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[Various] AMD’s Zen Eight Core CPU Delivers Double the Performance of the FX 8350 (Update 2) - Page 49

post #481 of 564
Quote:
Originally Posted by EniGma1987 View Post

if voltage were going down and current going up then wattage would stay the same and thus power stays the same. Volts*Amps=Watts. A low power factor would also cause the customer to be charged more by the electric company, as the electric company "sees" the load higher that the true wattage being drawn, so even though wattage would be the same if the power factor is dropping then they are being charged like it is drawing more power.
That's not how electric meters work, even the electromechanical ones instantaneously multiply current by voltage when counting how much energy you're using(https://www.youtube.com/watch?v=xtModjpxfxM), they're not just measuring current. Now, industrial customers are often required to keep power factor within some limits, but that's usually in the form of adding capacitors to help balance inductive loads.
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post #482 of 564
To add to that, electricity company needs to spend more money and resources than needed to sustain a high imaginary load, that's why they charge you more if you have a really low power factor (which means you are drawing too much imaginary powers).

The reason why the fans use more power when pointed at nothing might be because it spin at a higher RPM due to the very low air resistance, which drew more power.
Edited by TheLAWNOOB - 6/7/16 at 12:18pm
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post #483 of 564
Quote:
Originally Posted by TheLAWNOOB View Post

To add to that, electricity company needs to spend more money and resources than needed to sustain a high imaginary load, that's why they charge you more if you have a really low power factor (which means you are drawing too much imaginary powers).

That is what I was trying to say but w/e
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post #484 of 564
Quote:
Originally Posted by Waitng4realGPU View Post

If the cpu is 3Ghz and performs like that then it's a massive win for AMD.

Personally I think these said results are on a high clocked Zen probably in the 4ghz-4.5ghz range.

Would love to see a lower clocked X8 at 3-3.5ghz for about $500. Overclocker's dream biggrin.gif

If Zen has to push 4.5 Ghz to just get 5960x performance, then they have completely failed to get Haswell IPC, which means Zen is utter garbage.

My ancient x5650 can match a stock 5820k in benchmarks when it's OC'd to 4.5 Ghz.

If Zen = Westmere = Garbage!


Hell, an OC'd 8350 should have performance roughly equal to that, if we consider it as only 4 cores.
Edited by mysticjbyrd - 6/7/16 at 3:36pm
post #485 of 564
Quote:
Originally Posted by Blameless View Post

Quote:
Originally Posted by cssorkinman View Post

That would be reflected in wattage values, wouldn't it?

Yes.
Quote:
Originally Posted by cssorkinman View Post

Something I've observed in the workplace has puzzled me. We have 4 large volume fans , each powered by 500hp electric motors producing 1.5 million CFM. If you set up our facility in a manner where they are generating little to no pressure ( the fans are basically free-wheeling) , the amp gauges will read higher than if you pressurize the building to 7 + inches of water column. Can you explain why this happens?

Assuming these fans are cooling things and that feathering the blades to make them free wheeling causes them to move less air, and other equipment to run warmer, that is probably responsible for the power differential you see.

Cooler running electronics, all other things being equal, use less power because of lower resistance.

The facility has a number bins that air can be directed to via a common plenum. During pre-season testing , these bins are empty and provide little resistance to the airflow. When in operation the bins have material in them creating normal operating pressures of 7 to 10 inches of water column in the plenum. They pull about 20% more amps during preseason testing ( about 1" water column in plenum) than they do during normal operation. Given what I know about how much power it takes to create pressure, it's something that I've struggled to understand.

I appreciate the replies given on the subject.

My questions are usually better than my answers , wonder what that says about me ? tongue.gif
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post #486 of 564
Quote:
Originally Posted by mysticjbyrd View Post

If Zen has to push 4.5 Ghz to just get 5960x performance, then they have completely failed to get Haswell IPC, which means Zen is utter garbage.

My ancient x5650 can match a stock 5820k in benchmarks when it's OC'd to 4.5 Ghz.

If Zen = Westmere = Garbage!


Hell, an OC'd 8350 should have performance roughly equal to that, if we consider it as only 4 cores.

That's great, one guy speculates a bunch of nonsense then another takes the mantle to speculate even more.
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post #487 of 564
Quote:
Originally Posted by Robenger View Post


That's great, one guy speculates a bunch of nonsense then another takes the mantle to speculate even more.

 

He's got a fancy equation in there though, seems legit. 

     
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post #488 of 564
Quote:
Originally Posted by SuperZan View Post

He's got a fancy equation in there though, seems legit. 

That's it, I'm dividing by zero.
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post #489 of 564
Quote:
Originally Posted by Robenger View Post


That's it, I'm dividing by zero.

     
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post #490 of 564
Quote:
Originally Posted by Robenger View Post

That's it, I'm dividing by zero.

Can I take the limit of your function? biggrin.gif
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