Upgrade from Corsair HX 520, do I need one?

[Beerlake]

So basically, I bought a new gpu (GTX760) to replace my old one (R6850), and while it's still on its way from the retailer to me, I started to worry a little about the PSU I'm using.

It's almost 5 years old Corsair HX 520, and I'm worried that it's not going to be enough anymore. My system isn't the most powerful beast around so it's been fine for now.
But now with this new GPU, and possibly some CPU overclocking, should I get a more powerful PSU?

I punched some numbers to the Thermaltake PSU calculator, and the wattage is getting up there. They don't list the 760 in the GPU selection yet, so I had to fudge it up a little.
If I just put my hardware as it is in there, it stays well under, but with 5 year old psu, what kind of capacitor aging should I use in the calculator? I read some very conflicting things about the aging, and I'm pretty much out of my depth here.

Any help would be appreciated.

CPU i5-750 stock
RAM 2x4GB
Mobo Asus P7P55D Pro
PSU Corsair HX520
3 hard disks, 1 optical drive

 

[lehtv]

It's fine, you're only using about half the PSU's maximum capacity with that GPU

The Thermaltake wattage calculator calculates recommended PSU wattage, not actual power consumption

 

[Kenmitch]

Power wise you should be fine it looks like.

The actual degrading of the capacitors is a unknown I'd think.

If replacing the power supply would allow you a less stressful computing experience then it might be the best thing to do.

 

[Beerlake]

Alrighty, thanks guys.
I'm going to replace the PSU eventually either way since it's the oldest component I have, but it's good to know that it's not an immediate concern.

 

[nafees127]

actually corsair PSU is already one powerful and highly reliable in terms of usage. and also the gpu you will get need low power cox latest gen