Gamer card help please??

just want a better card to play a few games? is there anything i can do ?

System Manufacturer: Acer
System Model: Aspire 5738
BIOS: Ver 1.00PARTTBL
Processor: Pentium(R) Dual-Core CPU T4400 @ 2.20GHz (2 CPUs), ~2.2GHz
Memory: 2048MB RAM
DirectX Version: DirectX 11
Card name: Mobile Intel(R) 4 Series Express Chipset Family
Manufacturer: Intel Corporation
Chip type: Mobile Intel(R) 4 Series Express Chipset Family
DAC type: Internal
Display Memory: 796 MB
Dedicated Memory: 64 MB
Shared Memory: 732 MB
Current Mode: 1366 x 768 (32 bit) (60Hz)