how check my motherbord support GDDR5 ?

Solution
You don't need to, you'll only have to check which PCI-E the gpu is using, if it's PCI-E 3.0 or 2.0 it is compatible with your PCI-E 2.0 x16 motherboard lane. The GDDR5 is only the type of ram the gpu uses, it doesn't have any influence on the motherboard. And you should go for a gpu with GDDR5 instead of GDDR3 because GDDR3 is slower. :)

NiCoM

Honorable
You don't need to, you'll only have to check which PCI-E the gpu is using, if it's PCI-E 3.0 or 2.0 it is compatible with your PCI-E 2.0 x16 motherboard lane. The GDDR5 is only the type of ram the gpu uses, it doesn't have any influence on the motherboard. And you should go for a gpu with GDDR5 instead of GDDR3 because GDDR3 is slower. :)
 
Solution