I'd say minimum for running ok vr is gtx 960. But alyx requires gtx 1060, don't skimp out on video card, alyx just from screen shots, looks like it needs a good video card. Even if it did run (it might, it does support Dx12, GL4.6 and Vulkan 1.1.126, IDK what source2 requires) it will NOT be a good experience.
May be interested to know that the Half-Life: Alyx non VR mod (driver) is now available to download for free from the projects GutHub page allowing you to play Half-Life: Alyx without VR. Watch
Fans Have Made Half-Life Alyx Playable Without VR – But There Are Problems. April 10, 2023 by Ryan Parreno. There is a reason VR games usually do not get ported outside VR. We have some good
The VR controls of Half-Life Alyx are truly revolutionary, players who want to experience the story of Half-Life: Alyx without having to buy said VR headset can opt for this mod instead, 4. Wish you could play Half-Life: Alyx, but don't have any sort of VR headset? An ambitious modder has ensured that you can do just that, thanks to a new release that lets you run the game without The Valve Index is the best way to play Half-Life Alyx, as the game has been developed to take full advantage of the Index's hardware. The 130-degree display has a combined resolution of 2880x1600 dsSBwKu.