How much can overclock the Asus Gt-630 d3...?

MM115

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Jun 15, 2014
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Hi, I am new to the overclocking area. I want to overclock my asus gt-630 d3 rev.2 verson. The gpu-z shows it have 902mhz clock speed and 900mhz memory speed. Shaders are 384. Normal temp 34-37C, under game it will go up to 65C.
Cpu: i3-4150 win 8.1-64
Mobo: Gigabyte h81
Ram: Gskill 1600
Psu: Corsair vs-450 and additional 2 fans.

# Which software is best for me?
# What is the limit of overclocking based on my hardware limitation?
# Should I increase the voltage? (0.9 V current)
# In each step of overclocking, how much mhz can I increase?

I want a detailed answer for this, because of my lack of experience :p
Please help, thank you.
 
Well gpu tweak from asus or msi afterburner are the best for this card, as for max overclock every card is different so you must experience yourself, try to increase frequency step by step and check for stability (Video card stability test here is the link https://www.google.ro/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwj7trvgk-_JAhWFVRoKHcJTC38QFggdMAA&url=http%3A%2F%2Fwww.softpedia.com%2Fget%2FSystem%2FBenchmarks%2FVideo-Card-Stability-Test.shtml&usg=AFQjCNFswPj6x8ns6gSXutBeChu0bZP4VA&sig2=gbZsMkAUoLxMqI3f0dI8wQ) , if it becomes unstable try to increse just a bit the voltage in stepts of 0.01. Good luck.