Laptop Motherboard Replacement

Feb 5, 2019

I have an Asus K53SC that I need to replace the motherboard on. I disassembled it and discovered that the motherboard says K53SV. I'm not sure if it is original or not. it My question is, must I buy the exact one I had, or can I buy one that is for a more expensive model in the same series that has a better graphics card? ie must I buy THIS when THIS is only sightly more expensive? The second MB is what the K53SD has which is exactly the same in most ways, and the two motherboards seem to look exactly the same in component placement, size, ports, etc. As an added note, no, the processor/memory are not soldered on.