Radeon 7990 `at' the wild | Bitcointalksearch.org

Amph

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Quote from: rograz on May 03, 2013, 09:39:26 PM

Quote from: Miner99er on April 05, 2013, 11:39:34 PM

Also another reason for 7990s is the increased density.

How are you getting higher density? Are you going to run more than 3 of them in 1 rig? are you going to run them in a rack? If not then get 6x7950/7970s and have the same density. The only density that matters is mh/rig, mh/card is irrelevant.

For every 7990 you buy you could have had 3.5-4x7950s depending on at what price you can find them, how does it make any sense to pick the 7990. Even counting the extra motherboard requirements etc you would still be looking at 3x7950 vs 1x7990 price wise. Justify that please, all I get when I have asked is "it's my money and I can do what I want"

density also mean less space occupied, less cumbersome, more in the same place

greaterninja

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Quote from: goxed on May 09, 2013, 07:42:42 PM

Are the Malta's any different with mining / Power ?

my malta does 375w for the card, 1100-1250mh/s

576mh/s per gpu @ 1000mhz per gpu (stock speed) so thats 1152 mh/s running stock speed.

Pretty efficient on power usage.

goxed

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Are the Malta's any different with mining / Power ?

420

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Quote from: greaterninja on May 03, 2013, 11:04:27 PM

I think it should be noted that this Devil 13 is a 3 slot 7990, the newest 7990s are 2 slot and they OC and cool better.

this Devil 13 is at 925mhz stock. (3 slots)

the new 7990 are 950mhz stock and oc to ~1100mhz @ 80C. (2 slots)

link please

greaterninja

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I think it should be noted that this Devil 13 is a 3 slot 7990, the newest 7990s are 2 slot and they OC and cool better.

this Devil 13 is at 925mhz stock. (3 slots)

the new 7990 are 950mhz stock and oc to ~1100mhz @ 80C. (2 slots)

rograz

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Quote from: Miner99er on April 05, 2013, 11:39:34 PM

Also another reason for 7990s is the increased density.

How are you getting higher density? Are you going to run more than 3 of them in 1 rig? are you going to run them in a rack? If not then get 6x7950/7970s and have the same density. The only density that matters is mh/rig, mh/card is irrelevant.

For every 7990 you buy you could have had 3.5-4x7950s depending on at what price you can find them, how does it make any sense to pick the 7990. Even counting the extra motherboard requirements etc you would still be looking at 3x7950 vs 1x7990 price wise. Justify that please, all I get when I have asked is "it's my money and I can do what I want"

rograz

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So the e-peen contest has begun, if I glue 3x7970 together will you buy that for $2000 as well? (premium goes up per card ofc)

420

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Quote from: dogie on April 06, 2013, 08:35:03 AM

Quote from: mdude77 on April 05, 2013, 09:59:58 PM

Quote from: dogie on April 04, 2013, 10:17:52 AM

I looked at 7990s over 7970s last night, it doesn't make sense to me.

ROUGHLY same power consumption, ROUGHLY same max OC, same hashing power at same clocks.

But 2x7970s £560 and 7990 costs £730+ if you can find it. Even factoring in reductions in 'specialist' motherboard requirements for the equivalent of 4 cards, and case requirements, it doesn't come close to paying for itself.

Higher resale value? I just picked one up..

M

Yeah I ate my words, swapped 4x 7970s for 2x 7990 and a 7970 Cheesy

Thanks again for the free power, landlord.

what are you hashing at?

dogie

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Quote from: mdude77 on April 05, 2013, 09:59:58 PM

Quote from: dogie on April 04, 2013, 10:17:52 AM

I looked at 7990s over 7970s last night, it doesn't make sense to me.

ROUGHLY same power consumption, ROUGHLY same max OC, same hashing power at same clocks.

But 2x7970s £560 and 7990 costs £730+ if you can find it. Even factoring in reductions in 'specialist' motherboard requirements for the equivalent of 4 cards, and case requirements, it doesn't come close to paying for itself.

Higher resale value? I just picked one up..

M

Yeah I ate my words, swapped 4x 7970s for 2x 7990 and a 7970 Cheesy

Thanks again for the free power, landlord.

vvic

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Quote from: mdude77 on October 01, 2012, 05:16:26 AM

Quote from: goxed on October 01, 2012, 04:20:37 AM

Powercolor Devil 13 7990.
Link to Album with actual voltage measurements. http://imgur.com/a/kFqHC#2 The real voltage is 0.944 while afterburner shows 1.000

One question: Why? Unless I'm missing something, this has no place in mining. A year ago maybe, but not now.

