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Ethereum GPU mining?

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How is Rx 480 Terrible at mining card ?

***.cryptocompare.com/mining/sapphire/radeon-r9-295x2-ethereum-mining/

500w for 51Mh/s , if RX 480 110W with 24Mh/s , you buy 4 for 96Mh/s and 440w or maybe with low voltage you can reduce to 400 or lower.
 
DrMrLordX said:
290X doesn't have to use 300W mining, though. You can easily get 30 MH/s out of a reference 290 @ 200W if you don't mind the blower (and the VRMs haven't started to act up, and the TIM isn't dried out and cracking, and and yeah).
Click to expand...

200W with undervolting?

Kill-A-Watt meter on my Haswell Pentium system with R9 280X used 215W at stock.

Undervolting it to 1088mV from 1200mV brought that down to 192W. 90% efficient on Suprnova G2 1300W suggests that its actual power is 173W. Assuming 50W for non-video card, that means 123W undervolt, 144W stock.

So it requires 50% more power?

behrouz: I highly doubt the R9 295X2 would use 500W alone. Not even system it's going to use 500W.

According to that site R9 280X has TDP of 180W. My default was 140W. That's roughly 75%. That means 375W for 295X2. Add 50W and you end up with 425W. Undervolting and maybe you get to 380W. If RX 480 follow the same rule, 150W is going to turn out to be 120W. Will you be able to undervolt much if you can? It's good to take worst side for the estimates. Also maybe the impact of undervolting isn't going to be as high as 280X and 290. The reason being that GDDR5 power is going to be somewhat more dominant(since the chip TDP is far lower), albeit few %.

Also there's a good reason to get the RX 480 over R9 290. The former will have much better resale value. And might last you longer if you decide after Ethereum rush is over you go to gaming, rendering, or mining other flavor of the day coins.
 
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Yes, 200W with undervolting. A reference 290 at -100 mV pulls around 200W from the PSU when clocked to 1070 MHz if you have a "good one", which is one that hasn't worn out or . . . whatever. I've also had some nightmare cards that pull 225W or more in the same scenario and overheat like a sumbitch.

Polaris will have better resale value.
 
DrMrLordX said:
Yes, 200W with undervolting. A reference 290 at -100 mV pulls around 200W from the PSU when clocked to 1070 MHz if you have a "good one", which is one that hasn't worn out or . . . whatever. I've also had some nightmare cards that pull 225W or more in the same scenario and overheat like a sumbitch.

Polaris will have better resale value.
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Pretty much this. However you can get the 290's down to roughly 150W per card @ 25Mh without custom BIOS's so the 480's are looking like a good upgrade power consumption wise. They may not be the best value for mining though.

At this point in time it's worth waiting for the new cards to see how they really perform and what the real cost will be. I suspect initially we may get gouged like Nvidia did with the 1070's but when the aftermarket cards arrive prices should settle down near MSRP if availability is decent.
 
according to videocardz:
RX-480-Temp-Clock-test.jpg


RX 480 : 1.0875v with 112w.maybe you get to 90w with undervolting.

Edit : here for 1070

A guy has test the GTX 1070 on Linux.
22 MH/s @stock for <100W
up to 31 MH/s with power tuning for < 150W
http://forum.ethereum.org/discussion/7722/gtx-1070-fe-mining-benchmarks
Click to expand...

ref : https://bitcointalk.org/index.php?topic=1464999.msg15247881#msg15247881
 
DrMrLordX said:
Interesting. Fury Nano can do around 33 MH/s @ 150W no? So the 1070 is close to that. Too bad prices on both cards are so high.
Click to expand...

I am somewhat interested in the results for RX 470 as well. The SPs get cut down to 2048, which isn't much and GDDR5 is at 7GT/s. Its not going to be drastically lower than RX 480. Call it "GTX 1070" of Polaris.

If RX 480 gets 24MH/s RX 470 might be 22. At $149 for the 4GB it seems like a superb value. Of course time is money in the mining world and RX 470 isn't going to be here right away.

