MSI Global - The Leading Brand in High-end Gaming & Professional Creation
They manage to use AMD FreeSync with NVIDIA graphics (more or less) - HardwarEsfera
Dell 144Hz Gaming 27 Inch Curved Monitor with FHD (1920 x 1080) Display, Nvidia G-Sync and AMD FreeSync HDMI, DisplayPort, VESA Certified, Gray - S2721HGF