gpu upgrade list for elitebook 8570w

[Zerial018]

hey, im wanting to upgrade my 8570w to the best i can (second hand parts prefered for cost reasons)

id really like a list of gpu's i can put in it and what are the best i can put in 

my specs:

prosessor - i7 3740qm 2.70ghz

ram - ddr3 2x4gb 2x2gb (upgrading to ddr3l 8gb x 4)

gpu - nvidia quadro k2000m

any other tips on what i can upgrade would be greatly appreciated (aiming for the best but i have to watch the budget also) 

thanks 

[banhien]

@Zerial018 

It is a workstation class machine therefore you can swap its GPU with a supported GPU and the list is not great

• NVIDIA Quadro K2000M (NVIDIA N14P-Q3 2GB DDR3) part # 690637-001
• NVIDIA Quadro K1000M (NVIDIA N14P-Q1 2GB DDR3) part # 690638-001
• AMD FirePro M4000 (Chelsea XT GL 1GB GDDR5) part # 690639-001

Regards.

[Zerial018]

so there is nothing else compatable even without other upgrades?, im happy to upgrade what ever needs to be upgraded inorder to have a better gpu as i want to be able to run games and so on,  and also what is the best gpu out of the 3 you listed