boost not working properly on gtx670?

[JAG87]

way to miss the point.

Okay, please be so kind to tell me what the point is.

The way I see it, you're over analyzing Kepler's GPU Boost behavior because you're super anal about 13 mhz, which won't make any perceptible difference in your game play experience.

 

[Zanovar]

Well my card drops once at 70c,no further drops upto 88c then crashes straight away,so cant test if any drops at 90/95 as 88c immediate crash.

 

[toyota]

Okay, please be so kind to tell me what the point is.

The way I see it, you're over analyzing Kepler's GPU Boost behavior because you're super anal about 13 mhz, which won't make any perceptible difference in your game play experience.

the point has been numerous times. why should I have to repeat it when its clear to anyone that actually reads through the thread?

 

[JAG87]

the point has been numerous times. why should I have to repeat it when its clear to anyone that actually reads through the thread?

You're right, don't bother repeating it.

It would just be one more useless post about your FUD of how GPU Boost isn't working properly because you aren't getting all the megahurtz you expected.

 

[toyota]

You're right, don't bother repeating it.

It would just be one more useless post about your FUD of how GPU Boost isn't working properly because you aren't getting all the megahurtz you expected.

yeah I guess you do need to be spoon fed the same info and have it explained to you since you are either too lazy to read or just hell bent on acting like a jerk. really if you have nothing but ignorant comments to share then stay out of the thread.

 

[3DVagabond]

These cards are all over the board with boost clocks. My one vanilla goes to 1125 stock.

Isn't this the "complaint" about GPU boost? You're playing silicon lottery even with stock performance.

 

[toyota]

Isn't this the "complaint" about GPU boost? You're playing silicon lottery even with stock performance.

stock boost performance should be very close on the same type cards. the FTW cards seem to be 1189 boost below 70 for 90% of people and a few are getting just over 1200. now you can buy two of the exact same cards at the same time and end up with a massive difference in overclocking though.

 

[JAG87]

yeah I guess you do need to be spoon fed the same info and have it explained to you since you are either too lazy to read or just hell bent on acting like a jerk. really if you have nothing but ignorant comments to share then stay out of the thread.

What same info?

The only info we have is that your card runs above and beyond what is written on the box, but that is not enough for you and you're complaining because you can't quite understand how GPU boost works. You say and I quote: "that is NOT what it is supposed to do" and "does not work like its supposed to", as if you worked for Nvidia and designed GPU boost, when really you have no better clue other than the crap you read online.

Maybe that's exactly how it's supposed to work.

 

[toyota]

What same info?

The only info we have is that your card runs above and beyond what is written on the box, but that is not enough for you and you're complaining because you can't quite understand how GPU boost works. You say and I quote: "that is NOT what it is supposed to do" and "does not work like its supposed to", as if you worked for Nvidia and designed GPU boost, when really you have no better clue other than the crap you read online.

Maybe that's exactly how it's supposed to work.

so I guess I do have to explain it to you personally all over again? boost is supposed to lower by one 13mhz increment when temps hit 70 C. it supposed to go back to you max boost once temps go back below 70 C. now that is if the criteria is met such as having the TDP available and the gpu actually needing to be loaded that much. I met that criteria in those situations. it also does not even start off at full boost when it should. and again that is if the criteria is met which it was. just restarting the same part of a game can give different results even though nothing has changed as for as gpu demands.

now the POINT is that the boost is not always behaving properly in conditions where I know what it should be doing so that makes me paranoid about monitoring it and worrying that maybe some other issues may crop up. its just like the vsync/framerate cap issue where games are dropping 1 fps below that every few seconds. I guess to you that would seem silly to worry about 1fps but the POINT is that the card is NOT behaving properly. Nvidia will supposedly have a fix the frameratre issue later this month though.

 

[3DVagabond]

stock boost performance should be very close on the same type cards. the FTW cards seem to be 1189 boost below 70 for 90% of people and a few are getting just over 1200. now you can buy two of the exact same cards at the same time and end up with a massive difference in overclocking though.

But the specs are 1006-1084. Do these numbers mean anything? I'm not purposely trying to go off topic, but is your situation just another example of specs not meaning anything?

 

[toyota]

But the specs are 1006-1084. Do these numbers mean anything? I'm not purposely trying to go off topic, but is your situation just another example of specs not meaning anything?

yes what those mean is that 1006 is the lowest the card will go to if you have a really hot case and cant meet temps and tdp or its not a very demanding modern game. the 1084 should be typical lowest boost seen in worst case if the card is left stock and power target is not raised.

 

[JAG87]

so I guess I do have to explain it to you personally all over again? boost is supposed to lower by one 13mhz increment when temps hit 70 C. it supposed to go back to you max boost once temps go back below 70 C. now that is if the criteria is met such as having the TDP available and the gpu actually needing to be loaded that much. I met that criteria in those situations. it also does not even start off at full boost when it should. and again that is if the criteria is met which it was. just restarting the same part of a game can give different results even though nothing has changed as for as gpu demands.

now the POINT is that the boost is not always behaving properly so that makes me paranoid about maybe some other issues cropping up.

