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680 SLI Power Draw

Kaapstad said:
This is the bit that got my attention. An extra 205W going from 4.6 to 5.0Ghz
Click to expand...

That includes overclocking the cards as well
power 131%
+85 on the cores
+490 on the mem

Also 24/7 was cards @ stock

I'll double check to make sure the values are correct and let you know.:)

Knowing me I probably screwed up :(
 
whyscotty said:
That includes overclocking the cards as well
power 131%
+85 on the cores
+490 on the mem

Also 24/7 was cards @ stock

I'll double check to make sure the values are correct and let you know.:)

Knowing me I probably screwed up :(
Click to expand...

Phew thats a relief

Its safe for me to go ocing again.:D
 
Rusty0611 said:
There was a discussion a while back regarding the power draw of 2 Kepler cards in SLI and there was talk of needing an 850W PSU "to be safe" and that you will run close to the limit with 750W and as such limit the life of your PSU.

Well I have just tested with a power monitor and with both cards fully going for it with 99% usage in BF3 in Surround, power usage was:

450W

While I can clearly see and agree with the argument that you should buy a good quality PSU, to say you need greater than 750W is incorrect as even with 750W there is a large headroom there. :)
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cards are becoming more efficient, but now I feel I've wasted money buying a Seasonic because of advise on here :(
 
majnu said:
cards are becoming more efficient, but now I feel I've wasted money buying a Seasonic because of advise on here :(
Click to expand...

The problem is people don't actually test it before they advise and advise in a way that makes their advice sound completely authoritative.

You should always get a good PSU though, that's undoubted.

I left my power monitor while gaming for about 3 hours and then checked the "max" recorded on it. It was 520W. And that is with the rig in my signature all with overclocks on. Every time I looked it was around 430-470W though.
 
james_2k said:
but the i7 920 uses more juice
Click to expand...
I can remember someone on here running gtx 470's on an sb based system, cards were at the same clocks as mine in my old 920 rig, pretty similair range of other components. Iirc, the guy stated a total power draw at the wall of 600w, 30 less than my setup when gaming.
 
Rusty0611 said:
The problem is people don't actually test it before they advise and advise in a way that makes their advice sound completely authoritative.

You should always get a good PSU though, that's undoubted.

I left my power monitor while gaming for about 3 hours and then checked the "max" recorded on it. It was 520W. And that is with the rig in my signature all with overclocks on. Every time I looked it was around 430-470W though.
Click to expand...

I'm still a novice into PC gaming therefore rely on the better judgement of others, but I guess you're right and I've learnt a valuable lesson. I'm still :(though.
 
Got a power monitor and from the wall with everything overclocked (5GHZ CPU @ 1.495V + 680 LTG SLI @ 1346mhz), my power usage is hitting 800W :eek:

I think I need to upgrade my PSU :mad:

Edit: Just turned off all 3 monitors while benching at the same as above specs and I am hitting 760W the only thing left with power is the speakers...I need a new PSU.
 
Last edited:
gregster said:
Got a power monitor and from the wall with everything overclocked (5GHZ CPU @ 1.495V + 680 LTG SLI @ 1346mhz), my power usage is hitting 800W :eek:

I think I need to upgrade my PSU :mad:
Click to expand...

800w @ the wall is always more than what the psu is actually using. If your psu is 85 percent efficiency your system is using 680w.

That's very high still, to be expected though with those overclocks.
 
spixelspixel said:
800w @ the wall is always more than what the psu is actually using. If your psu is 85 percent efficiency your system is using 680w.

That's very high still, to be expected though with those overclocks.
Click to expand...

Yep and my concern is when I get my 680's under water, I will be pushing them higher than the 1.2120V I currently have.
 
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