i find that you are better off buying a desktop for photo editing, if you need a laptop to do serious editing and rendering, you need to flash the cash. there are no cheap laptops with high specs. people think buying an i5 or i7 will give them enough power, but there are so many other factors that determine the speed and power. i3 i5 i7 are just buzzwords. and get SSD, so much faster as HDD
as unanymous says, check the specs of the cpu, dont let the buzzwords blind you