PSU question. Do I have enough power?

[CStretch]

My question is pretty straight forward, do I have ample power?

Here is my build, (This is my first custom build)

PSU: Antec VP-450
CPU: i5 4690
GPU: GTX 750Ti
Mobo: ASUS Maximus VII Hero
RAM: Kingston Hyper X Blu 8GB (2x 4GB Modules)
Case: Define R4 Black Window


I was wondering if the Antec VP-450 is enough. I feel that it is enough to power what I have now, but I guess my real question is would it be beneficial enough to drop some money on a, say, 600w or 750w PSU? Or is that not necessary until I upgrade my GPU.

 

[Archaic59]

Plenty of power. Good to go until next upgrade. Cheers!

 

[CStretch]

Thank you very much!

 

[IntelTurtleFan]

Antec makes good quality power supplies. I would suggest a EVGA GS like a 550w. You will be able to handle everything from a R9 280 to GTX 980 with a 550w.

 

[turbopiki]

Did you buy your PSU already if not and you plan to upgrade GPU later i would buy PSU with more watts

 

[CStretch]

I already bought this one. I'll just wait to upgrade when I up my GPU