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Topic: Powercolor 7990 - page 4. (Read 14730 times)

hero member
Activity: 896
Merit: 1000
Seal Cub Clubbing Club
June 01, 2012, 12:17:58 PM
#94
Wasn't that ASUS 5870x2 like $900+?  I'd expect a 7970x2 to be somewhere in that area, if not higher.

Edit: Ouch, they were $1100 from NewEgg.
member
Activity: 66
Merit: 10
June 01, 2012, 09:52:06 AM
#93
I don't think a price has been released yet for the 7970 X2. Considering its size and the amount of energy it will chug, I would think of buying one if a waterblock and more narrower rear IO bracket was released.

I am wondering if it is worth buying a dual Radeon 79xx card now or wait another 6 to 7 months for the second generation of GCN.
legendary
Activity: 924
Merit: 1000
Think. Positive. Thoughts.
June 01, 2012, 09:38:47 AM
#92
Any word on final price of the 7970x2? This would be an important measure of the value to miners... i.e. if there is a price-break between this and 2 individual 7970s, it would mean a much better Hash/$ rate.
hero member
Activity: 658
Merit: 500
June 01, 2012, 08:32:49 AM
#91
Can anyone just post a quick comparison of the hash rates of a 6990 vs 7990?

If you assumed no over clock and full 7970 speeds it would get about 1100 mhash. There's very little chance of it overclocking near where a single 7970 can go, to 1200mhz or more. It's going to be a very toasty card.  If you could get to 1200/1200 it would get about 1400mhash.

A 6990 stock gets around 700 mhash. 800 with overclocking.
legendary
Activity: 1274
Merit: 1004
May 31, 2012, 09:16:21 PM
#90
Can anyone just post a quick comparison of the hash rates of a 6990 vs 7990?
Since it hasn't been released and we don't know the clocks, no.
member
Activity: 93
Merit: 10
May 31, 2012, 07:37:13 PM
#89
Can anyone just post a quick comparison of the hash rates of a 6990 vs 7990?
legendary
Activity: 1876
Merit: 1000
May 31, 2012, 10:41:47 AM
#88

after re-reading crazyates post, i think he was being sarcastic...  missed that.  i'm gettin old.


404 HW errors...  dont usually get them, but they happen on linux too.  this is out of 350k A shares, so no big deal. 
legendary
Activity: 1666
Merit: 1000
May 31, 2012, 10:29:43 AM
#87
404 HW errors?!?

Yikes  Embarrassed

Too bad you can't undervolt in linux  Angry
legendary
Activity: 1876
Merit: 1000
May 31, 2012, 08:00:13 AM
#86


Expensive? Hell ya! Inefficient? It's probably just as "inefficient" as 2 7970s, which is gonna be what, 1100MH/s @ 250W?

EDIT: I'm assuming undervolted, with stock core and downclocked ram.

7970 are NOT inefficient..

this rig pulls 830watts at the wall

Code:
cgminer version 2.3.6 - Started: [May 24, 2012, 9:46 pm]    Rig:miner19
(5s):2767.69  (avg): 2754.53 Mh/s  |    H: 83.8  Q:171983   A:351349   R:1624   HW:404   E:?%   U:38.01/m
TQ:?   ST:560   SS:?   DW:19557   NB:901   LW:812647   GF:107   RF:196
Connected to http://gpumax.com:8332 with LP as user ?
Value:
GPU 0: 74.0C 2290RPM 39% 113 | 554.5/551.0Mh/s | 99% | 930Mhz 800Mhz 1.17V A:70935 R:252 HW:0 U:7.67/m I: 9
GPU 1: 64.0C 1035RPM 0% 64 | 553.2/551.1Mh/s | 99% | 930Mhz 800Mhz 1.17V A:70099 R:253 HW:0 U:7.58/m I: 9
GPU 2: 73.0C 1072RPM 1% 74 | 553.1/551.0Mh/s | 99% | 930Mhz 800Mhz 1.17V A:68123 R:632 HW:404 U:7.37/m I: 9
GPU 3: 65.0C 1049RPM 0% 65 | 553.4/550.5Mh/s | 99% | 930Mhz 800Mhz 1.17V A:71125 R:238 HW:0 U:7.69/m I: 9
GPU 4: 73.0C 1170RPM 30% 103 | 553.6/551.0Mh/s | 99% | 930Mhz 800Mhz 1.17V A:71067 R:249 HW:0 U:7.69/m I: 9
rjk
sr. member
Activity: 448
Merit: 250
1ngldh
May 30, 2012, 01:21:20 PM
#85

I do not like the fact that it will need 3 of the precious PCI cables....

