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That's typical

....What I'm running is at the very top of power consumption.
 
Just wanted to share one thing.
As I'm deciding at the moment (more like for a few weeks) which card to keep waiting for the RX580 or Vega 56, I was testing various things among GTX680 and R9 280X (two most supported and "newest", home flashable cards from both camps) and power consumption difference in multi monitor setup is a real shocker.:rolleyes:
These two screenshots were taken while both monitors (1080p Dell and 720p TV) were on and iTunes visualization was working, fullscreen, on 720p TV.
itunes_AMD.png itunes_nvidia.png
 
Just wanted to share one thing.
As I'm deciding at the moment (more like for a few weeks) which card to keep waiting for the RX580 or Vega 56, I was testing various things among GTX680 and R9 280X (two most supported and "newest", home flashable cards from both camps) and power consumption difference in multi monitor setup is a real shocker.:rolleyes:
These two screenshots were taken while both monitors (1080p Dell and 720p TV) were on and iTunes visualization was working, fullscreen, on 720p TV.
View attachment 720654 View attachment 720655
If you can wait until winter the Vega drivers can mature. There are OpenGL texture errors ATM.
 
Just wanted to share one thing.
As I'm deciding at the moment (more like for a few weeks) which card to keep waiting for the RX580 or Vega 56, I was testing various things among GTX680 and R9 280X (two most supported and "newest", home flashable cards from both camps) and power consumption difference in multi monitor setup is a real shocker.:rolleyes:
These two screenshots were taken while both monitors (1080p Dell and 720p TV) were on and iTunes visualization was working, fullscreen, on 720p TV.
View attachment 720654 View attachment 720655

Yeah, for multi monitor setup, the card can't step down to the lowest power setting (low GPU and VRAM clock stage). That will make the card draw lots of power even at "Idle". For your info, 7950 (stock 800/1250Mhz) should idle at about 55W in multi monitor setup (roughly same as your 680)
 
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If you can wait until winter the Vega drivers can mature. There are OpenGL texture errors ATM.
Of course i'm gonna wait. I'm really just doing random things with these GPUs since i'm deciding on which to keep for now and there's no way i'm paying for RX580 more than i would give for GTX980.
Yeah, for multi monitor setup, the card can't step down to the lowest power setting (low GPU and VRAM clock stage). That will make the card draw lots of power even at "Idle". For your info, 7950 (stock 800/1250Mhz) should idle at about 55W in multi monitor setup (roughly same as your 680)
Thanks for that, seems to be that 7950 is much better optimized and not much slower card than 7970 but 7970 has that D700 DevID advantage... Kind of...
 
Of course i'm gonna wait. I'm really just doing random things with these GPUs since i'm deciding on which to keep for now and there's no way i'm paying for RX580 more than i would give for GTX980.

Thanks for that, seems to be that 7950 is much better optimized and not much slower card than 7970 but 7970 has that D700 DevID advantage... Kind of...

I wouldn't worry too much about native driver support. Technically, 7950 has official Mac Edition card, but 7970 does not. Of course we know 7970 has same device as the D700, but almost sure both cards will be supported in the next few years.
 
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I wouldn't worry too much about native driver support. Technically, 7950 has official Mac Edition card, but 7970 does not. Of course we know 7970 has same device as the D700, but almost sure both cards will be supported in the next few years.
You're right, but Apple can leave the GPU unsupported as soon as they ditch 5,1 (they never fixed 7950/70 bug with 3,1 since it wasn't officially supported). 7970 should be supported as long as 6,1 is. On the other hand, they're almost the same card, using the same drivers, so simple kext edit should do the trick in any case.

Most probably gonna sell both when decide what to get next and leave just GT120 since it's the single slot, no PCI-e booster, card...

So sorry to go off topic, just wanted to share dual monitor consumption but the story went on and on...
 
You're right, but Apple can leave the GPU unsupported as soon as they ditch 5,1 (they never fixed 7950/70 bug with 3,1 since it wasn't officially supported). 7970 should be supported as long as 6,1 is. On the other hand, they're almost the same card, using the same drivers, so simple kext edit should do the trick in any case.

Most probably gonna sell both when decide what to get next and leave just GT120 since it's the single slot, no PCI-e booster, card...

So sorry to go off topic, just wanted to share dual monitor consumption but the story went on and on...

Again, technically, the difference is just one year. Latest cMP is 2012 model, latest nMP is 2013 model. If Apple ditch the 5,1 GPU support in 2019, they may ditch the nMP GPU support on 2020. Just one year difference.

And you are right, they share the same driver, as long as the kext is there, it's very easy to add the device ID back in, especially the 7950 can have Mac EFI, always has screen available.
 
i have to warm up that thread...
yesterday, i installed my double hearted cpu daughterboard inside the MP and started to bench this and that.
when i tried the unigine heaven, the computer suddenly shut down after a minute...so i guess its too much for the 980w PS.
i just changed the cpu tray because i afaik, there are always the same PSs inside the mac pro 2009-2012, even it is an dual or single cpu type.

am i wrong ?
 
i have to warm up that thread...
yesterday, i installed my double hearted cpu daughterboard inside the MP and started to bench this and that.
when i tried the unigine heaven, the computer suddenly shut down after a minute...so i guess its too much for the 980w PS.
i just changed the cpu tray because i afaik, there are always the same PSs inside the mac pro 2009-2012, even it is an dual or single cpu type.

am i wrong ?

Seems wrong to me, Unigine is not heavy for CPU. Most likely it’s your way to power the GPU shutdown the Mac. The power draw during Heaven test is nowhere near 980w.

Of course, the shutdown can be because of a bad / dying PSU as well.
 
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the titan black used to get about 370w when it is full loaded...maybe too much.
so better plug the gtx980 back inside ?

370 + dual 130W CPU is just 500W. Nowhere near 980w. The cMP PSU is good enough to drive two 1080Ti internally with Pixlas mod.

And Nvidia said the Titan Black is just a 250W card.

So, how you power the card?
 
the powelink is not load balancing it's just a neat cable hiding thing by the look of it.

h9826790 is saying you need to balance the load over both 6 pin plugs on the macpro mobo as the GPU may be trying to pull to much power from one of the 6 pin cables.

so by combining the two six pin's on to the macpro mobo in to a single 8 pin (at that point the load is shared evenly over both 6 pin ports/lines) then spliting the 8 pin in to two cables the power will be shared smoothly to your GPU

edit
oo looks like im wrong on the EVGA thing then XD need to read more

>.< ops
 
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diging in the very deepest box and found an 2x6 pci-e to 1x8 pci-e...
i bought two sata to molex and plugged into the two from the superdrive bay.
from molex to an usual 6pin pci-e...done.

rockstable again. :)

Ohne Titel.jpeg
 
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