Thank You for your reply i am afraid that i'm going to buy ps4 instead the graphics card !
Thats probably a good choice. If you were to upgrade a new GPU, you would probably need to get a new CPU as it is old and might cause a bottleneck. Then a new power supply, motherboard, so on and so on. PS4 is cheaper.
Don't forget to pick a best solution. It helps out the forum users.