$ lspci -k | grep -EA2 'VGA|3D'
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
Subsystem: Dell 3rd Gen Core processor Graphics Controller
Kernel driver in use: i915
--
01:00.0 VGA compatible controller: NVIDIA Corporation GK107M [GeForce GT 650M] (rev a1)
Subsystem: Dell GK107M [GeForce GT 650M]
Kernel modules: nvidiafb, nouveau, nvidia_304