GeForce RTX 3080 Ti 20GB engineering sample shows up on Reddit, needs patched drivers to work
A Redditor “Tommyjones91” says he bought what looked like two standard GeForce RTX 3080 Ti cards, then discovered they were 20GB variants that Windows drivers would not detect out of the box. They report the cards will output video, but require a third-party patcher to install drivers properly.
In the thread, the owner says GPU-Z points to a 20GB model, and that the memory configuration appears to be real after opening the card. Later, they claim GeForce driver 581.94 worked once they used a patcher that adds missing device IDs, which is why stock drivers fail to recognize the hardware. That also means it is not a “plug and play” card, and it is a bad idea to resell it to someone who expects normal driver support.
The guy I got it from said it was a normal 3080ti he said he had engineering cards as well as he worked in IT and he got this as a gift from a company but didn’t say who. When I took them home and plugged them in they would display fine and looked like a normal 3080ti but the drivers wouldn’t install then went to gpuz and it said it was a 20gb model and then I opened it up to see if it really was.
— Tommyjones91
Source: Tommyjones91/Reddit
As some have mentioned, these engineering samples are not meant to be sold or handed out, and that some companies are required to destroy them after testing. The previous leak of these samples even showed this label:
Source: eBay
This is not the first time a GeForce RTX 3080 Ti 20GB sample has surfaced. Earlier in 2025, an engineering-sample Founders Edition card with 20GB showed up on eBay , with reporting noting the same core limitation: no official driver support without third-party modifications.
For collectors, it is a rare piece of Ampere history. For normal use, it is a hassle, and it can break at any time if a driver update changes what the patcher expects.
Source: Reddit
