It sould keep in mind that higher bandwidth brings a good chance to get high IR without drops (GPU), and the suffix that are next to most CPU model numbers (Intel, AMD), and also which archiecture is used on them (Intel: Ivy Bridge, Sandy Bridge, Haswell; AMD: Jaguar, Bobcat... just to mention examples).
Rig 1: Windows 10 Home | AMD A6-1450 @ 600/1000/1400 MHz | AMD Radeon HD Graphics 8250 | 4GB RAM | HP Pavilion TouchSmart 11.
Rig 2: Windows 10 Pro | Intel Core i7-2640M @ 780/2800/3500 MHz | Intel HD 3000 Mobile | 8GB RAM | Dell Latitude 6320.