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AMD Radeon HD 6850 vs 2x 6770's

post #1 of 25
Thread Starter 
I am trying to figure out the performance difference between a single 6850 and xfired 6770's.

Also any PC Upgrades that you guys can recommend would be greatly appreciated ($600 is my current limit)

My current PC:
Windows 7 64bit
AMD Phenom II x6 1090T (clocked as a 3.6 quad core currently)
AMD HD Radeon 6850 (buddy of mine said he'd sell me the 2 6770's for $50 total since he recently changed to nVidia)
8GB RAM (not sure the brand ATM)
Motherboard is the M4A88TD-V EVO/USB 3
Edited by Anadriall - 1/7/12 at 6:16pm
post #2 of 25
xifre 6770s will be about equal to an HD5870 / HD6950

it will consume more power compared to a single card.
you could overclock the 6850 to make it run at 6870 speed
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post #3 of 25
I'm not sure it's worth it in the long run. If you are gonna buy a 7000 series card later, go for it. Otherwise 6850 has a brighter future because it shines in crossfire.
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post #4 of 25
Why not buy a second 6850 and crossfire them? I would also get a better PSU to handle the draw on the 12v rail. Huge performance upgrade is using a SSD you'll play games and load screens are very fast. Add your rig to your signature.
post #5 of 25
Option 1) Take the 2 6770's for $50 and sell them on CL or here for profit -> take profit to buy another 6850 for crossfire.

Option 2) Buy the 2 6770's for $50 and sell them and your 6850 -> take $$ and buy 6950/70
It's so little!
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It's so little!
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post #6 of 25
Quote:
Originally Posted by Badwrench View Post

Option 1) Take the 2 6770's for $50 and sell them on CL or here for profit -> take profit to buy another 6850 for crossfire.
Option 2) Buy the 2 6770's for $50 and sell them and your 6850 -> take $$ and buy 6950/70

Option 2) 6950/70 7850
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post #7 of 25
Thread Starter 
Well, I wasn't sure about crossfiring 6850's because my current PSU is a 700 watt.
post #8 of 25
I wouldn't bother with 6900s with the 7xxx series out now. Upgrade what you have or swap the card for something better.
post #9 of 25
What PSU are you using? not just the wattage
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post #10 of 25
Quote:
Originally Posted by Anadriall View Post

Well, I wasn't sure about crossfiring 6850's because my current PSU is a 700 watt.

You are more than fine for 6850 cf. 393w total system load with an overclocked i7 965.
http://www.guru3d.com/article/radeon-hd-6850-6870-crossfirex-review/4
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