How to check which graphics card it is on my pc and what the memory is?

My parents bought me a lenovo G510 and it says they're are AMD RADEON graphics how do i check which type and how do i find RAM of my laptop

Are you sure it's G510?
I'm looking at them online and they are all intel based.
And it looks like all Lenovo G510s have integrated graphics chip (HD 4600), meaning it does not have dedicated graphics card in it.

Disregard if I'm mistaken.

You could try Everest its a software that displays all of your hardware info with one of the biggest hardware databases. If you search Everest there website will show up.

The Lenovo IdeaPad G510 uses the Radeon HD 8750M for it's graphics device.
http://www.notebookcheck.net/...773.0.html

It has two memory slots and can use up to 16GB (2 x 8GB) of PC3-12800 1600Mhz DDR3 SDRAM So DIMM 204-pin.
http://www.datamemorysystems.com/dms-memory/lenovo/g510.htm