1Life 500W PSU is capable of GTX 750TI

[lincus]

Hi, I am new to all this hardware thing and I want to understand how the amps of PSU and GPU relate with one another.

My actual build is:
-1Life ps:jet 500W (+3.3V 28A, +5V 30A comb. 242W), (+12V1 18A, +12V2 18A, comb. 245W), (-12 0.3A 3.6W), (+5VSB 2A 10W);
-Intel i3-2100 3.1GHz 65W;
-Nvidia GeForce GT 520 1GB Silent 35W
(hard disk and ram I don't think to be very important, correct me if needed)

Is my PSU good enough for the GTX 750 TI? And why it requires 20A or 29A if it uses 60W?


Thanks in advance

 

[Dark Lord of Tech]

It's not a very good power supply , but has the specs to run a 750ti.

 

[lincus]

It's not a very good power supply , but has the specs to run a 750ti.

Thanks. Could you give me more details on how the power management on GPU work for require so much Amp?