Overclocking R9 270x

[Hritish]

i have proccesser- i5 4440 @ 3.1ghz
Ram- 10gb
GPU- His R9 270X 2GB GDDR 5 ice x2 something
http://www.game-debate.com/hardware/index.php?gid=1946&graphics=Radeon%20R9%20270X%20HIS%20IceQ%20X2%20Turbo%20Edition
i want to overclock it atleast 10-20% pls help me i need good performance

 

[Roti-Kebab]

http://www.techpowerup.com/reviews/MSI/R9_270X_Gaming/27.html

 

[Hritish]

my gpu is of His not msi it have different settings

 

[Roti-Kebab]

my gpu is of His not msi it have different settings

The only thing different between different brands is almost always a different type of cooler. You can most certainly try the overclocks mentioned in the link i posted. All manufacturers overclocks are mentioned in the link, look closely.