I've tried doing everything I could in the Catalyst Control Center. I put LaunchGTAIV.exe and GTAIV.exe on High Performance mode and the game still uses the Intel card.
I'm running the Steam version of the game.
Average FPS: 15.81
Duration: 55.65 sec
CPU Usage: 44%
System memory usage: 64%
Video memory usage: 35%
Video Mode: 1920 x 1080 (60 Hz)
Texture Quality: High
Shadow Quality: High
Reflection Resolution: High
Water Quality: Very High
Texture Filter Quality: Anisotropic x4
Night Shadows: Off
View Distance: 25
Detail Distance: 31
Microsoft Windows 8
Video Adapter: Intel® HD Graphics 4000
Video Driver version: 184.108.40.2060
Audio Adapter: Speakers (Conexant SmartAudio HD)
Intel® Core i5-3230M CPU @ 2.60GHz
File ID: Benchmark.cli
Edit: The graphics card I want it to use is called AMD Radeon HD 7730M
Edited by garliccrouton, 17 August 2013 - 06:23 PM.