Just last week, it was discovered that Nvidia's shiny new RTX 50 series cards had axed support entirely for 32-bit software, which hit old-school physics engine software PhysX.
Now, in order to run some games better, gamers are taking to installing secondary graphics cards to get a healthy fps boost (and in one case, just to run a game with PhysX).
One user posted to Reddit (via Wccftech) that they had purchased a dedicated RTX 3050 to run a handful of games alongside their RTX 5090 and the results feel like they may actually justify the second card if you have one already hanging around.
RTX 5090 and CPU-enabled PhysX average fps RTX 5090 and dedicated PhysX RTX 3050 average fps Mafia II classic 28.8 fps 157.1 fps Batman Arkham Asylum 61 fps 390 fps Borderlands 2 N/A (can't enable PhysX) 122 fps Assassin's Creed IV: Black Flag 62 fps 62 fps Mirror's Edge 12 fps 171 fps It's worth noting that, if you want to run these games and get a better average fps on an RTX 5090, you can opt to turn off PhysX entirely, but PhysX is used for cloth and particle effects so PhysX does make a lot of compatible games look better and more lively.
We have tested Borderlands 2 (a game some believed wouldn't function) on our own RTX 5090 FE rig and it will boot and play fine.