Author

Topic: Radeon 7990 `at' the wild (Read 9112 times)

legendary
Activity: 3248
Merit: 1070
May 10, 2013, 05:31:49 AM
#53
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
hero member
Activity: 924
Merit: 1000
May 09, 2013, 08:10:51 PM
#52
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.  
legendary
Activity: 1946
Merit: 1006
Bitcoin / Crypto mining Hardware.
May 09, 2013, 07:42:42 PM
#51
Are the Malta's any different with mining / Power ?
420
hero member
Activity: 756
Merit: 500
May 03, 2013, 11:07:55 PM
#50
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
hero member
Activity: 924
Merit: 1000
May 03, 2013, 11:04:27 PM
#49
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)

hero member
Activity: 575
Merit: 500
May 03, 2013, 09:39:26 PM
#48
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"
 
hero member
Activity: 575
Merit: 500
May 03, 2013, 09:24:36 PM
#47
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
hero member
Activity: 756
Merit: 500
May 03, 2013, 07:34:16 PM
#46
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?
legendary
Activity: 1666
Merit: 1185
dogiecoin.com
April 06, 2013, 08:35:03 AM
#45
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.
full member
Activity: 145
Merit: 105
April 06, 2013, 02:26:07 AM
#44
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
sr. member
Activity: 310
Merit: 250
April 05, 2013, 11:39:34 PM
#43
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.
legendary
Activity: 1540
Merit: 1001
April 05, 2013, 09:59:58 PM
#42
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
sr. member
Activity: 310
Merit: 250
April 05, 2013, 12:02:25 AM
#41
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.
legendary
Activity: 1666
Merit: 1185
dogiecoin.com
April 04, 2013, 10:17:52 AM
#40
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.
legendary
Activity: 1946
Merit: 1006
Bitcoin / Crypto mining Hardware.
April 04, 2013, 07:43:42 AM
#39
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
sr. member
Activity: 280
Merit: 250
April 04, 2013, 06:03:09 AM
#38
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
legendary
Activity: 1946
Merit: 1006
Bitcoin / Crypto mining Hardware.
April 03, 2013, 10:42:16 PM
#37
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...
Smiley
LTC mining! This is a great LTC card as well.
copper member
Activity: 1428
Merit: 253
March 21, 2013, 05:19:05 PM
#36
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...
Smiley
legendary
Activity: 1946
Merit: 1006
Bitcoin / Crypto mining Hardware.
March 21, 2013, 05:13:03 PM
#35
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
hero member
Activity: 756
Merit: 500
November 27, 2012, 07:14:15 PM
#34
alright just waiting for sub-'an arm and a leg' price
legendary
Activity: 1946
Merit: 1006
Bitcoin / Crypto mining Hardware.
November 27, 2012, 07:04:42 PM
#33
Yeah two cores will show up seperately for dual GPU cards.  Seeing as how my 5970s get ~360 each at 810 core, coupled with architectural and clock improvements, this sounds very reasonable to expect (550 per core).

7990 in stock Newegg

7990 http://www.newegg.com/Product/Product.aspx?Item=N82E16814131483

Devil 13 http://www.newegg.com/Product/Product.aspx?Item=N82E16814131479
hero member
Activity: 533
Merit: 500
October 23, 2012, 05:19:08 PM
#32
Yeah two cores will show up seperately for dual GPU cards.  Seeing as how my 5970s get ~360 each at 810 core, coupled with architectural and clock improvements, this sounds very reasonable to expect (550 per core).
legendary
Activity: 952
Merit: 1000
October 23, 2012, 12:58:18 AM
#31
ZOMF FAKE PHOTO IS FAKE.  OCL drivers talk to the device level bridge chip, not to the two individual 7970 component subsytems. 
Huh? On my 5970s they showed up as GPU0 and GPU1, very similar to what that pic looks like.
full member
Activity: 210
Merit: 100
October 23, 2012, 12:57:20 AM
#30
Holy hell Niceee
legendary
Activity: 2156
Merit: 1072
Crypto is the separation of Power and State.
October 22, 2012, 11:48:23 PM
#29
WTF IS THE MH/S!?!?!

my guess is 1000-1200

I can get 600 when pushing my 7950 at 1150/500...

