Graphics card upgrade didn't do much

I upgraded from this graphics card:
Interface Type: AGP 8x
Graphics Processor: Nvidia GeForce MX 4000
Graphics Core Clock Speed: 275MHz
Installed Video Memory: 128MB
Memory Clock Speed: 2x200 [400MHz DDR]MHz
Memory Bus Width: 64-bit
To this:
Interface Type: AGP 8x
Graphics Processor: Nvidia GeForce 6600 GT
Graphics Core Clock Speed: 500MHz
Installed Video Memory: 128MB
Memory Clock Speed: 2x500 [1GHz DDR-3]
Memory Bus Width: 128
And Still at heathrow with 30% AI traffic and most settings at low-medium with PSS A340 i am only getting about 8-15 FPS
What can i do to make it better?? Or did i just waste my money??
Interface Type: AGP 8x
Graphics Processor: Nvidia GeForce MX 4000
Graphics Core Clock Speed: 275MHz
Installed Video Memory: 128MB
Memory Clock Speed: 2x200 [400MHz DDR]MHz
Memory Bus Width: 64-bit
To this:
Interface Type: AGP 8x
Graphics Processor: Nvidia GeForce 6600 GT
Graphics Core Clock Speed: 500MHz
Installed Video Memory: 128MB
Memory Clock Speed: 2x500 [1GHz DDR-3]
Memory Bus Width: 128
And Still at heathrow with 30% AI traffic and most settings at low-medium with PSS A340 i am only getting about 8-15 FPS

