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PSU for Ivy Bridge and SLI 670 - Page 5

post #41 of 59
Quote:
Originally Posted by Blindsay View Post

tdp doesnt = power consumption, also have we even actually confirmed the 670s power usage?

Your right, actual power consumption is typically less than TDP further proving my point. And it's pretty safe to say the 670 will have a slightly less tdp than the 680 @ 195w
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post #42 of 59
Quote:
Originally Posted by Jayjr1105 View Post

Your right, actual power consumption is typically less than TDP further proving my point. And it's pretty safe to say the 670 will have a slightly less tdp than the 680 @ 195w

so it puts out more energy in heat then it takes in electricity, that doesnt make any sense
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post #43 of 59
Quote:
Originally Posted by Unoriginal Sin View Post

Quote:
Originally Posted by y2kcamaross View Post

Ivybridge power consumption skyrockets with overclocking, especially when you get into the 4.7-4.8 range
Ivy Bridge is not made for such clocks under daily usage.. the leakage is horrid... for 4.8 you need a pretty hardcore custom loop or benching fans on a high end twin tower air cooler.... what you should shoot for with ivy Bridge is ~4.4 Ghz @ <1.1v... otherwise you're far better off with Sandy Bridge if you're chasing 5Ghz clocks.

4.7 runs quite nicely on my h50, 4.8 as well if you don't mind 90+ degree temps
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post #44 of 59
Thread Starter 
Im just going to jump up to 750w just to be sure I have enough should I want to change something later on. Thanks for the help
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post #45 of 59
Quote:
Originally Posted by Blindsay View Post

so it puts out more energy in heat then it takes in electricity, that doesnt make any sense
We're not debating thermodynamics here... the fact that he can't properly defend his argument does not make him wrong, but more importantly, it does not make you right. wink.gif
In a previous post you play the TDP card to counter my argument and then you throw it at me assuming I did it.. which I find quite hilarious...

Lets forget the TDP for a minute since it's completely and utterly irrelevant... and not an easy rating to understand to begin with(it's defined in relation to a temperature threshold, and that threshold means different voltages for different GPU samples, subsequently it means different power draws and we end up with a rating as accurate as my restroom aim after a bottle of Glenfiddich and/or sex)



Look at this image:
382

How much power do you think that VRM can handle?...
We all know nVidia is very cheap with its reference designs... we've seen the 570 and the 590.... but those card used very expensive GPUs(to manufacture), cost saving was mandatory(in those two cases it seems is was also mandatorily stupid)... but that's not the case here, the card above cost <10$ to make(excluding the GPU and GDDR) and it's sold for 400$... do you really think they needed to put the GPU on a GTS 450 PCB to make it worth their effort!?... they did it because it's sufficient.... and that tells you a lot more about the power consumption than any TDP rating or 680 parallel or w/e.
Quote:
Originally Posted by y2kcamaross View Post

4.7 runs quite nicely on my h50, 4.8 as well if you don't mind 90+ degree temps
Even though they raised the throttling threshold on Ivy to 105°C I wouldn't want my CPU to see temps above 70-75°C in any sort of typical workload/daily usage scenario... and neither should you. wink.gif
Edited by Original Sin - 5/9/12 at 3:42pm
post #46 of 59
Quote:
Originally Posted by Blindsay View Post

so it puts out more energy in heat then it takes in electricity, that doesnt make any sense

No, it's very simple. If a card is rated at 200 watts TDP, it's very unlikely that it will ever come close to 200 watts actual usage under typical use (gaming, rendering, etc.) Just like an i3 rated at 65 watts TDP probably uses a max of 50 watts under load.
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post #47 of 59
Quote:
Originally Posted by Unoriginal Sin View Post

Quote:
Originally Posted by Blindsay View Post

so it puts out more energy in heat then it takes in electricity, that doesnt make any sense
We're not debating thermodynamics here... the fact that he can't properly defend his argument does not make him wrong, but more importantly, it does not make you right. wink.gif
In a previous post you play the TDP card to counter my argument and then you throw it at me assuming I did it.. which I find quite hilarious...

Lets forget the TDP for a minute since it's completely and utterly irrelevant... and not an easy rating to understand to begin with(it's defined in relation to a temperature threshold, and that threshold means different voltages for different GPU samples, subsequently it means different power draws and we end up with a rating as accurate as my restroom aim after a bottle of Glenfiddich and/or sex)



Look at this image:
382

How much power do you think that VRM can handle?...
We all know nVidia is very cheap with its reference designs... we've seen the 570 and the 590.... but those card used very expensive GPUs(to manufacture), cost saving was mandatory(in those two cases it seems is was also mandatorily stupid)... but that's not the case here, the card above cost <10$ to make(excluding the GPU and GDDR) and it's sold for 400$... do you really think they needed to put the GPU on a GTS 450 PCB to make it worth their effort!?... they did it because it's sufficient.... and that tells you a lot more about the power consumption than any TDP rating or 680 parallel or w/e.
Quote:
Originally Posted by y2kcamaross View Post

4.7 runs quite nicely on my h50, 4.8 as well if you don't mind 90+ degree temps
Even though they raised the throttling threshold on Ivy to 105°C I wouldn't want my CPU to see temps above 70-75°C in any sort of typical workload/daily usage scenario... and neither should you. wink.gif
it doesn't ever reach 70 degrees unless running a cpu stress test, hell BF3 barely puts a 45% load on it
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post #48 of 59
Quote:
Originally Posted by Jayjr1105 View Post

No, it's very simple. If a card is rated at 200 watts TDP, it's very unlikely that it will ever come close to 200 watts actual usage under typical use (gaming, rendering, etc.) Just like an i3 rated at 65 watts TDP probably uses a max of 50 watts under load.

A device can draw more power then what its TDP is rated for
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post #49 of 59
TDP is an essentially arbitrary term and depending on the intentions of the manufacturer can be higher, lower, or about the same as actual power draw or heat dissipation. The manufacturer might overstate the TDP to entice partners or customers to give more leeway in their power delivery or heat dissipation systems. Or the manufacturer might state TDP as small as they can get away with to make it seem like a lower consumption part than it really is. Or they may make the TDP approximately equal to the actual power consumption. It varies, and because of this TDP is a practically worthless number unless the manufacturer discloses exactly how they arrived at it and what margin (or lack thereof) is included.
post #50 of 59
Quote:
Originally Posted by y2kcamaross View Post

it doesn't ever reach 70 degrees unless running a cpu stress test, hell BF3 barely puts a 45% load on it
That's a very good sample, or you're obviously lying.
Quote:
Originally Posted by Blindsay View Post

A device can draw more power then what its TDP is rated for
And water is wet...
Are you trolling?.. because if you are, you're doing a pretty good job... and I'd like to give you some rep for it.. so please clarify.

Do either of you two actually have anything to contribute to this thread?.. is there a point to your posting?... how about that power consumption eh!?.. the GTX 670 power consumption that is..
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