Power consumption of PSU

[dostbhaskar]

Hi,
Planning for a future-proof PC.My current requirement is about 200-250w. If I go for a 600w PSU now (GPU addition in future),will it consume more power?i.e will it going to consume 600w even in 40% loading?

thanks

 

[dostbhaskar]

Thanks hafijur.I myself got a CX500V2.