my current 5870.

Can I get any suggestions on which 58xx to get?

Would adding a 5830,5850 instead of another 5870 make a huge difference?

Does anyone have any performance charts specifically for mixing 58xx cards together in CF?
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My First Build
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AMD Phenom II X6 1090T Black Edition Thuban MSi 870A-G54 2x XFX ATI Radeon HD 5870 1GB in CF G.SKILL NS 8GB DDR3 
Hard DriveOptical DriveOSMonitor
Western Digital 750GB SATA LITE-ON CD/DVD Burner Microsoft Windows 7 Home Premium 64-bit 23" ASUS VH236H HD 1080p LED LCD 
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XFX Black Edition 850W COOLER MASTER HAF 912 
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post #2 of 7
I've crossfire a 5850 with a 5970. And also corssfire a 5970 with a 5870. Pretty much the same performance.

Don't be afraid to use a 5850 at the least to go with your 5870 if the price is right.

I might not use a 5830 though as it's performace is closer to a 5770 than a 5850.
    
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post #3 of 7
Quote:
Originally Posted by Max FPS View Post
I really want to get a second GPU into my rig for high performance boosts in FPS. I know that I can only use 58xx cards with my current 5870.

Can I get any suggestions on which 58xx to get?

Would adding a 5830,5850 instead of another 5870 make a huge difference?

Does anyone have any performance charts specifically for mixing 58xx cards together in CF?
You can crossfire 5870 with 5850 or 5830 as per AMD chart. Suggest get the minimum 5850. Any brand of 58xx is fine for AMD cards.

The Crossfire performance boost FPS 65-85% depends on game as compared to single 5870 at the same settings and resolution.

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ケンジ
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120GB x 4 RAID0 Raptor 300GB x 2 RAID0 CPU-370 CPU-370 
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post #4 of 7
You can go here to look at the bechmarks to see for yourself if another 5870 is worth it (when compared to the new generation of GPU's)
     
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2X 250GB Raid-0 (7200 RPM) Some 8X +/- DL Thing Windows 7 x64 Ultimate 17" 1440x900 
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120 Watts (I think) Stock Kensington CI60 A sheet of paper :) 
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post #5 of 7
I wouldn't crossfire 5870+5850, it preformances like a 5850 cf even in most of cases worse depending games. Use only "recommended config" that chart shows.

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post #6 of 7
Thread Starter 
Alright looks like I'm just gonna get another 5870. Anyone know a good place to purchase one? Seems they're out in most places. I tried making a thread on the marketplace but I guess I don't have enough rep to create one. Should I trust buying a used off of ebay?
My First Build
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X6 1090T Black Edition Thuban MSi 870A-G54 2x XFX ATI Radeon HD 5870 1GB in CF G.SKILL NS 8GB DDR3 
Hard DriveOptical DriveOSMonitor
Western Digital 750GB SATA LITE-ON CD/DVD Burner Microsoft Windows 7 Home Premium 64-bit 23" ASUS VH236H HD 1080p LED LCD 
PowerCase
XFX Black Edition 850W COOLER MASTER HAF 912 
  hide details  
Reply
My First Build
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X6 1090T Black Edition Thuban MSi 870A-G54 2x XFX ATI Radeon HD 5870 1GB in CF G.SKILL NS 8GB DDR3 
Hard DriveOptical DriveOSMonitor
Western Digital 750GB SATA LITE-ON CD/DVD Burner Microsoft Windows 7 Home Premium 64-bit 23" ASUS VH236H HD 1080p LED LCD 
PowerCase
XFX Black Edition 850W COOLER MASTER HAF 912 
  hide details  
Reply
post #7 of 7
Quote:
Originally Posted by Max FPS View Post
Alright looks like I'm just gonna get another 5870. Anyone know a good place to purchase one? Seems they're out in most places. I tried making a thread on the marketplace but I guess I don't have enough rep to create one. Should I trust buying a used off of ebay?
Wouldn't go on eBay. I bought my secondhand 5870 off a major computer forum, like this one. Users there generally (there are exceptions, of course) know how to take care of their products.
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