I have not very latest PC but it is still good to play Games.

Here is my System Configuration

Intel dual core 2.2x2 - Processor
Intel DG41TY - Mother Board
Windows 7 - 64 bit
Normal Power Supply 400 watt
1 GB DDR RAM (2 slots)
160 GB SATA Western Digital
PCIe x 16

The previous 3D Card which was used:

Nvidia GE Force 7200 GS
256 MB
400 Mhz clock speed
64 bit

Please suggest a 3D Card which can be used based on my System Hardware Configuration.