Comparison of current GPUs PPD/watt and PPD/price

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foldy
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Comparison of current GPUs PPD/watt and PPD/price

Post by foldy »

Comparison of current GPUs PPD/watt and PPD/price
https://docs.google.com/spreadsheets/d/ ... Ek/pubhtml
Last edited by foldy on Sun Jan 27, 2019 8:47 am, edited 1 time in total.
bruce
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Re: Comparison of current GPUs PPD/watt and PPD/price

Post by bruce »

Suggestion: Something like this would be useful:

New (editable) constant: My Power Cost in $/KWH
Calculate a new column: Months to amortize initial cost
foldy
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Re: Nvidia Pascal GPU cards???

Post by foldy »

The formula would be e.g. for a gtx 1070 compared to a gtx 980Ti which have nearly same PPD
gtx 1070 Power usage = 150 watt
gtx 980Ti Power usage = 250 watt

Power usage saved with gtx 1070 compared to gtx 980Ti = 100 watt = 0.1 kw
Power usage saved in a year = 0.1 kw * 24h *356 days = 855 kwh/yr
Power cost = $0.12/kwh
Power cost for 855 kwh = $0.12/kwh * 855 kwh/yr = $103 per year

gtx 1070 Initial cost = $400
gtx 980Ti sell for $300 on ebay.
Remaining cost $400 - $300 = $100

Remaining cost / Power cost savings per year = $100 / $103 per year = 1 year

So it takes 1 year to amortize the initial cost of a gtx 1070 when selling an existing gtx 980Ti.
After the first year you save $103 every year.
rwh202
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Re: Nvidia Pascal GPU cards???

Post by rwh202 »

foldy wrote:The formula would be e.g. for a gtx 1070 compared to a gtx 980Ti which have nearly same PPD
gtx 1070 Power usage = 150 watt
gtx 980Ti Power usage = 250 watt

Power usage saved with gtx 1070 compared to gtx 980Ti = 100 watt = 0.1 kwh
Power usage saved in a year = 0.1 kwh * 24h *356 days = 855 kwh
Power cost = $0.12/kwh
Power cost for 855 kwh = $0.12/kwh * 855 kwh = $103 per year

gtx 1070 Initial cost = $400
gtx 980Ti sell for $300 on ebay.
Remaining cost $400 - $300 = $100

Remaining cost / Power cost savings per year = $100 / $103 per year = 1 year

So it takes 1 year to amortize the initial cost of a gtx 1070 when selling an existing gtx 980Ti.
After the first year you save $103 every year.
Nicely done! Also worth noting that where this power cost is representative (which it seems to be in many places), then it nicely rounds to 1 Watt (year) = $1 per year which is a useful shorthand for quickly evaluating the savings from more efficient hardware etc.

I've done many spreadsheets of my own with similar calculations - useful to show the GF that spending £5000 on GTX1080s actually saves money...
MARSTG
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Re: Nvidia Pascal GPU cards???

Post by MARSTG »

Yes, but that is because you cannot predict the value of QRB. Can you please add the rx series of the list?
k1wi
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Re: Comparison of current GPUs PPD/watt and PPD/price

Post by k1wi »

What would be amazing is a calculator that takes into account the price of the card, performance/watt, the price of electricity and the expected lifetime of the card.

It could also show the relative break even period for different cards, and the total expected cost [upfront plus running costs] over x years (and allow you to 'budget' accordingly).

Some of the ppd values seem to be out from the source db? I'm not sure how accurate TDP is? I've seen numbers about that make the 1070 king for ppd/watt... But minor quibbles as I've seen your disclaimer at the bottom :)
Nert
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Re: Comparison of current GPUs PPD/watt and PPD/price

Post by Nert »

Very good information. This will come in very handy when I upgrade the video cards in my systems.

Thanks !
Image
rhavern
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Re: Comparison of current GPUs PPD/watt and PPD/price

Post by rhavern »

I too do a similar thing but instead of using PPD, which varies greatly between WU, I use the numbers from FAHbench as they are not dependent on per project benchmarking. Typically the Explicit/1 numbers are the most relevant, so I build a table of Exp1/<unit of currency> and Exp1/watt, then add some conditional formating color scales to guide the eye. I also look for actual test results to get measured watts used instead of claimed, although I track both numbers out of interest.

Edit by Mod:
Removed URL as it pointed to information that was blocked.
Folding since 1 WU=1 point
ImageImage
Aurum
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Re: Comparison of current GPUs PPD/watt and PPD/price

Post by Aurum »

rhavern wrote:I too do a similar thing but instead of using PPD, which varies greatly between WU, I use the numbers from FAHbench as they are not dependent on per project benchmarking. Typically the Explicit/1 numbers are the most relevant, so I build a table of Exp1/<unit of currency> and Exp1/watt, then add some conditional formating color scales to guide the eye. I also look for actual test results to get measured watts used instead of claimed, although I track both numbers out of interest.
Sorry I missed this post before. I cannot see the image. Is there an updated edition?

Edit by Mod:
Removed URL as it pointed to information that was blocked.
In Science We Trust Image
dreiter
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Re: Comparison of current GPUs PPD/watt and PPD/price

Post by dreiter »

Hi foldy,

Just for an update, the 1080 is down to $499 MSRP now. This should bump it's PPD/price up to 1.7, which is tied for the highest PPD/price. It's definitely looking like a much better 'value' proposition for folding now.
Aurum
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Re: Comparison of current GPUs PPD/watt and PPD/price

Post by Aurum »

dreiter wrote:Hi foldy,

Just for an update, the 1080 is down to $499 MSRP now. This should bump it's PPD/price up to 1.7, which is tied for the highest PPD/price. It's definitely looking like a much better 'value' proposition for folding now.
That's assuming a 1080 averages 860,000 PPD.
I just bought a couple of EVGA 1070s for $335 each and they at 2.1 PPD/price. Still the sweet spot.
In Science We Trust Image
dreiter
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Re: Comparison of current GPUs PPD/watt and PPD/price

Post by dreiter »

Aurum wrote:
dreiter wrote:Hi foldy,

Just for an update, the 1080 is down to $499 MSRP now. This should bump it's PPD/price up to 1.7, which is tied for the highest PPD/price. It's definitely looking like a much better 'value' proposition for folding now.
That's assuming a 1080 averages 860,000 PPD.
I just bought a couple of EVGA 1070s for $335 each and they at 2.1 PPD/price. Still the sweet spot.
Lucky you! $335 is significantly below MSRP for those cards right now. I have been checking around but haven't found anything used under $380 yet.
leggazoid
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Re: Comparison of current GPUs PPD/watt and PPD/price

Post by leggazoid »

Has anyone tested a GTX 1070 Ti for PPD?
leggazoid
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Re: Comparison of current GPUs PPD/watt and PPD/price

Post by leggazoid »

I saw where a volta was getting 1600k PPD and that seemed kinda low to me.
Not the 30% I was hoping for compared to pascal at 1400k PPD.
foldinghomealone2
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Re: Comparison of current GPUs PPD/watt and PPD/price

Post by foldinghomealone2 »

leggazoid wrote:...Not the 30% I was hoping for compared to pascal at 1400k PPD.
Which pascal makes 1400k PPD currently in average?

My 1080 Ti dropped from 1250k PPD (September) to just above 1000k PPD currently, because of different projects/WU I get.
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