Ethereum GPU mining?

Page 151 - Seeking answers? Join the AnandTech community: where nearly half-a-million members share solutions and discuss the latest tech.

Head1985

Golden Member
Jul 8, 2014
1,866
699
136
why bitcoin cost 500USD more than yesterday?It will drive again all other coins up OMFG.This mining craze will really never end.
 

casiofx

Senior member
Mar 24, 2015
369
36
61

Yakk

Golden Member
May 28, 2016
1,574
275
81
why bitcoin cost 500USD more than yesterday?It will drive again all other coins up OMFG.This mining craze will really never end.

There's a lot of pentup demand for Bitcoin which was on hold until the fork. Many analysts have a $5,000 target for BTC. Expect the other coins to follow suit proportionally.
 

Head1985

Golden Member
Jul 8, 2014
1,866
699
136
There's a lot of pentup demand for Bitcoin which was on hold until the fork. Many analysts have a $5,000 target for BTC. Expect the other coins to follow suit proportionally.
So pretty much another mining mega craze on top of already super big mining craze?We will probably wont be abble buy GPU for MSRP next year or so?
 

Konan

Senior member
Jul 28, 2017
360
291
106
https://www.reddit.com/r/Amd/comments/6rm0cs/vega64_mining_is_unlikely_to_exceed_65_mhs/?sort=new

Professional mining software developer here.
Ethash (the proof-of-work used in Ethereum) is memory bandwidth bound.

1 Ethash requires 8KB of memory bandwidth, 1 MH requires ~7.8 GB of memory bandwidth (1000000*8KB/1048576 ~= 7.8GB).
Vega56 has ~409.6 GB/s; 409.6/7.8 ~= 52.5 MH/s
Vega64 has ~483.8 GB/s; 483.8/7.8 ~= 63.4 MH/s

Both versions use SKHynix's HBM2 memory, which is a 1.6Gbps part @ 1.2volts (SKHynix's Q2'17 Databook). This is the memory speed in Vega56. The Vega64 runs the same part @ 1.89Gbps meaning it is factory overclocked and unlikely to go faster.
Tldr: Peak Ethash performance unlikely to exceed 65 MH/s on Vega64 and 55 MH/s on stock Vega56.
 
Last edited:

Yakk

Golden Member
May 28, 2016
1,574
275
81
So pretty much another mining mega craze on top of already super big mining craze?We will probably wont be abble buy GPU for MSRP next year or so?

For BTC itself it has nothing to do with mining Imo. But it encourages all the alt coins to go up also. If Vega performance is what is rumored (raw bandwidth as noted above + new hardware instruction set combining operations in hardware) , aside from preorders I would very much doubt Vega GPUs will be easy to get and AMD will be selling them globally as fast as they can make them. On the flip side Polaris & nvidia gpu demand should fall off as difficulty will also skyrocket in short order with Vega performance jump.
 

Head1985

Golden Member
Jul 8, 2014
1,866
699
136
Yeah this is like worst nightmare ever.One mining craze to another(probably even worse).Ethereum is up 20% from yesterday.I wonder if ends up at 400usd..
 

DrMrLordX

Lifer
Apr 27, 2000
21,805
11,158
136
So BTC goes, goes the rest of the crypto world. Though it looks like ZEC and ETH are finally divorced from one another.
 

IntelUser2000

Elite Member
Oct 14, 2003
8,686
3,785
136

It will likely be worse.

RX 480 8GB with Samsung memory at stock gets 24MH/s. That's 8GT/s memory with 256GB/s theoretical bandwidth. 24MH/s = 192GB/s, or 75% efficiency. There was a discussion of maximum achievable performance with Ethereum and said 85-90% would be a realistic figure. 100% doesn't exist in reality.

Not only that, Vega FE has serious problems achieving anywhere near the theoretical bandwidth in actual tests: http://www.pcgameshardware.de/Vega-...elease-AMD-Radeon-Frontier-Edition-1232684/3/

If the bandwidth in Ethereum is 400GB/s, 85% efficiency would mean 40MH/s.
 

ozzy702

Golden Member
Nov 1, 2011
1,151
530
136
It will likely be worse.

