Enough Power 780ti?

[hatycat]

So I have a kind of crappy 700W OCZ 80+ PSU, that I was orignally ugrading with the purchase of an R9 290, but unfortuanately litecoin miners decided to go and ruin AMD for everybody. And then I waited 70 days dealing wtih dell's horrible customer service, becuase they were the last ones to have it at MSRP. Anyway TL;DR I cancelled that order, and am just going to say screw it and buy a 780ti. problem is I can not afford a new PSU and a 780ti.

So I run a year old OCZ 700w 80%+ psu (year old cause capacitor aging might be a thing) and I already have a 8350 running 4.8ghz at around 1.5V, a pump and 10 noctua fans. Will the PSU support a 780ti? PSU calculators say I am good, but I never understood if they took efficency into account or not.
 

[Liam-McShane]

Yes, you're more than good on an 80+ 700W PSU.

[TheNinjaNextDor]

Way more than good.

[AndyCapets]

700W is plenty enough for a 780Ti, trust us, we r expurtz xdxd

[Izaya Orihara]

Fine. Even tho i would upgrade it. (the PSU) 

[Underachiever101]

Well the efficiency of your power supply will only effect the longevity of the parts internally as they supply that much power. Plus your electric bill will be higher with a lower efficiency PSU but not something you should notice. That should plenty for a single 780ti, but watch out if you plan on expanding (SLI, intel cpu, etc...).

[hatycat]

Wow, thanks for the fast replies everyone/ I knew it would be enough for a 780ti, it's just I was not sure, considering my 8350 OCd is  a huge power hog. And I have a lot of other crap.

 

 

Fine. Even tho i would upgrade it. (the PSU) 

I definately will eventually.

[Jamdude]

Definitely enough, take a look at this basically showing how little wattage you actually need contrary to popular belief.

[CoolBeans]

You could be fine with 550

[VSG]

Which 780 Ti are you buying and what do you intend to do with it? Without knowing this, I am dismayed everyone is just going by wattage for a reference, voltage locked 780 Ti.

[hatycat]

Which 780 Ti are you buying and what do you intend to do with it? Without knowing this, I am dismayed everyone is just going by wattage for a reference, voltage locked 780 Ti.

Wait all the reference cards are voltage locked? Damn nvidea...

Anyway I am going to slap a waterblock on it and OC as much as possible, but if hit a PSU bottleneck I can work with stock speeds, until I can afford a new PSU.

[VSG]

Every 780 Ti you can buy, save the EVGA Classified and Classified Kingpin Edition, is voltage locked to 1.212V max. Do you have a wattmeter? If so, measure usage as it is now at CPU load- I bet that 8350 at 1.5V is consuming a lot more than you would expect. Then account for the card you wish to use- give it 300 to 350W if stuck at 1.212v. Remember to account for PSU efficiency when looking at the wattmeter readings.

[hatycat]

Balls, I am okay running everything at stock till PSU is upgraded, then I can switch to custom BIOS and OC my brain, out.  Unfortuanately I do not have access to a wattmeter, else I would have already done that. I have no doubt in my mind that my 8350 is sipping power like crazy.  I wonder how different a stock 780ti could be in power though, compared to the 7870 I am currently running at 1.3volts.

Edit: meant no doubt.

[MegaTechPC]

A 700W PSU is plenty for any single video card setup.  Now whether or not your particular PSU is up to the challenge I can't say but if it is functioning properly it should have no trouble with a single 780Ti.  Add another and you'll want more power for sure...

[VSG]

Again, you can't just say that without knowing what card and setup one is running. My single 780Ti setup consumes close to 800w when benching and with 2 cards I have crossed over 1250-1300w at times.

[creativename]

You can run a 780ti and an overclocked i5 with a 450w psu.

[creativename]

Again, you can't just say that without knowing what card and setup one is running. My single 780Ti setup consumes close to 800w when benching and with 2 cards I have crossed over 1250-1300w at times.

That's not right....

[VSG]

Please do not quote that video to me as fact, I have already made my points clear about it in another thread. As far as saying my numbers are not right- do you know what happens if you overvolt a GPU? It can consume much more than its rated TDP.