AMD Phenom II X4 955 - will this support Windows 10 64 Bit?

Hi

I have a AMD Phenom II X4 955 - will this support Windows 10 64 Bit?

I I'd like to increase the RAM I'm using from 4 to 16gb and believe I need to go to 64 bit to do this

My motherboard is a ASUS Tek M4A7TD/USB3

Any advice would be greatly appreciated

Thanks

Deesale