Difference betwen this cards?

Axe22

Honorable
Apr 24, 2013
81
0
10,630
Radeon HD 7730 1GB GDDR5
Radeon 7730 Powercolor 1GB/DDR3
I know it's same card,but how mach is difference betwen them.
First is 4500MHz 800MHz
Second 1600MHz 800MHz.
Will this speed affect too much on gaming if I buy ddr3 version.I know she's quite weak,but I play on 1280/1024 on medium settings so it's enough for me.