Is there any point in overclocking my GT 610? Can I expect any reasonable gains from it? My current stable OC is 900 MHz core, 1800 MHz shader, 580 MHz memory (DDR3). Stock speeds are 810 MHz core, 1620 MHz shader, 533 MHz memory. Maximum temperature is 90C. I know that's going to kill my card eventually, which is why I'm asking if it's worth overclocking.