Gaming benchmarks from Notebookcheck Radeon HD 7520g vs. Intel HD 4000 for low settings in games.
http://www.notebookcheck.net/AMD-Radeon-HD-7520G.71728.0.html
Game = Performance Difference
FIFA 2013 = Intel HD 4000 +36%
F1 2012 = Intel HD 4000 +91%
Guild Wars 2 = Intel HD 4000 +112%
Counter Strike: GO = Intel HD 4000 +53%
DarkSiders 2 = Intel HD 4000 -20% (The Radeon HD 7520g provides better performance)
Sleeping Dogs = Intel HD 4000 -20% (The Radeon HD 7520g provides better performance)
Ghost Recon: Future Soldier = Intel HD 4000 -16% (The Radeon HD 7520g provides better performance)
Max Payne 3 = Intel HD 4000 +65%
Dirt Showdown = Intel HD 4000 +79%
Diablo 3 = Intel HD 4000 -11% (The Radeon HD 7520g provides better performance)
Risen 2: Dark Waters = Intel HD 4000 +42%
Mass Effect 3 = Intel HD 4000 +0% (Both iGPUs provides the same performance)
Alan Wake = Intel HD 4000 -41% (The Radeon HD 7520g provides better performance)
Anno 2070 = Intel HD 4000 -16% (The Radeon HD 7520g provides better performance)
Skyrim = Intel HD 4000 +6%
COD: Modern Warfare 3 = Intel HD 4000 -7% (The Radeon HD 7520g provides better performance)
Battlefield 3 = Intel HD 4000 -5% (The Radeon HD 7520g provides better performance)
Batman Arkham City = Intel HD 4000 +45%
FIFA 12 = Intel HD 4000 +31%
F1 2011 - - - Intel HD 4000 is not listed, but the slower Intel HD 3000 is + 46%
Deus Ex: Human Revolution = Intel HD 4000 -13% (The Radeon HD 7520g provides better performance)
Crysis 2 = Intel HD 4000 +15%
Call Of Duty: Black Ops = Intel HD 4000 +46%
StarCraft 2 = Intel HD 4000 +11%
Metro 2033 = Intel HD 4000 +10%