Assassin's creed on ivy bridge pentium G2010 and hd graphics 2500

assassin's creed gameplay my spec cpu - pentium G2010 2.8ghz Gpu- hd graphics 2500 memory- 4gb DDR3 HDD - 160gb 18-23FPS with fraps 22-28FPS without fraps resolution:1280x720 Game setting Shadows:2/3 Graphics quality:3/3 Level of detail:3/3 Vsync:off and pentiumg2010 is much faster than g645