New video card to Z420 (Base Model ) work station

Hi,

• I want to buy a new video card to my Z420 Base workstation PC.
• Here is my PC specification:
  • Processor: Intel(R) Xeon(R) CPU E5-1620 0 @ 3.60GHz
  • Number of Cores :4
  • Memory: RAM 8.0 GB
  • Video Card NVIDIA Quadro 2000
  • Power supply: 600 W 

I wonder if these video cards would be suitable to my PC:

1. Gigabyte GTX 1060 G1 
2. Gigabyte GTX 1060 WINDFORCE OC
3. Gigabyte GTX 1080 G1 
4. Gigabyte GTX 1080 WINDFORCE OC

Thanks in advance,

Laor.