680 OC'ing (what does yours do?)

[moriz]

The card is normally 195w, right? If that's the case, 195 x 1.32 = 257.4w. So no, it doesn't appear to be based on the total available power.

My card is currently doing +125/+400, for an actual boost clock of 1225/1704-ish. My card can apparently boost to 1100mhz at stock.

 

[ViRGE]

The card is normally 195w, right? If that's the case, 195 x 1.32 = 257.4w. So no, it doesn't appear to be based on the total available power.

My card is currently doing +125/+400, for an actual boost clock of 1225/1704-ish. My card can apparently boost to 1100mhz at stock.

The GPU Boost power target is 170W. 195W is the TDP.

 

[DigitalWolf]

My card is currently doing +125/+400, for an actual boost clock of 1225/1704-ish. My card can apparently boost to 1100mhz at stock.

I haven't oc'd the gtx 680 I bought yet (its a Galaxy). However, in gpu-z on the sensors tab if I'm gaming the gpu core clock max is around 1110. The main screen shows a standard boost setting of 1059. (with the 0.6.0 version of gpu-z)


Maybe that's the norm.. I don't know.

 

[bullbearish]

1200 Mhz at 1.162v. Runs at 75C at 50% fan speed. Seems to be doing fine so far with stress test and BF3.

 

[Ferzerp]

The GPU Boost power target is 170W. 195W is the TDP.

That explains the 225W number. 170W * 132% = 225W

 

[chimaxi83]

I've noticed that regardless of my overclock, ever since I put a water block on my card, power usage rarely passes 100%. 4 hours of BF3 total today and it topped out at 107% with +132% set in Afterburner, with 99% usage.

 

[Grooveriding]

I've noticed that regardless of my overclock, ever since I put a water block on my card, power usage rarely passes 100%. 4 hours of BF3 total today and it topped out at 107% with +132% set in Afterburner, with 99% usage.

Still on air and neither of mine ever have gone over 110% and in BF3 they are always at the max 1.175 (1.21) voltage. There are three resistors that measure draw at the PCIE plug and I assume help in reporting the power draw %.

Pretty frustrating there is no voltage control on the 680 when they are not even hitting the 132% power draw with the voltage that is available. I get my blocks in tomorrow, I'll see if they have the same effect on power draw as yours did.

 

[chimaxi83]

Yea before throwing the block on there, it would definitely hit that 132% limit sporadically thru gameplay and testing, once I hit about 65C or so I believe. Now that the card rarely tops 35C, doesn't do it anymore during the same gameplay and testing. Definitely a correlation, in my opinion.

I agree, lack of voltage control is frustrating. This card has potential, hitting neary 1300 on the core on stock voltage. Reading some of the crazy vmod guides, they were hitting about 1400 at 1.3V on air 😱

 

[superjim]

+100mhz offset is the most I can get in EVGA precision.

I don't get much added performance with oc'ing at all on the 680, doesn't seem worth it. Maybe i'm doing it wrong.

Same results here on same card. I can get +100/+100 132% stable in 3DMark11 but not gaming. Always get a driver crash and then have to reboot to un-confuse the 680/Precision. Not worth the trouble. Highest clocks I've seen at all-stock setting is 1084mhz core. Highest temps I've seen while gaming is 79C after 2 hours of Batman AC.

 

[superjim]

EVGA's top-end is 1100+ core stock, 1200+ boost.

OCGuy, what do you mean by this? Are you saying EVGA is setting a hard limit on clocks?

 

[chimaxi83]

OCGuy, what do you mean by this? Are you saying EVGA is setting a hard limit on clocks?

Definitely not, all cards are reference and basically luck of the draw with OC potential, and I've seen EVGA cards with +200 offset with new default of 1206 and boosting to 1259 stable.