Graphics Cards Original Zotac Geforce Gtx 550ti-1gb Gddr5 192bit Video Card For Nvidia Gtx 500 Map Gtx 550 Ti 1gd5 Dvi Vga Used - Graphics Cards - AliExpress
Nvidia has quietly switched on DirectX 12 support for GTX 400 and 500 series | KitGuru
Nvidia-GeForce-500-Serie – Wikipedia
NVIDIA enables DX12 on GTX 400 and 500 series cards
GeForce GTX 580 DX 12 Benchmarks - NVIDIA Enables DX12 on GeForce 400 and GeForce 500 Series Graphics Cards
Zotac Gtx 590 3gb Video Card Geforce Gddr5 384bit Graphics Cards For Nvidia Gtx 500 Series Map Gtx590 3gd5 Dvi Vga Used - Demo Board Accessories - AliExpress
GeForce 10 Series Graphics Cards
NVIDIA GeForce GTX 550 Ti Specs | TechPowerUp GPU Database