How much can I overclock my CPU?

Sep 6, 2017
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My Computer's Specs

AMD A10 6750k Quad Core 4.0 Ghz

Cooler Master Hyper 212 Evo

Corsair Vengeance 8 Gb Dual Channel 2400 Mhz (but for some reason when i run speccy it say i have them at 665 Mhz)

AMD Radeon HD 7870

Gigabyte F2A88XM-D3H Mobo

1 TB Hard Drive

I have my cooler facing vertically pushing air out form the back and the temps seem ok but i just wanted to know if i could and how much could i overclock my A10

THANKS