4870x2 cfx need answer and advise

[Aemrod]

Hello i have HIS HD4870x2 graphic card and i want another one for cfx but it'll be my first attempt so im trying to find out if i were to buy a different brand like asus or saphire does it matter? Do they change anything on card except cooling and tweak?(prolly no but just want to know in case)

Thanks,

 

[simon12]

Make sure you get one with the same amount and speed memory and it will be fine, except you will need good airflow for 2 of them as they run hot.

 

[Aemrod]

i have
http://www.hisdigital.com/un/product2-24.shtml
and can't figure out. mine is 512bit 2048mb 750x2mhz i checked saphire it says 256bit so im a little bit confused¿

 

[simon12]

just make sure you get a 2Gb GDDR5 one