I just bought a GT 710 by ASUS that has 2GB of GDDR5 vram. From 954 mhz (stock core clock) I was able to overclock to 1250 mhz! For mem clock I got from 5000 mhz to 5600 mhz. After this overclock, I NEVER experienced anything abnormal apart from extra heat (that I took care of with more fans. I used msi Afterburner for the overclocking. Is this normal?
https://www.asus.com/Graphics-Cards/GT710-SL-2GD5/
https://www.asus.com/Graphics-Cards/GT710-SL-2GD5/