Update: According to Intel, the MCDRAM on the Xeon Phi "Knights Landing" CPU has a latency which with eyeballing I'd estimate 50% or greater latency compared to the 6-channel DDR4 setup, until the workload gets suffiently large.

That explains why Fury isn't any faster in hashing. If we assume GDDR5 latency is right smack dab in between GDDR5 and HBM, you'd be looking at latency some 20-30% higher. Since latency is of importance for hash rates as people figured out, whatever bandwidth benefits HBM can give is largely negated by latency difference. I'd assume then the workload is fairly small.

Ideally, the best dagger-hashimoto setup would be:
-Assuming Intel buys RTG to replace their graphics group as the fanciful story per the web
-Decides to keep the eDRAM config, expand it to many more times bandwidth
-Introduces a Radeon-based HPC part with that setup. eDRAM being the fast cache for HBM.

The eDRAM on the Iris Pro chips have blisteringly fast latency considering its size. Super bandwidth and super latency with caching for lower levels like HBM.
 
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Whlep. There goes first batch of polaris. Or those units undergo heavy duty reliability tests in AMDs labs before being pushed to the market 😉
 
thilanliyan said:
From that thread:
"I went into a best buy less then a week ago to ask if they'd have any on stock and everyone said they didn't even know that AMD had new cards coming out. One said they didn't know about AMDs cards, but he knew Intel had just launched the 1080... just like, why?"

I lol'd. 😀
Click to expand...

Pretty much why I only shop online these days. Amazon will likely make Big Box stores like BestBuy dissapear soon enough.
 
Madpacket said:
Awesome.

If AMD didn't see this coming I don't know what else to say.
Click to expand...

That is why I hope I get a shot to buy one off Newegg before any reviews go online.

The gamers that wait for reviews are gonna be screwed with MSRP + 20% second shipments.

I set an email notification for every model of 480 they have listed. Gonna get mine lol.
 
I read that the 1070 can do really well under linux, but both 1080 and 1070 do very poorly in windows currently. The 1080 is actually slower in general iirc due to difference in GDDR5X
 
Shmee said:
I read that the 1070 can do really well under linux, but both 1080 and 1070 do very poorly in windows currently. The 1080 is actually slower in general iirc due to difference in GDDR5X
Click to expand...

From what I gather they are just matching stock 290s/390s? At lower power usage I guess though.
 
Shmee said:
I heard that the 1070 was just over 30 MH/s in linux @ ~ 150W.

https://bitcointalk.org/index.php?topic=1464999.340

http://forum.ethereum.org/discussion/7722/gtx-1070-fe-mining-benchmarks
Click to expand...

From that ethereum site post it looks like it is OCed that it is getting 30MHs? That's not a stock 1070 right?
That's pretty good for 150w. I'd never be able to use Linux on a daily basis though lol.

I'm using about 250w per card for 30MHs on my 290s so that's a good bit better on MHs/w. For someone running a farm I think it would make sense for the power savings. Doesn't make much sense for someone like myself running only two cards to switch over to 1070s though since the initial cash outlay would be quite high.
 
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Madpacket said:
Awesome.

If AMD didn't see this coming I don't know what else to say.
Click to expand...
Not much they could do about it back then, or even now, however I've always opined that they'd have made tons of $ mining BTC or litecoins, when they were booming, instead of selling the cards to miners. Maybe they can restrict the quantities an individual can buy, however the retailers will still make hay at the cost of AMD 😵
poofyhairguy said:
I set an email notification for every model of 480 they have listed. Gonna get mine lol.
Click to expand...
Saw what you did there :sneaky:
 
R0H1T said:
Not much they could do about it back then, or even now, however I've always opined that they'd have made tons of $ mining BTC or litecoins, when they were booming, instead of selling the cards to miners. Maybe they can restrict the quantities an individual can buy, however the retailers will still make hay at the cost of AMD 😵Saw what you did there :sneaky:
Click to expand...

I have 15 slots ready to stick these card in.

I sold all my nanos and all my r9 390's

My issue is heat so these cards should use far less power and solve my heat issues.
 
philipma1957 said:
I have 15 slots ready to stick these card in.

