Hola, tienes que ejecutar (Windows+R) el comando dxdiag, y le das a guardar. Te almacena toda la información en un fichero txt, en la sección de "Display Devices" te lo indica.

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Display Devices
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Card name: NVIDIA GeForce GTX 1080
Manufacturer: NVIDIA
Chip type: GeForce GTX 1080
DAC type: Integrated RAMDAC
Device Type: Full Device
Device Key: Enum\PCI\VEN_10DE&DEV_1B80&SUBSYS_119E10DE&REV_A1
Device Status: 0180200A [DN_DRIVER_LOADED|DN_STARTED|DN_DISABLEABLE|DN_NT_E NUMERATOR|DN_NT_DRIVER]
Device Problem Code: No Problem
Driver Problem Code: Unknown
Display Memory: 40868 MB
Dedicated Memory: 8144 MB
Shared Memory: 32724 MB
Current Mode: 3840 x 2160 (32 bit) (60Hz)
Monitor Name: Generic PnP Monitor
Monitor Model: U32D970
Monitor Id: SAM0BDE
Native Mode: 3840 x 2160(p) (59.997Hz)
Output Type: Displayport External
Driver Name: C:\WINDOWS\System32\DriverStore\FileRepository\nv_ dispi.inf_amd64_72b89f8d71abda5d\nvd3dumx.dll,C:\W INDOWS\System32\DriverStore\FileRepository\nv_disp i.inf_amd64_72b89f8d71abda5d\nvwgf2umx.dll,C:\WIND OWS\System32\DriverStore\FileRepository\nv_dispi.i nf_amd64_72b89f8d71abda5d\nvwgf2umx.dll,C:\WINDOWS \System32\DriverStore\FileRepository\nv_dispi.inf_ amd64_72b89f8d71abda5d\nvwgf2umx.dll
Driver File Version: 21.21.0013.7254 (English)
Driver Version: 21.21.13.7254
DDI Version: 12
Feature Levels: 12_1,12_0,11_1,11_0,10_1,10_0,9_3,9_2,9_1
Driver Model: WDDM 2.1 <---- AQUÍ
Graphics Preemption: Pixel


Saludos.