How do I know how high voltage PSU I need?

Anthoniuss

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Oct 18, 2014
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Hello.

Anton here, so I am wondering if my PSU is enough for crossfire.

I am considering in getting AMD Radeon HD6670d crossfired alongside my current AMD A8 3870k (oc'd at 3.3GHz). I just want to know if my PSU is enough to handle that withouth needing for an upgrade.

Specs:
AMD A8 3870k @ 3.3GHz
Integrated AMD Radeon HD6550d 1GB Graphics accelerator
Kingston HyperX Blu 1333Mhz 2x2GB
Asus F1A75v-PRO motherboard
Corsair CX500 Bronze 500W

Also, I was thinking of upgrading my RAM to 8GB soon, Was considering the Kingston HyperX Fury 2x4GB 1600MHz, is it compatible for my motherboard? And do I need to upgrade my PSU for that?