[EDIT: Is your game on disc or a download from an online retailer ? ]
"I have no idea about graphics cards and what is good or not"
Check out the benchmarks for the games in the review below. They will help you to determine if your Nvidia 960M is
suitable for games you may want to play in future.
(If you click on the game titles you will be taken to a detailed benchmark page)
https://www.notebookcheck.net/Nvidia-GeForce-GTX-960M-Review.137893.0.html
- System requirement sites normally only show the minimum and recommended graphics card for the games, but if you
check the system requirements sites for the games benchmarked in the review above it will help you to compare
your 960M with desktop model graphics cards that are shown on the system requirement sites for other games you may want to
play future that have not been benchmarked with your 960M.
- Note that to get the best from a game it is desirable to be in the 'recommended' range.
It may seem a bit overwhelming at first, but if you do a search for reviews of the different desktop gpu's shown in the requirements
you will get a good idea of what to expect from your 960M.
btw - the GTX7800 is an antique in gpu terms. If you are getting a message that the hardware is incompatible because your machine
is using the Intel HD 530 it's probably due to Integrated graphics not having any VRAM .
I reckon the HD530 has as much processing power as the GTX7800 did, but some games are programmed to knock back any gpu
without VRAM. Even though the 256MB requirement of Warhammer is piddling by current standards.
.