System Requirments
Minimum
Maximum
Intel Core i7-2670QM 2.2GHz(turbo boost up to 3.1GHz)
AMD Radeon HD 7670M 2GB VRAM
6GB RAM
64-bit operating system

IF You guys having a question that your computer can play GTA IV or not you MUST tell me full information of the computer

You must tell me:
-Name of your computer
-Core Ex: i5,i7
-Operating system Ex: 64bit, 32bit
-GHz
-Type of graphic cards and how much memory Ex: AMD Radeon HD with 2GB
-Memory RAM

For Minimum System Requirements:

Windows Vista - Service Pack 1 / XP - Service Pack 3
1.8GHz Intel Core2Duo or 2.4GHz AMD Athlon X2 64
1 GB of RAM (Windows XP) or 1.5 GB of RAM (Windows Vista)
16 GB free hard drive space
256MB NVIDIA 7900 / 256MB ATI X1900

For Recommended System Requirements (Maximum setting):

Windows Vista - Service Pack 1 / XP - Service Pack 3
2.4Ghz Intel Core 2 Quad or 2.1GHz AMD Phenom X3
2.5 GB of RAM (Windows XP) or 2.5 GB of RAM (Windows Vista)
18 GB Free Hard Drive Space
512MB NVIDIA 8600 / 512MB ATI 3870
http://malaysiabay.org/torrent/4549749/GTA_IV_PC_Version