Can i run HIS Radeon 7870 on 420 watt Thermal master PSU?

Zain313

Reputable
Jul 11, 2014
3
0
4,510
Can i run HIS Radeon 7870 on 420 watt Thermal master PSU? moreover my processor is core i7 870 2.9Ghz and RAM is 6 GB?
The ratings are as shown below:
+3.3V - 30A
+5V - 30A
+12V - 16A
-12V - 0.3A
+5Vsb - 2A