When should I start to add power to an XFX R9 270X Overclock?

brennan97

Honorable
Nov 24, 2013
9
0
10,510
I've been overclocking my r9 270x, and I'm wondering when I should start to add extra power to my GPU? I'm currently at:

1140 MHZ GPU Clock (stock 1050)
1490 MHX Memory Clock (stock 1400)