That's a 7950. This is 2x 7970s, which gets 550MH/s per core at 925MHz, which is exactly what was expected. Switch to the alternative BIOS, which OCs to 1000MHz, and you should get almost 600MH/s.

Pic from the Imgur in the first post: http://imgur.com/a/kFqHC#1


ZOMF FAKE PHOTO IS FAKE.  OCL drivers talk to the device level bridge chip, not to the two individual 7970 component subsytems. 
full member
Activity: 182
Merit: 100
October 22, 2012, 11:38:33 PM
#28
Dude has a 7990...and a PATA dvd rom? Can I donkey punch him for that? Or did he save all his upgrade money for the past 10 years for the 7990 and couldn't afford a new DVD-rom? What decent motherboard even comes with PATA anymore?
legendary
Activity: 1428
Merit: 1001
Okey Dokey Lokey
October 22, 2012, 04:29:37 PM
#27
legendary
Activity: 952
Merit: 1000
legendary
Activity: 1428
Merit: 1001
Okey Dokey Lokey
October 22, 2012, 11:42:29 AM
#25
WTF IS THE MH/S!?!?!

my guess is 1000-1200

I can get 600 when pushing my 7950 at 1150/500...

That's a 7950. This is 2x 7970s, which gets 550MH/s per core at 925MHz, which is exactly what was expected. Switch to the alternative BIOS, which OCs to 1000MHz, and you should get almost 600MH/s.

Pic from the Imgur in the first post: http://imgur.com/a/kFqHC#1
Nice monitor!
legendary
Activity: 952
Merit: 1000
October 21, 2012, 08:57:18 PM
#24
WTF IS THE MH/S!?!?!

my guess is 1000-1200

I can get 600 when pushing my 7950 at 1150/500...

That's a 7950. This is 2x 7970s, which gets 550MH/s per core at 925MHz, which is exactly what was expected. Switch to the alternative BIOS, which OCs to 1000MHz, and you should get almost 600MH/s.

Pic from the Imgur in the first post: http://imgur.com/a/kFqHC#1
hero member
Activity: 616
Merit: 500
October 21, 2012, 08:51:22 PM
#23
WTF IS THE MH/S!?!?!

my guess is 1000-1200

I can get 600 when pushing my 7950 at 1150/500...
legendary
Activity: 1428
Merit: 1001
Okey Dokey Lokey
October 21, 2012, 08:45:33 PM
#22
WTF IS THE MH/S!?!?!
hero member
Activity: 518
Merit: 500
October 21, 2012, 04:45:14 AM
#21
I bet it runs at 80c in good conditions, that fan style is not good. The cgminer pic looks like it just got turned on.
420
hero member
Activity: 756
Merit: 500
October 14, 2012, 12:24:04 AM
#20
fuck me
full member
Activity: 213
Merit: 100
October 14, 2012, 12:13:41 AM
#19
So 30% of the hashrate for 70% of the price and (I'm guessing here) 400% power draw? How is this worth it?

Bragging rights.
member
Activity: 112
Merit: 10
October 13, 2012, 11:00:40 PM
#18
power draw of only 300 watts while hashing? seems quite low
legendary
Activity: 952
Merit: 1000
October 13, 2012, 10:05:39 PM
#17
if you click on the link for pictures you would see it hashing away at 550mh/s per gpu 1100mh/s total
That sounds about right for a 7970 @ 925MHz. Bump them to 1100, and you could get 1200mh/s.
sr. member
Activity: 438
Merit: 250
October 13, 2012, 09:50:14 PM
#16
if you click on the link for pictures you would see it hashing away at 550mh/s per gpu 1100mh/s total
legendary
Activity: 952
Merit: 1000
October 13, 2012, 08:51:23 PM
#15
Does it get that 1.3Ghash/s?

maybe it gets 3ghash and thats why hes keeping it hush hush
3GH/s still wouldn't be worth the 999 price tag. Tongue
yeah it would.

bfls ingle 820MHASH, for $700
So 30% of the hashrate for 70% of the price and (I'm guessing here) 400% power draw? How is this worth it?
420
hero member
Activity: 756
Merit: 500
October 13, 2012, 08:18:42 PM
#14
Does it get that 1.3Ghash/s?

