Help With Upgrade

Hi, I recently built a pc. It has decent performance but I feel like I need more power. 

My system currently is running:

Amd Athlon 760k

8gb crucial memory 1600 mhz

wd blue hdd

windows 8.1

sapphire Radeon r7 260x


I went ahead and purchased a sapphire r9 270 tri-x toxic, for an upgrade. Do you guys think I will receive a significant performance increase?

There will be a pretty decent performance increase.  I'd estimate 10-30fps in most games.

Thanks for your reply!