I do not like to use molex connectors.  much less having 4 sets of molex adapters on one rig if you want to run 4x7990

LOL I doubt you will be mining with this one. It is likely to be extremely inefficient and way too expensive.
7990 should be alright though.

Expensive? Hell ya! Inefficient? It's probably just as "inefficient" as 2 7970s, which is gonna be what, 1100MH/s @ 250W?
Yeah I suppose so, although if heat isn't managed well enough, efficiency could be affected. This 28nm stuff sucks down major power when it gets too hot.
legendary
Activity: 952
Merit: 1000
May 30, 2012, 01:19:32 PM
#84

I do not like the fact that it will need 3 of the precious PCI cables....

I do not like to use molex connectors.  much less having 4 sets of molex adapters on one rig if you want to run 4x7990

LOL I doubt you will be mining with this one. It is likely to be extremely inefficient and way too expensive.
7990 should be alright though.

Expensive? Hell ya! Inefficient? It's probably just as "inefficient" as 2 7970s, which is gonna be what, 1100MH/s @ 250W?

EDIT: I'm assuming undervolted, with stock core and downclocked ram.
rjk
sr. member
Activity: 448
Merit: 250
1ngldh
May 30, 2012, 01:14:10 PM
#83

I do not like the fact that it will need 3 of the precious PCI cables....

I do not like to use molex connectors.  much less having 4 sets of molex adapters on one rig if you want to run 4x7990

LOL I doubt you will be mining with this one. It is likely to be extremely inefficient and way too expensive.
7990 should be alright though.
legendary
Activity: 1876
Merit: 1000
May 30, 2012, 01:01:54 PM
#82

I do not like the fact that it will need 3 of the precious PCI cables....

I do not like to use molex connectors.  much less having 4 sets of molex adapters on one rig if you want to run 4x7990
full member
Activity: 182
Merit: 100
roundhouseminer
May 29, 2012, 04:57:54 PM
#81
I think the 7990 will came with only two pcie Connectors. AMD alway goes the secure way.
The release dato is unknown anyway, so Powercolor launch this for computex.

So the 7990 will only have 2x8pins for < 375W, and this will be faster clocked but have 3x8pins for ~525W?
AMD keeps always lower frequenzies on the Dual GPU cards, so they pass the ATX Form without stress.
Just look at Asus Ares, launched with full 5870 specs.
legendary
Activity: 952
Merit: 1000
May 29, 2012, 04:54:18 PM
#80
I think the 7990 will came with only two pcie Connectors. AMD alway goes the secure way.
The release dato is unknown anyway, so Powercolor launch this for computex.

So the 7990 will only have 2x8pins for < 375W, and this will be faster clocked but have 3x8pins for ~525W?
full member
Activity: 182
Merit: 100
roundhouseminer
May 29, 2012, 04:44:11 PM
#79
I think the 7990 will came with only two pcie Connectors. AMD alway goes the secure way.
The release dato is unknown anyway, so Powercolor launch this for computex.
legendary
Activity: 952
Merit: 1000
May 29, 2012, 12:14:50 AM
#78





The 7970 x2

Yes you see right, 3x 8 Pin Connectors.  Shocked

0_0 so when is this (or the 7990) coming out? I want....
full member
Activity: 126
Merit: 100
May 28, 2012, 11:59:06 PM
#77
Previous Devil cards have the same red button.

If you push the little red button, it switches to secondary bios (Wish it was a red button like this http://www.youtube.com/watch?v=5unKNLcj8P8).
rjk
sr. member
Activity: 448
Merit: 250
1ngldh
May 28, 2012, 06:55:56 PM
#76
It even comes with a little red button. What happens if you press the little red button?   Shocked

A dyed in the wool killer would have asked about the little red button...
It looks less like a button and more like an indicator light, to me anyways. The high-res pics show it looking slightly translucent.
newbie
Activity: 22
Merit: 0
May 28, 2012, 06:30:46 PM
#75
It even comes with a little red button. What happens if you press the little red button?   Shocked

A dyed in the wool killer would have asked about the little red button...
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