@mikrolactaki3 You don't need to launch the game through the AMD software, and Origin would need to be open regardless, since patch 1.69 means you need to play through Origin anyway. Within the Radeon software, all you'd need to do, if you have that option, is create a profile for Sims 3 (TS3.exe) and specify that you want the game to use the high-performance AMD card. The Radeon software should make that happen.
If this doesn't work, there are other approaches you can try. It's hard for me to describe though because I don't have access to or even screenshots of a dual-card AMD setup. So if you're not sure what you're looking at, feel free to post screenshots of what you see within the Radeon software.
When you've set your system to use the AMD card for Sims 3, launch the game once, then check deviceconfig again, and you should see your AMD card where your Intel chip is listed now.
@mikrolactaki3 This thread isn't close to dead; I personally only start wishing someone would create a new one after about a year.
Anyway, options.ini doesn't store your graphics card info. It does record the driver version, but deleting it and letting the game create a new one has no effect on what card the game uses. Deleting it is a good idea though just to let the graphics settings return to defaults.
Mods are unaffected by deleting options.ini because their settings for a particular save are stored within the save files themselves. Saves could be affected if you load a current save with different options than you've been using, but that depends on the setting. To avoid that, just start a new save for testing, reset the options to what you want within that save, and if everything is fine, go back to your existing saves afterwards.
