[AVL NOW] Countdown to radeon 7990 - page 6.

GenTarkin

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Quote from: rjk on July 31, 2012, 04:37:45 PM

Quote from: jjiimm_64 on July 31, 2012, 04:35:32 PM

I have been waiting for these things since march... i have SeaSonics and mobo ready... but to waste 4 of my precious gpu power connectors on one card... NO THANKS. i hate molex connectors.

bummer....... Angry

Quite so. ~~I can't figure it out, it seems to me that the most logical thing would be 2x 8-pin: 150w each, = 300 watts total, whereas 3x 6-pin: 75w each, = 225 watts total.~~ Huh

Do the PCIe bridge chip and the memory really need as much power as both the GPUs combined? Huh

EDIT: Derp, 4x 6-pins, not 3. Still it works out to the same wattage as 2x 8-pins.

The PCIe bridge chip should use barely any power. The RAM should not use anywhere near the GPU's lol.... that would be madness

rjk

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1ngldh

Quote from: jjiimm_64 on July 31, 2012, 04:35:32 PM

I have been waiting for these things since march... i have SeaSonics and mobo ready... but to waste 4 of my precious gpu power connectors on one card... NO THANKS. i hate molex connectors.

bummer....... Angry

Quite so. ~~I can't figure it out, it seems to me that the most logical thing would be 2x 8-pin: 150w each, = 300 watts total, whereas 3x 6-pin: 75w each, = 225 watts total.~~ Huh

Do the PCIe bridge chip and the memory really need as much power as both the GPUs combined? Huh

EDIT: Derp, 4x 6-pins, not 3. Still it works out to the same wattage as 2x 8-pins.

jjiimm_64

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I have been waiting for these things since march... i have SeaSonics and mobo ready... but to waste 4 of my precious gpu power connectors on one card... NO THANKS. i hate molex connectors.

bummer....... Angry

50BTC.com

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PPS pool

Wondering, would mining on it profitable at release date?

Ilikeham

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Quote from: Cablez on July 30, 2012, 07:46:41 AM

Good god, 4x 6pin power plugs!?!? What a power hog this is gonna be. Roll Eyes

?

Most normal dual GPU cards feature a 2x8 pin power connector arrangement for input of 150 W each (official, they handle more)

This card has 4x6 pin power connector for input of 75W each (official, they handle more). Notice the math there?

The difference is in how it allows handling of incoming power, the power circuitry is unique to this card. These four 6-pin connectors give the card a multiphase power regulation, which is divided into three groups.

So to say it's a power hog based on it's connector style is wrong.

It will undoubtedly be more power hungry than a 690 from the green team, but it will also be faster. This has nothing to do with how many power plugs featured.

Cablez

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