450 watt for hd 7770 1GB enough?

tinokoloski

Honorable
Dec 13, 2013
37
0
10,540
Hi,
I am thinking of getting an hd7770 1GB but i am not sure if my 450 watt powersupply is enough. So should i get a new one?

And also i am not getting the 2GB version because my power supply does not have 6-pin cable in my power supply. But is there a way to get the cable that the hd 7770 2GB needs without buying a new power supply?

My rig now:
Cpu
Fx8320
Gpu
Saphire hd 6670
Mobo
Asus m5a97 r2.0
Psu
450 wat
Ram
16GB 1600 mhz

Thanks