maybe it gets 3ghash and thats why hes keeping it hush hush
3GH/s still wouldn't be worth the 999 price tag. Tongue

yeah it would.

bfls ingle 820MHASH, for $700
legendary
Activity: 952
Merit: 1000
October 13, 2012, 07:55:47 PM
#13
Does it get that 1.3Ghash/s?

maybe it gets 3ghash and thats why hes keeping it hush hush
3GH/s still wouldn't be worth the 999 price tag. Tongue
420
hero member
Activity: 756
Merit: 500
October 13, 2012, 07:51:24 PM
#12
Does it get that 1.3Ghash/s?

maybe it gets 3ghash and thats why hes keeping it hush hush
hero member
Activity: 816
Merit: 1000
October 02, 2012, 10:50:21 AM
#11
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

Depends on the cost of electricity and resale value.  If it hashes at 1.3 Gh/s and makes 5 USD a day and you can resell it next month for $900, then you made $50.  Assuming your power costs are low.  Would I buy one? No.  Is it cool?  Cool yes.

OR?! Maybe people that are buying it think ASIC is a lie and are hedging their bets on them not actually being released.  /fud
newbie
Activity: 21
Merit: 0
October 02, 2012, 09:29:47 AM
#10
Sexy Card, im still hoping on getting one. Did you have any fitment issues like the techpowerup review ?
It's huge, much bigger than than a reference 7970. Will not fit inside most ATX cases without some elbow grease and a dremel. One more issue (maybe it's system specific) is the inability to tweak the voltage of second gpu. MSI afterburner can tweak voltage of the first Tahiti chip but not the second (/stuck at 1.17V).

My bad, i was meaning fittment issues with the heatsink not contacting GPU's.

Thanks for the pic btw.
420
hero member
Activity: 756
Merit: 500
October 02, 2012, 05:12:28 AM
#9
Sexy Card, im still hoping on getting one. Did you have any fitment issues like the techpowerup review ?
It's huge, much bigger than than a reference 7970. Will not fit inside most ATX cases without some elbow grease and a dremel. One more issue (maybe it's system specific) is the inability to tweak the voltage of second gpu. MSI afterburner can tweak voltage of the first Tahiti chip but not the second (/stuck at 1.17V).

Sent you a bitcent now gimme MHASH!!!!!
legendary
Activity: 1946
Merit: 1006
Bitcoin / Crypto mining Hardware.
October 02, 2012, 04:57:08 AM
#8
Sexy Card, im still hoping on getting one. Did you have any fitment issues like the techpowerup review ?
It's huge, much bigger than than a reference 7970. Will not fit inside most ATX cases without some elbow grease and a dremel. One more issue (maybe it's system specific) is the inability to tweak the voltage of second gpu. MSI afterburner can tweak voltage of the first Tahiti chip but not the second (/stuck at 1.17V).
newbie
Activity: 21
Merit: 0
October 01, 2012, 04:48:22 PM
#7
Sexy Card, im still hoping on getting one. Did you have any fitment issues like the techpowerup review ?
hero member
Activity: 742
Merit: 500
October 01, 2012, 06:39:55 AM
#6
wow that thing looks beastly!
legendary
Activity: 1540
Merit: 1001
October 01, 2012, 05:16:26 AM
#5
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
hero member
Activity: 555
Merit: 504
October 01, 2012, 04:34:29 AM
#4
Mh/s would be great Smiley
420
hero member
Activity: 756
Merit: 500
October 01, 2012, 04:31:06 AM
#3
And the Mhash sir? DO we have to donate to get that number
legendary
Activity: 1946
Merit: 1006
Bitcoin / Crypto mining Hardware.
October 01, 2012, 04:22:03 AM
#2
Another album, with a 7950 for size comparison.

http://imgur.com/a/wMclN

legendary
Activity: 1946
Merit: 1006
Bitcoin / Crypto mining Hardware.
October 01, 2012, 04:20:37 AM
#1
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 http://imgur.com/a/kFqHC#0
Power consumption is ~300W (925MHz E, 777MHz M) for the card. Whole system is 433W.

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