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Old 2020-08-19, 20:24   #23
Cheetahgod
 
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There are some rumors that the rtx 3090 ti/super will start at $1400 and the founders edition will be $1500.
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Old 2020-08-19, 22:30   #24
jwnutter
 
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Quote:
Originally Posted by ewmayer View Post
@jwnutter: Around 1.5kW
Wow! So that's gotta be about all a 15A - 120V circuit can manage. Impressive!
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Old 2020-08-19, 22:39   #25
chalsall
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Quote:
Originally Posted by jwnutter View Post
Wow! So that's gotta be about all a 15A - 120V circuit can manage. Impressive!
Well, since W=V*A, (ignoring losses, and RMS when dealing with AC) approximately.

The question about if it's impressive is somewhat different...
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Old 2020-08-19, 22:59   #26
ewmayer
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Quote:
Originally Posted by jwnutter View Post
Wow! So that's gotta be about all a 15A - 120V circuit can manage. Impressive!
In fact, I recently had to reroute the power cord to the desktop unit for precisely this reason - see the wall behind the desk & monitor in the pic? On the other side of that wall is the kitchen, and all the outlets there share the same 20A circuit as the dining room, whose corner the desk occupies - far right of the pic is the living room sofa, LR and DR form a large open 'L'. So as soon as I had > 1 GPU in the desktop unit up and running, every time someone turned on the eletric teakettle or the toaster (both short-run but high-draw appliances) plugged into the kitchen side of the shared wall, we'd trip the breaker. So last month I bought a roll of this stuff and cut an 8-foot piece to house an extension cord dedicated for the desktop unit - it could handle both PCs but I figured why risk overloading the 15A breaker in question? - more or less parallel to the wooden foot of the desk in the pic to the opposite wall, where it plugs into an outlet just on the living room side of the wall shared by the LR and DR.

Also, during the recent (now in Day 8 here) SW heat wave I've been shutting the desktop unit off during the afternoons - it's actually impressive that the combination of open design and 3m-high ceilings in this place allow me to run that kind of 24/7 wattage during the summer months without turning the place into a sauna, but days like recent ones, when the sun hits that aforementioned shared LR/DR wall, which is west-facing, the compute and AC draws become additive. It's gonna be great come winter, though - world's most interesting space heater helping keep the place comfy. :)

Last fiddled with by ewmayer on 2020-08-19 at 23:02
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Old 2020-08-19, 23:05   #27
jwnutter
 
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In fact, I recently had to reroute the power cord to the desktop unit for precisely this reason
This sounds like true dedication.
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Old 2020-08-20, 01:09   #28
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…it's actually impressive that the combination of open design and 3m-high ceilings in this place allow me to run that kind of 24/7 wattage during the summer months without turning the place into a sauna…
Our study gets uncomfortably warm when we exceed 300W even with the ceiling fan on max. (But we keep the A/C at 80F so our house is warmer than most.)

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Old 2020-08-20, 03:00   #29
PhilF
 
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Quote:
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This sounds like true dedication.
It is either dedication or insanity. The jury is still out on that.
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Old 2020-08-20, 09:22   #30
M344587487
 
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Quote:
Originally Posted by ewmayer View Post
In fact, I recently had to reroute the power cord to the desktop unit for precisely this reason - see the wall behind the desk & monitor in the pic? On the other side of that wall is the kitchen, and all the outlets there share the same 20A circuit as the dining room, whose corner the desk occupies - far right of the pic is the living room sofa, LR and DR form a large open 'L'. So as soon as I had > 1 GPU in the desktop unit up and running, every time someone turned on the eletric teakettle or the toaster (both short-run but high-draw appliances) plugged into the kitchen side of the shared wall, we'd trip the breaker. So last month I bought a roll of this stuff and cut an 8-foot piece to house an extension cord dedicated for the desktop unit - it could handle both PCs but I figured why risk overloading the 15A breaker in question? - more or less parallel to the wooden foot of the desk in the pic to the opposite wall, where it plugs into an outlet just on the living room side of the wall shared by the LR and DR.

Also, during the recent (now in Day 8 here) SW heat wave I've been shutting the desktop unit off during the afternoons - it's actually impressive that the combination of open design and 3m-high ceilings in this place allow me to run that kind of 24/7 wattage during the summer months without turning the place into a sauna, but days like recent ones, when the sun hits that aforementioned shared LR/DR wall, which is west-facing, the compute and AC draws become additive. It's gonna be great come winter, though - world's most interesting space heater helping keep the place comfy. :)
Say what you want about the weirdness of some of the UK's electrical conventions, the less said about ring mains the better, but at least we got the design of a circuit right in that we can make a cup of tea at a reasonable speed ;)
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Old 2020-08-20, 20:21   #31
ewmayer
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Quote:
Originally Posted by PhilF View Post
It is either dedication or insanity. The jury is still out on that.
Need not be an either-or ... might be "insane dedication". :)

I expect the fact that this year has been the weirdest in like, ever, for many folks may have lots of us doing things we would've never considered in normal times. In my case, first few months after the early-pandemic lockdowns I felt an urge to build things, not intangible bits-and-bytes-things like normally occupy me, but tangible things. First a new custom-built pine shelving storage unit for the kitchen/entryway area, then on to "hey, that R7 I bought early in the year is frickin' awesome ... I wonder if I could build a multi-GPU system for a reasonable total cost?" In the case of the supercruncher and Haswell-system upgrades, those are tangible things that are seriously good at doing interesting things with bits and bytes - best of both worlds!

But now need to just let the hardware run, and return focus to code upgrades for the rest of the year.
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Old 2020-08-20, 20:41   #32
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Do someone have a plan of the OpenCl Performance of this marvel of technology called RTX 3090? I would be pleasantly surprised if this would be at least 2.00 ms/it for fft 5.50M

Last fiddled with by moebius on 2020-08-20 at 20:43
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Old 2020-08-20, 22:09   #33
Prime95
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Do someone have a plan of the OpenCl Performance of this marvel of technology called RTX 3090? I would be pleasantly surprised if this would be at least 2.00 ms/it for fft 5.50M
At the rumored price, the Radeon VII Pro may be more appealing.
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