RX 480 8GB with Samsung memory at stock gets 24MH/s. That's 8GT/s memory with 256GB/s theoretical bandwidth. 24MH/s = 192GB/s, or 75% efficiency. There was a discussion of maximum achievable performance with Ethereum and said 85-90% would be a realistic figure. 100% doesn't exist in reality.

Not only that, Vega FE has serious problems achieving anywhere near the theoretical bandwidth in actual tests: http://www.pcgameshardware.de/Vega-...elease-AMD-Radeon-Frontier-Edition-1232684/3/

If the bandwidth in Ethereum is 400GB/s, 85% efficiency would mean 40MH/s.

40MH/s is nowhere near enough to consider replacing my 1070s. They're so efficient and I picked them up before everyone hopped on the mining bandwagon so they were half the price of Vega.
 

thecoolnessrune

Diamond Member
Jun 8, 2005
9,673
580
126

Even if it is real it is only 200Mh for $3500? Lol you can build a gpu rig with those hashrate at less than $2000(maybe)? Not to mention if vega claimed 70-100Mh/s is true or volta geforce launched (around 60Mh/s), the only one going to profit is the shovel's seller lol.

Not to mention ethereum mining can be counted in months left.

It's real but it's not an ASIC. If you look closely at the pictures on the page, you'll see a photo with a glimpse of the board. If you rotate it 180 degrees you'll see it says "Designed by Starminer" and GPU Switch 1.2. It's a variant of the Panda Miner, which takes AMD Embedded E9550 GPUs in MXM form factor. They're RX 480 equivalent GPUs in a 95 Watt thermal envelope. At roughly 24MH/s for an RX 480, times 8 GPUs in the enclosure, you get 192MH/s, which is why they advertise it as a 200Mh/s box.

With RX 480s still above $300 a GPU, you're probably going to spend no less than $2,500 on the GPUs alone if you go the used route, probably closer to $3,200 if you're going new. With the power savings of the MXM based card (95 watt vs 150 watt power design), there's tangible power savings over 8 GPUs as well if you're paying for power.

So something like this design might make sense from a cost standpoint.

I don't know myself. I don't mine I'm just one of those guys lost in the console world until prices return to sanity.
 
Reactions: IEC and PhonakV30

Yakk

Golden Member
May 28, 2016
1,574
275
81
Yup. All this. A TON of people are moving from ETH/alts into BTC because of the fork. I fully expect BCC to crash and die within a month or two and for people to also dump BTC after end of Aug when everything is solidified. ETH/alts will be depressed and undervalued until this mess is over but I see potential FOMO moon lambo action happening before the end of the year, possibly even before Oct.

I do not believe BCC will crash as on top of the huge block size, the developers integrated a version of ETH DA code, to create EDA (Emergency Difficulty Adjustment) as part of BCC. Where block mining difficulty can adjust up to 20% after each block mined. Repeat, up to 20% adjustment after each block mined. They knew it would be a hard take-off so they prepared for it as best they could.

BCC is essentially a merge of BTC & ETH code. Similar reason ETH & ETC coexist. Long term BTC will probably have to fork again to achieve what the BCC developers did earlier. Short & medium term BTC will rise, long term I'm not so sure.
 

Head1985

Golden Member
Jul 8, 2014
1,866
699
136
ethereum is already 300USD up 50% from last week.It is again viable buying GPU for mining?
 

DrMrLordX

Lifer
Apr 27, 2000
21,805
11,158
136
According to my napkin math, ETH is currently at ~$2.16 per month per MH/s. If you like that number then go right ahead, but not too long ago ETH mining brought in more like $5 per month per MH/s so make of that what you will.
 

ozzy702

Golden Member
Nov 1, 2011
1,151
530
136
According to my napkin math, ETH is currently at ~$2.16 per month per MH/s. If you like that number then go right ahead, but not too long ago ETH mining brought in more like $5 per month per MH/s so make of that what you will.

I've been in the process of selling my year old 480s for $235-$250 a pop and if Vega really does well I may pickup a few but at this point it just doesn't make any sense to purchase hardware for mining. I only buy hardware to mine if the ROI is six months or less. For that to be the case ETH would need to be around $750 for a 6 month ROI. While I think ETH will eventually be there, I think it's smarter just to buy ETH now and sit on it than deal with the hassle of mining.

