Get CPU-Z here:
http://www.cpuid.com/downloads/cpu-z...s-setup-en.exe
And GPU-Z here:
http://www.techpowerup.com/downloads..._ROG_Skin.html
CPU-Z will show you ALL the info about your motherboard, processor, RAM inside your laptop.
GPU-Z will show you ALL the info about your graphics card inside your laptop.
But if I check your file I figure out you have an on-board graphics card... So it's shared with your RAM... Lucky for you, you have 4Gb of RAM, but I think thats the problem why lagging. --> not a stand-alone graphic card, but an on-board one wich uses the same RAM as your normal RAM (shared)
You might want to check here for updating your drivers for the graphics card (and errors why you can't use higher resolutions):
http://www.intel.com/support/graphics/intelgm45/
Hope this helps