boxleitnerb
Platinum Member
- Nov 1, 2011
- 2,605
- 6
- 81
If the video card market is contracting like some reports have suggested, going for high profit parts probably makes sense.
Since you speak of throttling, you clearly have no idea what you're talking about.
Yes i do. You just dont get the analogy.
GPU's used to be set at say 800mhz then you would clock to 900 and it would be stable until pushed to 80c and then it would crap out.
Boost is just the same. It pushed to 900mhz until it gets hot and then drops the clocks to 850 then 800 again.
Temporary overclock. This used to be called instability when your OC couldnt handle the heat and used to crap out. Why do you think watercooling was invented?
This is all boost is.
Again wrong. You don't differentiate between boosting less due to thermal and power constraints and instability in general for whatever reasons. The boost CAN go higher and be stable at that (in a reasonable frequency range) - the point is, it isn't allowed to in many situations with default settings.
If my frequency is stable, I could raise the targets and play at 90-94°C at let's say 1100 MHz all day long and it wouldn't matter.
Again wrong. You don't differentiate between boosting less due to thermal and power constraints and instability in general for whatever reasons. The boost CAN go higher and be stable at that (in a reasonable frequency range) - the point is, it isn't allowed to in many situations with default settings.
If my frequency is stable, I could raise the targets and play at 90-94°C at let's say 1100 MHz all day long and it wouldn't matter.
Heat causes instability.
This is why with LN2 people clock CPU's to 7ghz
Boost works with the TDP and heat, thats pretty much it.
When you increase the boost you just increase the TDP to the thermal limits of the GPU.
Either you still do not understand his first comment, or you do not understand that the GPU becomes unstable with heat.
but I am kind of thinking both.
Where is the problem? Any GPU can fail at high frequencies and high temps. That still doesn't prove that GK110 "doesn't clock well". And btw, we don't know how Nvidia sets the power and temperature targets and how this will affect the 780 in the end.
I understand perfectly. I'm not talking extreme OC. For that it's natural that you need a good cooling solution. If you adjust the fan curve or put it under water, GK110 does indeed clock well, contrary to what Fx1 says. I concur that it's not that easy anymore since you have to think about multiple things. But that doesn't change the OC potential of the GPU itself.
If you think a Boost to 1100mhz is good on Titan then a 7970 could boost to 1400mhz in the same way.
I personally would want my OC rock solid and not fluctuating. Boost is a way they improve benchmark performance and keep RMA's down. Personally i dont like it that much. Id rather fine tune my max OC and then tune my games to hit 60 FPS on max possible settings. I cant be doing with my clock speeds changing by 100-200mhz and my fps taking a dip when the sun comes out.
I love the boost feature. If my game is demanding I boost to 1175 and stay there until the demand goes away. If I play something less demanding my boost barely jumps.
I think it is a great way to save power and heat.
I can understand why people wouldn't like it if the thing throttled, but I have not experienced that in my card. Infact I have it 80c without any drop in boost.
But boost doesn't do this, look at the graph, the Titan fluctuates in almost precisely the same way as the 7970. There are no sudden dips that aren't present on the 7970.
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I have a galaxy card and they do not throttle.
Galaxy rep said they are rated up to 105.
I have a galaxy card and they do not throttle.
Galaxy rep said they are rated up to 105.
Unlike GPUs based on the Fermi architecture, the GeForce GTX 680 have two different graphics clock speeds - a Base Clock, and a Boost Clock. The GeForce GTX 680 has a Base Clock of 1006 MHz and a Boost Clock of 1058 MHz, or slightly more than 5% above the Base Clock. The Base Clock is the minimum clock speed the GPU is guaranteed to achieve while running under load in applications that push the GPU to its TDP limit.
The Boost Clock, on the other hand, is the average clock speed that GPU will run under load in applications that do not cause the GPU to hits its TDP limit. Although it may appear to be a "target clock speed" for Boost Clock, it is really just a marketing tool - it denotes what the typical clock speed boost you can expect from GPU Boost while running a typical game. No matter what the Boost Clock is set at, GPU Boost will base its overclocking on the app's power usage and the preset power target. If there is additional power headroom, GPU Boost will increase the clock speed beyond the Boost Clock. In NVIDIA's internal tests, GPU Boost had been observed to ramp up the graphics clock speed to 1.1 GHz and beyond.
I have a galaxy card and they do not throttle.
Galaxy rep said they are rated up to 105.
If it's a kepler card it definitely throttles at 70C and 80C. All kepler cards do this, it's part of the design. It's not a question of whether a brand does it, again - part of the design. They will throttle by 1 bin generally speaking (13mhz) whenever the threshold is hit, and will adjust voltage accordingly. If it remains at the threshold, it will throttle another 13mhz.
You can very clearly see throttling if you monitor with MSI afterburner OSD, whenever you hit the 70C or 80C thresholds. To beat a dead horse once again, it's the design built into the chip and built into the drivers, there is no avoiding it. The only way around it is with the MSI lightning series, which nvidia didn't take kindly to.
I want my watercooled TRI SLI 780s!!!
must get them b4 adamK.... :sneaky:
Maybe i'll actually get to unlock its true prowess this year with the games coming out.
IIRC, the GK110 Keplers do not throttle @ 80C. Can't remember where I read that so I'll look for some documentation. If you have some documentation on the throttle level on the GK110, please post it. Thanks.
I can guarantee you it does not throttle at 70c
I have run heaven well above 80c and no throttling.
I know many others who have the same. I have also spoken to the galaxy rep because they allow their card to go well above 70 in the fan profile and they have guaranteed me it will not throttle. Since I have seen no evidence of throttling above 80c (my card is set to hit 1175 and I have monitored it's boost through gpuz for over 30 minutes above 80c) I have to assume there is a disconnect in the logic that all cards throttle.