Bragging rights? Gaming? Had $1000 (or equiv) sitting around burning a hole in your (virtual) pocket? Think it's going to be a cold winter, needed an extra heat source?

I'm sure it looks nice.. would I want one? No..

M

Litecoin mining, for example

Miner99er

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Also another reason for 7990s is the increased density.

No you're not going to beat FPGA's and ASIC's on the power front, but these GPU's are way easier to obtain. And if you're electricity costs are low enough you can stay in the game with GPU's far longer than those who suffer the cost issues of running them.

mdude77

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Quote from: dogie on April 04, 2013, 10:17:52 AM

I looked at 7990s over 7970s last night, it doesn't make sense to me.

ROUGHLY same power consumption, ROUGHLY same max OC, same hashing power at same clocks.

But 2x7970s £560 and 7990 costs £730+ if you can find it. Even factoring in reductions in 'specialist' motherboard requirements for the equivalent of 4 cards, and case requirements, it doesn't come close to paying for itself.

Higher resale value? I just picked one up..

M

Miner99er

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I'm still buying 7970's... if the official 7990 comes out, I'll buy that too and sell these 7970s...

Until ASICs are available for purchase in quantities... GPU mining for BTC (and especially LTC) is a viable option.

dogie

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I looked at 7990s over 7970s last night, it doesn't make sense to me.

ROUGHLY same power consumption, ROUGHLY same max OC, same hashing power at same clocks.

But 2x7970s £560 and 7990 costs £730+ if you can find it. Even factoring in reductions in 'specialist' motherboard requirements for the equivalent of 4 cards, and case requirements, it doesn't come close to paying for itself.

goxed

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Quote from: BBQKorv on April 04, 2013, 06:03:09 AM

I went and bought 2 of those 7990. They are very nice hardware, easy to fit 4 GPUs in to somewhat normal box and just leave the sidepanel open for the heat to escape.

And there are some benefits of 7990s in gaming too Wink

No wonder they are OOS at newegg
http://www.newegg.com/Product/Product.aspx?Item=N82E16814131483&Tpk=7990&IsVirtualParent=1

BBQKorv

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I went and bought 2 of those 7990. They are very nice hardware, easy to fit 4 GPUs in to somewhat normal box and just leave the sidepanel open for the heat to escape.

And there are some benefits of 7990s in gaming too Wink

goxed

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Quote from: deathcode on March 21, 2013, 05:19:05 PM

Quote from: goxed on March 21, 2013, 05:13:03 PM

Quote from: 420 on November 27, 2012, 07:14:15 PM

alright just waiting for sub-'an arm and a leg' price

Running 2 7990 cards. These look like made of binned 7970, the ones with the lowest heat dissipation at given voltage / speed. They can be nicely overclocked in an open case to around 1100Mhz in a cool room ~70F. At 70 - 80F these are happy to run at 1GHz. The voltage of one core is adjustable but another core is locked (unfortunately). Speeds of both cores are adjustable.

And suddenly, GPU mining is profitable again...

LTC mining! This is a great LTC card as well.

deathcode

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Quote from: goxed on March 21, 2013, 05:13:03 PM

Quote from: 420 on November 27, 2012, 07:14:15 PM

alright just waiting for sub-'an arm and a leg' price

Running 2 7990 cards. These look like made of binned 7970, the ones with the lowest heat dissipation at given voltage / speed. They can be nicely overclocked in an open case to around 1100Mhz in a cool room ~70F. At 70 - 80F these are happy to run at 1GHz. The voltage of one core is adjustable but another core is locked (unfortunately). Speeds of both cores are adjustable.

And suddenly, GPU mining is profitable again...

goxed

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Activity: 1946

Merit: 1006

Bitcoin / Crypto mining Hardware.

Quote from: 420 on November 27, 2012, 07:14:15 PM

alright just waiting for sub-'an arm and a leg' price

Running 2 7990 cards. These look like made of binned 7970, the ones with the lowest heat dissipation at given voltage / speed. They can be nicely overclocked in an open case to around 1100Mhz in a cool room ~70F. At 70 - 80F these are happy to run at 1GHz. The voltage of one core is adjustable but another core is locked (unfortunately). Speeds of both cores are adjustable.

420

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alright just waiting for sub-'an arm and a leg' price

Topic: Radeon 7990 `at' the wild (Read 9091 times)