CF And SLI

[XSR]

Can I to make a CrossfireX with AMD Radeon HD 6770 and HD 5770, or make sli of gts 450 and GTX 550 TI? Assuming I have appropriate system...

Thanks.

 

[nukemaster]

6770 and 5770, yes they are the same card(re-badge), but not the 540 + 550

http://cdn.overclock.net/7/75/757b3074_AMD_CrossfireX_Chart_1618W.jpeg

 

[AbdullahG]

You can CrossFire the HD 6770 with the HD 5770 based on AMD's CrossFire Chart:
http://sites.amd.com/PublishingImages/Public/Graphic_Illustrations/WebBannerJPEG/AMD_CrossfireX_Chart_1618W.jpg
They're both essentially the same card, although you have to set the HD 6770 as the first and primary card.

I believe you cannot have a GTX 550 Ti and GTS 450 to work in SLI together.

 

[XSR]

At what level of performance will be CF of 6770 and HD5770?

 

[AbdullahG]

Probably around HD 6870 performance. Nothing really amazing. I personally wouldn't spend more than $100 on a pair of crossfire HD 5770/HD 6770.