x850xt and x1600xt - possible crossfire ?!

[Episode]

Hi everyone
I read , read ,read many posts but dont find anythig about that
Someone tryed this combination .......and how this work ?
Seams x850xt is powerfull but not have sm3 and hdr , and if is posible to add one of these x1600xt`s do i`ll have a sm3 and hdr ?!

 

[POGE]

No.

 

[EnglishLion]

You can't crossfire different chips. Same with sli on nvidia.

 

[Episode]

damn,thanks folks
I ask cuz i read long time ago that it can be possible , but at last they change this

EDIT
Also ask cuz i need to change my old PC
Wonder where to bet , SLI or Crossfire ?!
I need to choice : Asrock 775XFIRE-ESATA2 OR Gigabyte 8N-SLI

 

[cjoyce1980]

crossfire has been proven in many benchmarks to be the better dual GPU setup, going to quad SLI GPU setup wont be much faster than crossfire. Its something to do with a large bottle neck that nvidia are still trying to sort and looks like that might be sorted with the next nvidia mobo chip set when the next gen cards are released

 

[Episode]

....and is possible to cros 2 x X800GTO`s ?!!!!
I mean sapphire x800 GTO 128Mb cards ?!
They cost 105$ each at my place ....and hope that this will be more powerfull than 7600GT /210$/ , corect ?!!!!
No need sm3 and hdr , need performance