Nvidia's G80 innards exposed - Page 2 - Overclock.net

selectodude · 11-02-06

There she is, Adrianne Curry. Much better then Ruby from DAAMIT.

boredom · 11-02-06

Quote:

Originally Posted by HrnyGoat

Thats just for the GPU. Your forgetting the memory and other components. And 768MB of GDDR3 running at 1.8GHz can get quite power hungry. Plus why would it need two power connectors if it was only 140W? Each PCIe connector can supply 150W + 75W that can be supplied by the mother board. That implies that the card uses at least 225W, requiring a second power connector.

6800Ultra any one?

Fishie36 · 11-02-06

Quote:

Originally Posted by HrnyGoat

Thats just for the GPU. Your forgetting the memory and other components. And 768MB of GDDR3 running at 1.8GHz can get quite power hungry. Plus why would it need two power connectors if it was only 140W? Each PCIe connector can supply 150W + 75W that can be supplied by the mother board. That implies that the card uses at least 225W, requiring a second power connector.

I'm betting the second power connector is only there for extreme overclockers who want to push the card to the max. As proof of that look at the GTO which has very similar specs but lower clock speeds and only 1 connector. I don't think upping the core speeds is gonna raise the power requirement enough to require another power connector.

FrankenPC · 11-02-06

Quote:

Originally Posted by Fishie36

I'm betting the second power connector is only there for extreme overclockers who want to push the card to the max. As proof of that look at the GTO which has very similar specs but lower clock speeds and only 1 connector. I don't think upping the core speeds is gonna raise the power requirement enough to require another power connector.

You could be correct. Maybe when the card is at max power, it's overcoming the rated current handling capacity of the 3 12v lines. So they have a second connector to ensure the wires don't burst into flames under those circumstances.

HrnyGoat · 11-02-06

Quote:

Originally Posted by Fishie36

I'm betting the second power connector is only there for extreme overclockers who want to push the card to the max. As proof of that look at the GTO which has very similar specs but lower clock speeds and only 1 connector. I don't think upping the core speeds is gonna raise the power requirement enough to require another power connector.

Its more than just core speeds. More memory, wider bus, more shaders (and higher shader clocks) and higher memory clocks. Add that all up and it can make quite a difference. Not to mention the core and memory are probably running at a higher voltage on the GTX than on the GTS.

boredom · 11-02-06

The 6800U had 2 connection slots, you didn't need both

This looks to be similar

HrnyGoat · 11-02-06

Quote:

Originally Posted by boredom

The 6800U had 2 connection slots, you didn't need both

This looks to be similar

That was more for ensuring stability, as drawing too much current over a single 12V wire will cause the voltage to drop, as sending too much current over a wire will cause it to act like a resistor. Thats why a PCIe plug has 3 12V wires and why it is limited to carrying 150W by the PCIe/ATX spec.

boredom · 11-02-06

This looks to do the same thing, Nvidia did after all recommend a 450w PSU for the 8800GTX

Syrillian · 11-02-06

Thanks for the info.

I have come to think of you as OCN's investigative reporter.

GoDly · 11-02-06

NICE! I Wonder how much better the will R600 be.

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Nvidia's G80 innards exposed

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