Dual GTX 1080's

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Hamltnblue
Posts: 11
Joined: Sat Oct 04, 2008 2:06 pm

Dual GTX 1080's

Post by Hamltnblue »

Hello
Has anyone here tried running dual GTX 1080's?
If so what PPD does it get?
Also do you run SLI or just run two individual boards?
Thanks
Nathan_P
Posts: 1180
Joined: Wed Apr 01, 2009 9:22 pm
Hardware configuration: Asus Z8NA D6C, 2 x5670@3.2 Ghz, , 12gb Ram, GTX 980ti, AX650 PSU, win 10 (daily use)

Asus Z87 WS, Xeon E3-1230L v3, 8gb ram, KFA GTX 1080, EVGA 750ti , AX760 PSU, Mint 18.2 OS

Not currently folding
Asus Z9PE- D8 WS, 2 E5-2665@2.3 Ghz, 16Gb 1.35v Ram, Ubuntu (Fold only)
Asus Z9PA, 2 Ivy 12 core, 16gb Ram, H folding appliance (fold only)
Location: Jersey, Channel islands

Re: Dual GTX 1080's

Post by Nathan_P »

Hi

Running dual 1080's is not a problem - its high end due to the cost of the cards but has been done frequently. you just need plenty of cooling and a decent power supply.
You need to run it as 2 individual cards. PPD is around 800k per cards.
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rwh202
Posts: 425
Joined: Mon Nov 15, 2010 8:51 pm
Hardware configuration: 8x GTX 1080
3x GTX 1080 Ti
3x GTX 1060
Various other bits and pieces
Location: South Coast, UK

Re: Dual GTX 1080's

Post by rwh202 »

Nathan_P wrote:Hi

Running dual 1080's is not a problem - its high end due to the cost of the cards but has been done frequently. you just need plenty of cooling and a decent power supply.
You need to run it as 2 individual cards. PPD is around 800k per cards.
Yep, 4 dual 1080 rigs here and that's correct.
However, power and cooling aren't too onerous - a decent 650 W PSU is probably the minimum and a mid tower case with a couple of quiet intakes and exhaust fans work well enough for me.
Hamltnblue
Posts: 11
Joined: Sat Oct 04, 2008 2:06 pm

Re: Dual GTX 1080's

Post by Hamltnblue »

Thanks
I've been running a 7770k with a 1080 on an 860watt PS.
With the 10890ti out now the 1080 cards have come down 100+ dollars.
Contemplating adding another card.
Nathan_P
Posts: 1180
Joined: Wed Apr 01, 2009 9:22 pm
Hardware configuration: Asus Z8NA D6C, 2 x5670@3.2 Ghz, , 12gb Ram, GTX 980ti, AX650 PSU, win 10 (daily use)

Asus Z87 WS, Xeon E3-1230L v3, 8gb ram, KFA GTX 1080, EVGA 750ti , AX760 PSU, Mint 18.2 OS

Not currently folding
Asus Z9PE- D8 WS, 2 E5-2665@2.3 Ghz, 16Gb 1.35v Ram, Ubuntu (Fold only)
Asus Z9PA, 2 Ivy 12 core, 16gb Ram, H folding appliance (fold only)
Location: Jersey, Channel islands

Re: Dual GTX 1080's

Post by Nathan_P »

Hamltnblue wrote:Thanks
I've been running a 7770k with a 1080 on an 860watt PS.
With the 10890ti out now the 1080 cards have come down 100+ dollars.
Contemplating adding another card.
You're not the only one, i'm just debating whether to go 1070/1080 or 1080Ti
Image
foldy
Posts: 2061
Joined: Sat Dec 01, 2012 3:43 pm
Hardware configuration: Folding@Home Client 7.6.13 (1 GPU slots)
Windows 7 64bit
Intel Core i5 2500k@4Ghz
Nvidia gtx 1080ti driver 441

Re: Dual GTX 1080's

Post by foldy »

Nathan_P wrote:You're not the only one, i'm just debating whether to go 1070/1080 or 1080Ti
@Nathan_P: You have limited number of GPU slots and PPD/price/watt scales good with these GPUs.
If you have the money isn't going for the fastest GPU the best option?
Nathan_P
Posts: 1180
Joined: Wed Apr 01, 2009 9:22 pm
Hardware configuration: Asus Z8NA D6C, 2 x5670@3.2 Ghz, , 12gb Ram, GTX 980ti, AX650 PSU, win 10 (daily use)

Asus Z87 WS, Xeon E3-1230L v3, 8gb ram, KFA GTX 1080, EVGA 750ti , AX760 PSU, Mint 18.2 OS

Not currently folding
Asus Z9PE- D8 WS, 2 E5-2665@2.3 Ghz, 16Gb 1.35v Ram, Ubuntu (Fold only)
Asus Z9PA, 2 Ivy 12 core, 16gb Ram, H folding appliance (fold only)
Location: Jersey, Channel islands

Re: Dual GTX 1080's

Post by Nathan_P »

foldy wrote:
Nathan_P wrote:You're not the only one, i'm just debating whether to go 1070/1080 or 1080Ti
@Nathan_P: You have limited number of GPU slots and PPD/price/watt scales good with these GPUs.
If you have the money isn't going for the fastest GPU the best option?
It is, but sometimes its the initial hardware outlay that's the issue, not the running costs.

