S.T.A.L.K.E.R. Call of Pripyat on Nvidia Geforce FX5500 128 mb

My pc: Intel Pentium 4 2.8 Ghz Nvidia geforce fx 5500 128mb vram 512 mb ddr400 RAM minimum system requirements CPU: Intel Pentium 4 2.0 GHz / AMD Athlon XP 2200+ CPU Speed: 2.0 GHz RAM: 768 MB Video Card: 128 MB DirectX® 8.0 compatible card / NVIDIA® GeForce™ 5700 / ATI Radeon™ 9600 Graphics:low (not minimum) Resolution:800x600@60 FPS with fraps 15-20 average 17 FPS without fraps 20-35 average 25 FPS when i overlicked my videocard 25-49 average 32 In singleplayer i have freezing because i have 512mb ram but for game need 768mb minimum Verdict : Playable Thief series Hitman series Riddick Escape from Butcher Bay & Assault on Dark Athena Metal Gear Solid 2 Substance Splinter Cell series Batman Arkham Asylum Deus Ex series Assassins Creed series Call of Duty series battlefield series gta series CS go series titanfall need for speed ubisoft ea games half life 3 nvidia geforce radeon