Ubuntu 16.04 - Ubuntu doesn't detect my discrete GPU and so Vulkan and OpenGL

Question

(I'm using an unknown model of Nvidia Geforce)

Because of that i have to use Intel's integrated Graphics Processing Unit. When i enumerate physical devices in Vulkan i can only see one physical device, and it is Intel Haswell Mobile. Ubuntu is not detect my GPU.

When i pass this to terminal:

sudo lshw -C video

I got this result:

*-display               
       description: VGA compatible controller
       product: Haswell-ULT Integrated Graphics Controller
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 0b
       width: 64 bits
       clock: 33MHz
       capabilities: msi pm vga_controller bus_master cap_list rom
       configuration: driver=i915 latency=0
       resources: irq:43 memory:f7400000-f77fffff memory:d0000000-dfffffff ioport:f000(size=64)
  *-display UNCLAIMED
       description: 3D controller
       product: GF117M [GeForce 610M/710M/810M/820M / GT 620M/625M/630M/720M]
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:08:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: latency=0
       resources: memory:f6000000-f6ffffff memory:e0000000-efffffff memory:f0000000-f1ffffff ioport:d000(size=128) memory:f7000000-f707ffff

I was installed the nvidia-current package. What is the problem? And what is the model of my GPU?