What is the best card i can use for my pc

Motherboard:
Manufacturer ASUSTeK Computer INC.
Model CM5570
Version Rev X.0x
Chipset Vendor Intel
Chipset Model P45/P43/G45/G43
Chipset Revision A3
Southbridge Vendor Intel
Southbridge Model 82801JR (ICH10R)

CPU:
Intel Core 2 Quad Q8200
Cores 4
Threads 4
Name Intel Core 2 Quad Q8200
Code Name Yorkfield
Package Socket 775 LGA
Technology 45nm
Specification Intel(R) Core(TM)2 Quad CPU Q8200 @ 2.33GHz
Family 6
Extended Family 6
Model 7
Extended Model 17
Stepping A
Revision R0
Instructions MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, Intel 64
Virtualization Unsupported
Hyperthreading Not supported
Bus Speed 333.0 MHz
Rated Bus Speed 1332.0 MHz
Stock Core Speed 2333 MHz
Stock Bus Speed 333 MHz
Average Temperature 47 °C

power supply max is 300w


Wanting to play ffxiv