I sold all my nanos and all my r9 390's

My issue is heat so these cards should use far less power and solve my heat issues.
Click to expand...

Yeah this time of year heat is the biggest problem but that will start to subside in a few months at least where I live.

My plan is to replace my existing cards two at a time to eventually cut down on power/heat. It'll take a few months to transition but with the difficulty increase I figure slowly replacing rather than selling the lot will likely yield a higher return.
 
R0H1T said:
Not much they could do about it back then, or even now, however I've always opined that they'd have made tons of $ mining BTC or litecoins, when they were booming, instead of selling the cards to miners. Maybe they can restrict the quantities an individual can buy, however the retailers will still make hay at the cost of AMD 😵Saw what you did there :sneaky:
Click to expand...

So let's figure this out..

https://etherscan.io/charts/hashrate

Highest Avg Hashrate is 4028.7283 Gh as of today.

If we just assume Radeon 390's for simplicity at 30Mh per card:

AMD has sold ((4028 * 1000) / 30)) = One Hundred and Thirty Four Thousand, Two Hundred and Sixty Seven cards! 134,267.

The number is likely much higher as there are plenty of lower hashrate cards such as the 7970/280x/270/370/380/380X series.

Now let's assume 10% of the mining pool is made up of Nvidia based cards (likely much less although that could change if the 1070 numbers floating around are real).

That's still a significant number of cards and money AMD has made off miners. I don't know how many cards they sell per quater, per year etc. but the supposed 8,000 RX480's ready for launch seems pretty miniscule when you look at the existing hashing rates.

Following this logic I don't think it takes much to extrapolate there will be a massive shortage and silly price hikes unless production really ramps up soon.
 
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Madpacket said:
Awesome.

If AMD didn't see this coming I don't know what else to say.
Click to expand...

I tweeted a few people months ago from AMD asking/warning them to not let mining ruin this launch like the 290/X. They said they wouldn't let that happen again. With no further details. YMMV.
 
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Madpacket said:
So let's figure this out..

https://etherscan.io/charts/hashrate

Highest Avg Hashrate is 4028.7283 Gh as of today.

If we just assume Radeon 390's for simplicity at 30Mh per card:

AMD has sold ((4028 * 1000) / 30)) = One Hundred and Thirty Four Thousand, Two Hundred and Sixty Seven cards! 134,267.

The number is likely much higher as there are plenty of lower hashrate cards such as the 7970/280x/270/370/380/380X series.

Now let's assume 10% of the mining pool is made up of Nvidia based cards (likely much less although that could change if the 1070 numbers floating around are real).

That's still a significant number of cards and money AMD has made off miners. I don't know how many cards they sell per quater, per year etc. but the supposed 8,000 RX480's ready for launch seems pretty miniscule when you look at the existing hashing rates.

Following this logic I don't think it takes much to extrapolate there will be a massive shortage and silly price hikes unless production really ramps up soon.
Click to expand...

You aren't actually buying into Kyle's rhetoric? lol

Even if you want to put any faith in his report, that 8K is for NA only. Not world wide.
 
3DVagabond said:
You aren't actually buying into Kyle's rhetoric? lol

Even if you want to put any faith in his report, that 8K is for NA only. Not world wide.
Click to expand...

Good idea tweeting them but I doubt they're ready for the miner onslaught ;D

We really have no idea how many will be available at launch, only AMD does. I used that number as it was the only one mentioned so far but yeah coming from Kyle who knows. He could be completely off but that number seemed reasonable given the RX480's are built on a completely new fab.
 
Madpacket said:
Good idea tweeting them but I doubt they're ready for the miner onslaught ;D

We really have no idea how many will be available at launch, only AMD does. I used that number as it was the only one mentioned so far but yeah coming from Kyle who knows. He could be completely off but that number seemed reasonable given the RX480's are built on a completely new fab.
Click to expand...

If we have Hawaii launch part deux, I'm gonna really have some fun on Twitter with these guys.
 
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