New PSU needed?

[Nebrock2009]

Deciding to get a 4GB GPU card instead of a 2GB on. So do I now need a more powerful psu?
I have a 550W seasonic with 80+ gold rating.
Components are:
CPU: i7-3770k
GPU: Gigabyte GTX680 4GB
RAM: Corsair DDR3 Vengeance Performance 16GB(2x8GB)
HDD: WD 1TB Caviar Black, SATA III, 6Gb/s, 7200rpm (I might add another of these later on)
Motherboard: GA-Z77X-UD5H
Thanks.

 

[aatje92]

Should be fine since that PSU is pretty good, but it's pushing it though, don't expect extreme overclocks and certainly dont go xfire 😛

 

[4745454b]

You are more then fine for a single GTX680, and almost good enough for SLI. The 680 is a 200W card, so you have way more then needed with a 550W gold PSU. Difference between 2GB and 4GB GPU isn't much. It's the die that eats power, not the little ram chips.

 

[edogawa]

You're fine, a 550 watt Seasonic will be quite sufficient wattage and amp wise, even when overclocked. You will likely draw about 250-300 watts when playing games.

 

[aatje92]

You're fine, a 550 watt Seasonic will be quite sufficient wattage and amp wise, even when overclocked. You will likely draw about 250-300 watts when playing games.

yeah depends on the overclock like i said extreme overclocking is out of the question. Besides while gaming it may only pull 250-300w but in the event of full load it would most likely be double that (under extreme overclocks that is)

 

[4745454b]

Again, I disagree. He'd have to be pulling 300W for the GPU, and even if he could OC his CPU up to 200W, that's still fine for a 550W gold rated PSU. He'll be fine with that PSU. There also aren't many ways to stress BOTH the CPU and GPU to the max. Even when gaming you don't hit 100% loads on both. I'm not sure why you seem to think he needs such a beefy unit. Even OC'd he'd be fine.

 

[aatje92]

Seriously, OC'd systems use more than you think, i'll make a pic of my kill a watt meter for you 😉.

 

[Dark Lord of Tech]

550w is fine for 1 card , but I wouln't run 2 with it.

 

[4745454b]

Don't forget to include PSU specs, voltages, and settings please.