Eventually I'll be down to just my 20 1070s and then start selling them off before Volta hits. I don't have free power or cheap industrial power so that's a big factor in my calculations since I also have to cool my house (or risk my wife killing me in my sleep).
 

Madpacket

Platinum Member
Nov 15, 2005
2,068
326
126
I know it doesn't make sense but I'll probably build a Vega rig if they mine anywhere near 60Mh. I also would do it just to annoy all the entitled gamers who think videocards are just for PC Gaming
 

Yakk

Golden Member
May 28, 2016
1,574
275
81
I know it doesn't make sense but I'll probably build a Vega rig if they mine anywhere near 60Mh. I also would do it just to annoy all the entitled gamers who think videocards are just for PC Gaming

Same, without the annoying part.

Actually I'm in need of a new rig and I was going to build a Threadripper Rig, but the Vega bundle changed my mind. Ryzen it is. Don't know if I'll pickup more than 1 card, maybe, if it mines well and has a decent chance of hitting ROI.
 

VeryCharBroiled

Senior member
Oct 6, 2008
387
25
101
Same, without the annoying part.

Actually I'm in need of a new rig and I was going to build a Threadripper Rig, but the Vega bundle changed my mind. Ryzen it is. Don't know if I'll pickup more than 1 card, maybe, if it mines well and has a decent chance of hitting ROI.

im temped too.

ill have to switch over to my 1200 watt hp server psu with breakout board to do it as my evga g2 850 wont cut it adding a vega to my 5 card rig. pulls 750 - 840 watts from the wall as it is, depending on algo and if its dual mining or not.

need a nano psu adapter to run everything from a single server psu. dont like dual psu setups..
 
sale-70-410-exam    | Exam-200-125-pdf    | we-sale-70-410-exam    | hot-sale-70-410-exam    | Latest-exam-700-603-Dumps    | Dumps-98-363-exams-date    | Certs-200-125-date    | Dumps-300-075-exams-date    | hot-sale-book-C8010-726-book    | Hot-Sale-200-310-Exam    | Exam-Description-200-310-dumps?    | hot-sale-book-200-125-book    | Latest-Updated-300-209-Exam    | Dumps-210-260-exams-date    | Download-200-125-Exam-PDF    | Exam-Description-300-101-dumps    | Certs-300-101-date    | Hot-Sale-300-075-Exam    | Latest-exam-200-125-Dumps    | Exam-Description-200-125-dumps    | Latest-Updated-300-075-Exam    | hot-sale-book-210-260-book    | Dumps-200-901-exams-date    | Certs-200-901-date    | Latest-exam-1Z0-062-Dumps    | Hot-Sale-1Z0-062-Exam    | Certs-CSSLP-date    | 100%-Pass-70-383-Exams    | Latest-JN0-360-real-exam-questions    | 100%-Pass-4A0-100-Real-Exam-Questions    | Dumps-300-135-exams-date    | Passed-200-105-Tech-Exams    | Latest-Updated-200-310-Exam    | Download-300-070-Exam-PDF    | Hot-Sale-JN0-360-Exam    | 100%-Pass-JN0-360-Exams    | 100%-Pass-JN0-360-Real-Exam-Questions    | Dumps-JN0-360-exams-date    | Exam-Description-1Z0-876-dumps    | Latest-exam-1Z0-876-Dumps    | Dumps-HPE0-Y53-exams-date    | 2017-Latest-HPE0-Y53-Exam    | 100%-Pass-HPE0-Y53-Real-Exam-Questions    | Pass-4A0-100-Exam    | Latest-4A0-100-Questions    | Dumps-98-365-exams-date    | 2017-Latest-98-365-Exam    | 100%-Pass-VCS-254-Exams    | 2017-Latest-VCS-273-Exam    | Dumps-200-355-exams-date    | 2017-Latest-300-320-Exam    | Pass-300-101-Exam    | 100%-Pass-300-115-Exams    |
http://www.portvapes.co.uk/    | http://www.portvapes.co.uk/    |