Sapphire RX 550 2Gb Best ROI ~ 450 H/s cryptonight

[warning_btc]

Yesterday i am test new Sapphire RX 550 2Gb DDR5 GPU
It give 300 H/s on stock frequencies, but if patch their timing easy get 450 H/s on cryptonote algo.
All need to do is:
1) Download bios rom image with GPU-Z,
2) Then open with polaris bios editor and click button "one click patch" and save rom
3) Then flash new image with ATI flasher
4) Patch drivers with atikmdag and reboot your rig
5) Set frequencies in MSI AB: Core clock 1250 memory 1900 Power limit +5
6) Test and enjoy
All needed files there: https://drive.google.com/open?id=1Yja5l6ZB9SlNsLIiMkKyFlSC4qKmBqT7

[Vann]

How much power? HD 7850 does ~500 H/s @100 W for $60-80 on eBay.

[warning_btc]

It cost lower than 50W

[Vann]

That's pretty good but the HD 7850 also does ~19.5 MH/s on Ethash coins with a <2GB Dag like UBQ, or ~80 cents/day with a ~3 month ROI.

http://whattomine.com/coins/173-ubq-ethash?utf8=%E2%9C%93&hr=19.0&p=130.0&fee=3.0&cost=0.12&hcost=80&commit=Calculate

The RX 550 is only ~30 cents/day on XMR.

http://whattomine.com/coins/101-xmr-cryptonight?utf8=%E2%9C%93&hr=450&p=45&fee=3.0&cost=0.12&hcost=0.0&commit=Calculate

[MATTX]

Try mining dero with cryptonight algo.
If you need coin with purpose and more than just fork or gui wallet go for Dero,
research you coin first and read carefully the details about it.
https://github.com/deroproject/documentation/blob/master/WhitePaper.md
I am personally mining dero.
DERO: Privacy + Smart Contracts + Lightning Fast Transactions, like monero + ethereum
https://bitcointalk.org/index.php?topic=2525508
You can use cpu to mine dero.
http://pool.dero.live/

[LearningGuy]

Yesterday i am test new Sapphire RX 550 2Gb DDR5 GPU
It give 300 H/s on stock frequencies, but if patch their timing easy get 450 H/s on cryptonote algo.
All need to do is:
1) Download bios rom image with GPU-Z,
2) Then open with polaris bios editor and click button "one click patch" and save rom
3) Then flash new image with ATI flasher
4) Patch drivers with atikmdag and reboot your rig
5) Set frequencies in MSI AB: Core clock 1250 memory 1900 Power limit +5
6) Test and enjoy
All needed files there: https://drive.google.com/open?id=1Yja5l6ZB9SlNsLIiMkKyFlSC4qKmBqT7

Thanks for sharing!

[Branko]

That's pretty good but the HD 7850 also does ~19.5 MH/s on Ethash coins with a <2GB Dag like UBQ, or ~80 cents/day with a ~3 month ROI.

http://whattomine.com/coins/173-ubq-ethash?utf8=%E2%9C%93&hr=19.0&p=130.0&fee=3.0&cost=0.12&hcost=80&commit=Calculate

The RX 550 is only ~30 cents/day on XMR.

http://whattomine.com/coins/101-xmr-cryptonight?utf8=%E2%9C%93&hr=450&p=45&fee=3.0&cost=0.12&hcost=0.0&commit=Calculate

I highly doubt that, my R9 380 with modified bios is doing only 21.5 at ethash algos

Although, your 7850 OCs really well, my MSI 7850 1GB version OCs only to 1350

Also, monero is not the frist option for cryptonight these days, there are more worthy coins
(although most of them are shitcoins, but hey, people still buy them )

[Vann]

That's pretty good but the HD 7850 also does ~19.5 MH/s on Ethash coins with a <2GB Dag like UBQ, or ~80 cents/day with a ~3 month ROI.

http://whattomine.com/coins/173-ubq-ethash?utf8=%E2%9C%93&hr=19.0&p=130.0&fee=3.0&cost=0.12&hcost=80&commit=Calculate

