gan mau tanya nih ane pake "HP pavilion g4 notebook PC" spec ane: Intel core i7 2.10ghz Ati Radeon HD 7670m 2gb ddr 3 4gb ram ddr 3 Windows 7 Home premium SP 1 64 bit kok ane maen Call of duty black ops 2 masih ngelag ya gan :bingungs padahal d PCane yg dulu lancar lancar aja,specnya ma...