I even have a USB cooling fan for it and it doesn't help much. Almost any game I play does this (Civ V, League of Legends, EVEN Warcraft III). My specs are:
AMD A10-5757M APU with Radeon(tm) HD Graphics
Video Card AMD Radeon HD 8650G + 8600/8700M Dual Graphics
Video Card #2 AMD Radeon HD 8600/8700M
RAM 8.0 GB
Operating System Microsoft Windows 8.1 (build 9600), 64-bit
AMD A10-5757M APU with Radeon(tm) HD Graphics
Video Card AMD Radeon HD 8650G + 8600/8700M Dual Graphics
Video Card #2 AMD Radeon HD 8600/8700M
RAM 8.0 GB
Operating System Microsoft Windows 8.1 (build 9600), 64-bit