The RX 550 is only ~30 cents/day on XMR.

http://whattomine.com/coins/101-xmr-cryptonight?utf8=%E2%9C%93&hr=450&p=45&fee=3.0&cost=0.12&hcost=0.0&commit=Calculate

I highly doubt that, my R9 380 with modified bios is doing only 21.5 at ethash algos

Although, your 7850 OCs really well, my MSI 7850 1GB version OCs only to 1350

Also, monero is not the frist option for cryptonight these days, there are more worthy coins
(although most of them are shitcoins, but hey, people still buy them )

1020/1500 at -ethi 1 will get you 17.5-18 MH/s on Ethash with HD 7850 2GB card. At -ethi 4 you will get ~19.5 MH/s, but the cards will run at 80C< with the stock single fan.

https://bitcointalk.org/index.php?topic=2959030.msg30412563#msg30412563

[warning_btc]

after forking algo on monero, my miner stop working.
I am start xmrig and it gives less 40H/s then gateless gate

[igotek]

Yesterday i am test new Sapphire RX 550 2Gb DDR5 GPU
It give 300 H/s on stock frequencies, but if patch their timing easy get 450 H/s on cryptonote algo.
All need to do is:
1) Download bios rom image with GPU-Z,
2) Then open with polaris bios editor and click button "one click patch" and save rom
3) Then flash new image with ATI flasher
4) Patch drivers with atikmdag and reboot your rig
5) Set frequencies in MSI AB: Core clock 1250 memory 1900 Power limit +5
6) Test and enjoy
All needed files there: https://drive.google.com/open?id=1Yja5l6ZB9SlNsLIiMkKyFlSC4qKmBqT7

is your RX550 Elpida 2GB ?

[agrld]

baffin / lexa ?

[igotek]

baffin / lexa ?

Baffin

[Truthchanter]

How does rx 550 compare to 560 for ROI and hash per power consumption?

[playfast]

With undervolting you can get power consumption down below 35W with the 550/560.
I have my 560's undervolted to 910 mV and they only draw 32W each. Clocked at ~1200/2160. 535 H/s with xmr-stak and 505 H/s with Claymore. But I use Claymore despite the lower hashrate because it seems to be more efficient at finding shares.

A tip with these cards when mining Cryptonight: Most of the time the highest stable memory clock is not optimal. The proper way to judge the optimal memory clock is by how well the card finds shares. For instance if your max stable memory clock is 2100, you might want to try underclocking to 2090/2080/2070 and watch to see the point where the card starts finding the most shares.

[koody]

With undervolting you can get power consumption down below 35W with the 550/560.
I have my 560's undervolted to 910 mV and they only draw 32W each. Clocked at ~1200/2160. 535 H/s with xmr-stak and 505 H/s with Claymore. But I use Claymore despite the lower hashrate because it seems to be more efficient at finding shares.

A tip with these cards when mining Cryptonight: Most of the time the highest stable memory clock is not optimal. The proper way to judge the optimal memory clock is by how well the card finds shares. For instance if your max stable memory clock is 2100, you might want to try underclocking to 2090/2080/2070 and watch to see the point where the card starts finding the most shares.

I noticed that mining ETH to, a little less hashrate and you get more valid shares, i will lower all clocks of my rigs  .

[Truthchanter]

With undervolting you can get power consumption down below 35W with the 550/560.
I have my 560's undervolted to 910 mV and they only draw 32W each. Clocked at ~1200/2160. 535 H/s with xmr-stak and 505 H/s with Claymore. But I use Claymore despite the lower hashrate because it seems to be more efficient at finding shares.

A tip with these cards when mining Cryptonight: Most of the time the highest stable memory clock is not optimal. The proper way to judge the optimal memory clock is by how well the card finds shares. For instance if your max stable memory clock is 2100, you might want to try underclocking to 2090/2080/2070 and watch to see the point where the card starts finding the most shares.

550 looks cheaper than 560.. they both hash the same h/s with cryptonight and have the same power draw? any reason to get 560 over 550?

