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rank #145
Watch Dogs - med. 1366x768 Medium Overall Quality, Medium Textures expect frame rates in the low 20's per second. Pushed to low preset overall should get about 30.
Battlefield 4 - Medium preset 35 fps. High Preset 25 fps
Counter-Strike: GO - at 1366x768, you can try maxing all the settings and should play smoothly.
There are reported numbers, so for ultra on a 1080p by HDMI, should be playing about 50 frames per second. Your screen on the laptop max is 60 fps.
Battlefield-3 high preset 1366x768 16xAF reports a playable 25.5 frames per second. That is typically an acceptable frame rate for laptop gaming at your laptop level of game laptop.
In a desktop-tower with its stronger graphics and signal fed to a 1080P or higher resolution monitor, people expect 30fps since this is a gaming PC. Laptops, requiring the ability to run on batteries, and the much smaller size with heat to get rid of, just doesn't get to the tower gaming levels, and try to adjust to 20's fps as smooth enough, or cut to even lower game settings.
Your i5-4200M is a strong CPU in line with i7-4xxxU dual core cpus, but still in ultra bottlenecks strong graphics cards. However, the HD 8750M is not strong enough in ultra for games requiring that much CPU power, so I do not expect any CPU bottlenecking in play.