Adding on another ATI 5850

[thebser]

Hi guys,

So I currently have a Sapphire 5850 and I would like to crossfire another one, mainly for Battlefield 3.

I saw on Amazon that Sapphire has an Extreme edition 5850 for $150 which is a good price. Most of the other places don't even sell 5850s or sell it at a ridiculous price. So I have a few questions about this:

1. Can a normal Sapphire 5850 be crossfired with a Sapphire 5850 Extreme edition?
My: http://www.newegg.com/Product/Product.aspx?Item=N82E16814102857
New: http://www.amazon.com/Sapphire-Radeon-PCI-Express-Graphics-100282XTREME/dp/tech-data/B004W75ATI/ref=de_a_smtd

2. Will have 600W PSU handle this? I have no plans for overclocking and here are the specs.
PSU: Thermaltake TR2 W0388RU 600W ATX 12V v2.2
CPU: Intel i7-860 2.8GHz
RAM: 4x2GB DDR3
Harddrive: 640GB 7200RPM
MOBO: GIGABYTE GA-P55A-UD4P

3. Will I have enough PCI-Express slots? It looks like I have only 2x 2.0 slots and 3x 1.0 and I know the first 5850 takes up two slots. Does this mean the second one will be on the 1.0 slots and run slower?

4. Will I see a good increase in performance with this crossfire configuration?

Thanks in advance for your help!

 

[rolli59]

1 Yes!
2 Technically yes but the TR2 has gotten some bad reviews. Here is the 750watt version http://www.hardwaresecrets.com/article/Thermaltake-TR2-RX-750-W-Power-Supply-Review/902/9
3 You are fine with the slots
4 Yes when CF is supported.