Show me the Nvidia white paper that backs up you're claims.

Most cards behave the way you say, but each GPU is tested individually and some might have different tolerance to temperature with regards to leakage and stability. So the boost might be adjusted to scale down 26 Mhz instead, and that might be proper for your GPU where as 13 Mhz wasn't.

You can't just claim that it's not working properly because your results don't reflect what the majority has, when it's obvious that GPU boost is very much a variable and not a constant. GPU Boost has tons of criteria on which it bases it's formula on, and neither you or I are the ones to know how it's innards work with 100% factual evidence.

 

[realjetavenger]

It isn't a white paper but here's AT's explanation of boost relative to temps.

http://www.anandtech.com/show/5699/nvidia-geforce-gtx-680-review/4

"First and foremost, GPU Boost operates on the concept of steps, analogous to multipliers on a CPU. Our card has 9 steps, each 13MHz apart, ranging from 1006MHz to 1110MHz. And while it’s not clear whether every GTX 680 steps up in 13MHz increments, based on NVIDIA’s boost clock of 1058MHz this would appear to be the case, as that would be 4 steps over the base clock."

"Meanwhile GPU temperatures also play an important role in GPU boost. Our sample could only hit the top step (1110MHz) if the GPU temperature was below 70C; as soon as the GPU reached 70C it would be brought down to the next highest step of 1097MHz. This means that the top step is effectively unsustainable on the stock GTX 680, as there are few if any applications that are both intensive enough to require high clockspeeds and light enough to not push GPU temperatures up."

 

[3DVagabond]

yes what those mean is that 1006 is the lowest the card will go to if you have a really hot case and cant meet temps and tdp or its not a very demanding modern game. the 1084 should be typical lowest boost seen in worst case if the card is left stock and power target is not raised.

I think you're missing my point. Sorry for not being clearer. I'm saying that apparently there's no one rule fits all with GPU boost. You get a card, it runs at the clocks it's capable of, and it is what it is.

From looking at what others post, there seems to be quite a range of operating parameters.

 

[xp0c]

At stock boost my card runs at 1202mhz, and if it does go to 70c it only ever drops to 1189.
I only really play BF3, and temps are usually around 58c with 1:1 fan profile. Its always stays at 1202mhz

If the 670 throttles because of heat it's supposed to be in 13mhz increments.
If throttling from GPU load its a different number.
an fps limiter may screw it up.

 

[Zanovar]

At stock boost my card runs at 1202mhz, and if it does go to 70c it only ever drops to 1189.
I only really play BF3, and temps are usually around 58c with 1:1 fan profile

Im interested does it drop again at 80c?

 

[xp0c]

I have never had it in the 80's. I will check.
It should drop another 13mhz.

 

[Zanovar]

I have never had it in the 80's. I will check.
It should drop another 13mhz.

Mine doesnt,would be interesting to see if yours does.

 

[xp0c]

OK I got mine up to 91c, and it only dropped the once to 1189.

I see this in a 670 OC guide over at another Oc forum.

"Each card has a different maximum Kepler Boost. For example, some cards will have a KB value as low as 104MHz (and perhaps even lower) and some as high as 234MHz, the average is somewhere around 130MHz and 143MHz. The only constant is the Kepler Boost is always a multiple of 13 (ie, 13, 26, 104, 130, 234, etc). However, the thing to keep in mind is, the maximum Kepler Boost will only be active when the card is not too hot or drawing too much power. If the card gets too hot, then the Kepler Boost value will be throttled down below its true maximum in 13MHz increments. The first thermal throttle point is at 70C, then 80C, then 85C and lastly at 95C."

 

[Zanovar]

OK I got mine up to 91c, and it only dropped the once to 1189.

Cheers for the info:thumbsup:

Hmm,not sure what youve added above as ive messed around with my card lots passed few hours,(overclocked and not)my card has 1 drop 70c)Anyways i thought this boost is all over the place.

 

[xp0c]

Cheers for the info:thumbsup:

no problem

EDIT: I know, according to them we are out of spec.

 

[Zanovar]

no problem

EDIT: I know, according to them we are out of spec.

i almost bought that galaxy oc btw,hope you enjoy it

 

[xp0c]

i almost bought that galaxy oc btw,hope you enjoy it

Thanks
I had the Gigabyte in my shopping cart, but somehow the transaction didn't go through. They were gone when I tried again so someone else must have had the same card in their cart. lol

 

[skipsneeky2]

I think the temperatures effecting the boost clocks as a whole are a bit conservative,70cel for a video card isn't to hot nor is 80cel,i think at 75cel or so,they should drop them below 1200mhz and if your card is hell bent on going pass 80cel,drop the clocks below 1100mhz at that point.

I got sli gtx670 and its a pain in the ass to keep both at 70cel or lower,i would have to freeze my ass off at 60 degrees,ramp the case fans on my df-85 to high and ramp the cards fans to 80% to sustain 70 cel temps or lower.