Game software is a highly optimized piece of software. GPU & CPU make, model, or things like RAM amount or I/O bandwidth can affect a lot of things.
Half-Life 2 was randomly crashing on AMD systems on launch. Valve was sometimes churning 4 updates/day. Then they requested some actual gamers with AMD systems to come to HQ for testing. After that point all bugs are ironed out in a week or so.
> But blaming I/O bandwidth for bugs that are clearly related to game logic is naive.
Lazy loading assets with a slow I/O backbone might cause some glitches though. Unless you have a finicky storage controller, you can't create too much problem with a slow storage.