Tremulous packshot image
Tremulous is a free, open source game that blends a team based FPS with elements of an RTS. Players can choose from 2 unique races, aliens and humans. Players on both teams are able to build working structures in-game like an RTS. These structures provide many functions, the most important being spawning. The designated builders must ensure there are spawn structures or other players will not be able to rejoin the game after death. Other structures provide automated base defense (to some degree), healing functions and much more...
Tremulous GPU Performance Comparison Graph

Tremulous GPU Analysis
Comparing Tremulous PC system requirements to all GPUs shows that Tremulous is going to need a graphics card that is capable of DX 9 or OpenGL 3.1.

To get the best visual graphical experience on Tremulous, aim to have a GPU that has at least 512 MB GPU RAM.

Most bottom end graphics cards currently available today, will probably allow you to play Tremulous

We are advised that 11 year old graphics cards should be able to run Tremulous , but there could be a few exceptions to this rule.

Note that most games do not officially support laptop graphics cards, but nowadays many laptop graphics solutions are capable of running modern games. Whether desktop graphics cards or laptop, try searching for your graphics card to compare against the Tremulous graphics card requirements chart below.