PCIe x16 slots are not a problem, I have 13 available for folding :D
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foldy
Posts: 2061
Joined: Sat Dec 01, 2012 3:43 pm
Hardware configuration: Folding@Home Client 7.6.13 (1 GPU slots)
Windows 7 64bit
Intel Core i5 2500k@4Ghz
Nvidia gtx 1080ti driver 441

Re: Dual GTX 1080's

Post by foldy »

@Hamltnblue: If you also want to game with dual gtx 1080 then you can leave SLI activated. But it is still 2 individual slots in FAH.
boristsybin
Posts: 50
Joined: Mon Jan 16, 2017 11:40 am
Hardware configuration: 4x1080Ti + 2x1050Ti
Location: Russia, Moscow

Re: Dual GTX 1080's

Post by boristsybin »

1080ti is the king of money/ppd for now

dual 1080ti system (as any dual-gpu) is easy to build with nonexpensive "mainstream" psu+cpu+board platform with no ppd lost
Last edited by boristsybin on Sat Mar 11, 2017 12:15 pm, edited 1 time in total.
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Nathan_P
Posts: 1180
Joined: Wed Apr 01, 2009 9:22 pm
Hardware configuration: Asus Z8NA D6C, 2 x5670@3.2 Ghz, , 12gb Ram, GTX 980ti, AX650 PSU, win 10 (daily use)

Asus Z87 WS, Xeon E3-1230L v3, 8gb ram, KFA GTX 1080, EVGA 750ti , AX760 PSU, Mint 18.2 OS

Not currently folding
Asus Z9PE- D8 WS, 2 E5-2665@2.3 Ghz, 16Gb 1.35v Ram, Ubuntu (Fold only)
Asus Z9PA, 2 Ivy 12 core, 16gb Ram, H folding appliance (fold only)
Location: Jersey, Channel islands

Re: Dual GTX 1080's

Post by Nathan_P »

boristsybin wrote:1080ti is the king of money/ppd for now

dual 1080ti system (as any dual-gpu) is easy to build with nonexpensive psu+cpu+board platform with no ppd lost
You will need a decent PSU, even if its only 700-750watts, so that's £80-£90 before you start, a decent mobo with 2 PCIe 3.0 x16 slots running at x8 as a minimum, the bill soon starts adding up
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boristsybin
Posts: 50
Joined: Mon Jan 16, 2017 11:40 am
Hardware configuration: 4x1080Ti + 2x1050Ti
Location: Russia, Moscow

Re: Dual GTX 1080's

Post by boristsybin »

Nathan_P wrote:You will need a decent PSU, even if its only 700-750watts, so that's £80-£90 before you start, a decent mobo with 2 PCIe 3.0 x16 slots running at x8 as a minimum, the bill soon starts adding up
anyway, single "dual-1080ti system" is cheaper, simplier and smaller than two "dual-1070" or single "quarple-1070" or single "triple-1080" while producing similar ppd

same for comparison of "single-1080ti system" with "dual-1070 system"
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Hamltnblue
Posts: 11
Joined: Sat Oct 04, 2008 2:06 pm

Re: Dual GTX 1080's

Post by Hamltnblue »

foldy wrote:@Hamltnblue: If you also want to game with dual gtx 1080 then you can leave SLI activated. But it is still 2 individual slots in FAH.
Thanks
SteveWillis
Posts: 409
Joined: Fri Apr 15, 2016 12:42 am
Hardware configuration: PC 1:
Linux Mint 17.3
three gtx 1080 GPUs One on a powered header
Motherboard = [MB-AM3-AS-SB-990FXR2] qty 1 Asus Sabertooth 990FX(+59.99)
CPU = [CPU-AM3-FX-8320BR] qty 1 AMD FX 8320 Eight Core 3.5GHz(+41.99)

PC2:
Linux Mint 18
Open air case
Motherboard: ASUS Crosshair V Formula-Z AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX AMD
AMD FD6300WMHKBOX FX-6300 6-Core Processor Black Edition with Cooler Master Hyper 212 EVO - CPU Cooler with 120mm PWM Fan
three gtx 1080,
one gtx 1080 TI on a powered header

Re: Dual GTX 1080's

Post by SteveWillis »

I'm running three 1080s, a 960 and a 750ti on my folding rig. 1000 watt psu and have about 100 watts headroom.
Image

1080 and 1080TI GPUs on Linux Mint
ComputerGenie
Posts: 236
Joined: Mon Dec 12, 2016 4:06 am

Re: Dual GTX 1080's

Post by ComputerGenie »

SteveWillis wrote:I'm running three 1080s, a 960 and a 750ti on my folding rig. 1000 watt psu and have about 100 watts headroom.
What MB are you using for that setup?
SteveWillis
Posts: 409
Joined: Fri Apr 15, 2016 12:42 am
Hardware configuration: PC 1:
Linux Mint 17.3
three gtx 1080 GPUs One on a powered header
Motherboard = [MB-AM3-AS-SB-990FXR2] qty 1 Asus Sabertooth 990FX(+59.99)
CPU = [CPU-AM3-FX-8320BR] qty 1 AMD FX 8320 Eight Core 3.5GHz(+41.99)

PC2:
Linux Mint 18
Open air case
Motherboard: ASUS Crosshair V Formula-Z AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX AMD
AMD FD6300WMHKBOX FX-6300 6-Core Processor Black Edition with Cooler Master Hyper 212 EVO - CPU Cooler with 120mm PWM Fan
three gtx 1080,
one gtx 1080 TI on a powered header

Re: Dual GTX 1080's

Post by SteveWillis »

ASUS Crosshair V Formula-Z AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard
Not sure of my PPD on that rig. That rig and another two 1080s gives me just under 4M daily
Image

1080 and 1080TI GPUs on Linux Mint
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