[markiz73]

It is better not to buy anything else. They take up a lot of space and give a funny profit. And the main thing is limited in the capabilities of mining on other algorithms. 2 GB graphics card has long exhausted its capabilities

[playfast]

With undervolting you can get power consumption down below 35W with the 550/560.
I have my 560's undervolted to 910 mV and they only draw 32W each. Clocked at ~1200/2160. 535 H/s with xmr-stak and 505 H/s with Claymore. But I use Claymore despite the lower hashrate because it seems to be more efficient at finding shares.

A tip with these cards when mining Cryptonight: Most of the time the highest stable memory clock is not optimal. The proper way to judge the optimal memory clock is by how well the card finds shares. For instance if your max stable memory clock is 2100, you might want to try underclocking to 2090/2080/2070 and watch to see the point where the card starts finding the most shares.

550 looks cheaper than 560.. they both hash the same h/s with cryptonight and have the same power draw? any reason to get 560 over 550?

560 2gb is pretty cheap and superior to all 550's for mining Ethash coins with small DAG size. Most 560's will do ~15-16 MH/s and 550's only ~12-13 MH/s.
I have my 560 2gb cards mining EXP (expanse) it's very good because of low difficulty and stable coin price. I use MPH and auto-exchange it, but only when the price on the bigger coins dip.

[Truthchanter]

With undervolting you can get power consumption down below 35W with the 550/560.
I have my 560's undervolted to 910 mV and they only draw 32W each. Clocked at ~1200/2160. 535 H/s with xmr-stak and 505 H/s with Claymore. But I use Claymore despite the lower hashrate because it seems to be more efficient at finding shares.

A tip with these cards when mining Cryptonight: Most of the time the highest stable memory clock is not optimal. The proper way to judge the optimal memory clock is by how well the card finds shares. For instance if your max stable memory clock is 2100, you might want to try underclocking to 2090/2080/2070 and watch to see the point where the card starts finding the most shares.

550 looks cheaper than 560.. they both hash the same h/s with cryptonight and have the same power draw? any reason to get 560 over 550?

560 2gb is pretty cheap and superior to all 550's for mining Ethash coins with small DAG size. Most 560's will do ~15-16 MH/s and 550's only ~12-13 MH/s.
I have my 560 2gb cards mining EXP (expanse) it's very good because of low difficulty and stable coin price. I use MPH and auto-exchange it, but only when the price on the bigger coins dip.

What about cryptonight algo? I'm wondering the optimum hashrate vs power consumption of 550 vs 560

[playfast]

With undervolting you can get power consumption down below 35W with the 550/560.
I have my 560's undervolted to 910 mV and they only draw 32W each. Clocked at ~1200/2160. 535 H/s with xmr-stak and 505 H/s with Claymore. But I use Claymore despite the lower hashrate because it seems to be more efficient at finding shares.

A tip with these cards when mining Cryptonight: Most of the time the highest stable memory clock is not optimal. The proper way to judge the optimal memory clock is by how well the card finds shares. For instance if your max stable memory clock is 2100, you might want to try underclocking to 2090/2080/2070 and watch to see the point where the card starts finding the most shares.

550 looks cheaper than 560.. they both hash the same h/s with cryptonight and have the same power draw? any reason to get 560 over 550?

560 2gb is pretty cheap and superior to all 550's for mining Ethash coins with small DAG size. Most 560's will do ~15-16 MH/s and 550's only ~12-13 MH/s.
I have my 560 2gb cards mining EXP (expanse) it's very good because of low difficulty and stable coin price. I use MPH and auto-exchange it, but only when the price on the bigger coins dip.

What about cryptonight algo? I'm wondering the optimum hashrate vs power consumption of 550 vs 560

On Cryptonight power consumption is virtually the same, depends on how much core voltage it runs at, the 560's undervolt flawlessly.
550 is only better value at Cryptonight if you're lucky to get 480-500 H/s (hope for Elpida). Many cannot do over 450 H/s.
560 2gb is guaranteed 500 H/s (Hynix or Elpida doesn't matter) and the better value if you can find it cheap.