r9 280x eth mining

[Newwsr]

We have 4 r9 280x are doing mhs 17.88 each and a normal 18.730 ?
This dual MINING eth + dcr

Total 72.833 mh / s

[Q_R_V]

Yes, it's possible on stock clocks.

[reb0rn21]

voltage 1.09v 4x 79xx

GPU 1030Mhz

speed per GPU 19.3Mh/s, GPU which is primary and has monitor connected does only 17.9Mh/s

[Fanpant]

voltage 1.09v 4x 79xx

GPU 1030Mhz

speed per GPU 19.3Mh/s, GPU which is primary and has monitor connected does only 17.9Mh/s

That is very good speed. You might want to reduce the core frequency a little bit. The memory speed matters.

[reb0rn21]

79xx and 280x are 384bit memory interface so memory speed has very little influence with ethereum

Tonga 380, 480 etc have 256bit interface and there memory need more speed to get more hashes/s

[kotarius]

For r9 280x, I would set overclock to 1100 and powertune to 20.

[kissmarx]

We have 4 r9 280x are doing mhs 17.88 each and a normal 18.730 ?
This dual MINING eth + dcr

Total 72.833 mh / s

I have old r9 280x cards doing nothing in the storage room. Finding this thread, I don't want them laid to waste. If I use them to mine ETH, can they still get around those hashrates nowadays?

[Johny101010]

We have 4 r9 280x are doing mhs 17.88 each and a normal 18.730 ?
This dual MINING eth + dcr

Total 72.833 mh / s

I have old r9 280x cards doing nothing in the storage room. Finding this thread, I don't want them laid to waste. If I use them to mine ETH, can they still get around those hashrates nowadays?

No they can not. If I remember correctly they only have 3gig of ram and eth now needs at least 4gig.
You can however mine things like ubiq, Ella etc tha have low dag but you have to have free or extremely cheap electricity.
Best bet, sell them for 40-50 bucks, but your coin of choice and wait for it to go up.

[adaseb]

This thread sure brings back memories. At first I was confused why are people trying to mine ETH with an R9 280X but then I checked the date.

Back in 2016 you could mine ETH at around 20MH/s however as the Epoch DAG grew it slowed down more and more. I think about a year ago when I last tried mining ETH, it ran at maybe 8MH/s and consumed maybe 200 Watts. So very unprofitable.

AMD never issued a fix for the DAG issue unlike the Polaris GPUs (RX 470/570) so many of them were just powered off and sold to gamers. The same issue is happening with the R9 290 which can still mine ETH due to its 4GB of memory but the DAG slowdown, makes its very unprofitable.

Basically like the above poster said, just sell for $40 and get an Rx 470.

[kissmarx]

We have 4 r9 280x are doing mhs 17.88 each and a normal 18.730 ?
This dual MINING eth + dcr

Total 72.833 mh / s

I have old r9 280x cards doing nothing in the storage room. Finding this thread, I don't want them laid to waste. If I use them to mine ETH, can they still get around those hashrates nowadays?

No they can not. If I remember correctly they only have 3gig of ram and eth now needs at least 4gig.
You can however mine things like ubiq, Ella etc tha have low dag but you have to have free or extremely cheap electricity.
Best bet, sell them for 40-50 bucks, but your coin of choice and wait for it to go up.

Thanks for the response bro. I will just instead mine those old cards with low dag coins since electricity is not a problem here.

[babos8383]

I have rx 570 issues - 26-28 mh/s. before that, used for mining r9 290x speed was around 20-22. the new maps give a good performance

[VasilyS]

r9 290/390 give 29-30 mh/s while mining on Ubuntu. For a serious increase in performance, you have to use Ubuntu version no higher than 16.04 (with new Ubuntu kernels these cards have poor compatibility). You have to install driver version 17.40 and AMD SDK kit. Switching to Linux-like OS gives additional 10 mh/s (50%). There is a guide how to do it (in Russian): https://www.cryptoprofi.info/?p=3313. Ubuntu will be useful for mining on all old cards including R9 280, 290, 295 and 390.

[swogerino]

The speed is good for cards that are a few years old now.These cards consume more energy than the newer ones and with the actual mining performance you don't get a lot of profit if any at all.

If you are mining to keep the rewards and to wait when the price will be even higher than it is now that is a good thing to do.

[kissmarx]

r9 290/390 give 29-30 mh/s while mining on Ubuntu. For a serious increase in performance, you have to use Ubuntu version no higher than 16.04 (with new Ubuntu kernels these cards have poor compatibility). You have to install driver version 17.40 and AMD SDK kit. Switching to Linux-like OS gives additional 10 mh/s (50%). There is a guide how to do it (in Russian): https://www.cryptoprofi.info/?p=3313. Ubuntu will be useful for mining on all old cards including R9 280, 290, 295 and 390.

I will give Ubuntu a try for these old cards. But how about rx 470 / rx 570? Will they also have higher hash rates with Ubuntu?

[VasilyS]

r9 290/390 give 29-30 mh/s while mining on Ubuntu. For a serious increase in performance, you have to use Ubuntu version no higher than 16.04 (with new Ubuntu kernels these cards have poor compatibility). You have to install driver version 17.40 and AMD SDK kit. Switching to Linux-like OS gives additional 10 mh/s (50%). There is a guide how to do it (in Russian): https://www.cryptoprofi.info/?p=3313. Ubuntu will be useful for mining on all old cards including R9 280, 290, 295 and 390.

I will give Ubuntu a try for these old cards. But how about rx 470 / rx 570? Will they also have higher hash rates with Ubuntu?

No, AMD has good drivers for RX cards for Windows 10.

[kissmarx]

r9 290/390 give 29-30 mh/s while mining on Ubuntu. For a serious increase in performance, you have to use Ubuntu version no higher than 16.04 (with new Ubuntu kernels these cards have poor compatibility). You have to install driver version 17.40 and AMD SDK kit. Switching to Linux-like OS gives additional 10 mh/s (50%). There is a guide how to do it (in Russian): https://www.cryptoprofi.info/?p=3313. Ubuntu will be useful for mining on all old cards including R9 280, 290, 295 and 390.

I will give Ubuntu a try for these old cards. But how about rx 470 / rx 570? Will they also have higher hash rates with Ubuntu?

No, AMD has good drivers for RX cards for Windows 10.

Thanks for your reply. I will run rx470/580 with windows 10. And I will let r9 run with Ubuntu.

[kiaas]

r9 290/390 give 29-30 mh/s while mining on Ubuntu. For a serious increase in performance, you have to use Ubuntu version no higher than 16.04 (with new Ubuntu kernels these cards have poor compatibility). You have to install driver version 17.40 and AMD SDK kit. Switching to Linux-like OS gives additional 10 mh/s (50%). There is a guide how to do it (in Russian): https://www.cryptoprofi.info/?p=3313. Ubuntu will be useful for mining on all old cards including R9 280, 290, 295 and 390.

I will give Ubuntu a try for these old cards. But how about rx 470 / rx 570? Will they also have higher hash rates with Ubuntu?

not just linux, it's the AMDGPU-Pro driver improving things. I was testing an old HD 7850, gets 10-13MH/s on windows and FGLRX on linux, but AMDGPU-Pro on SMOS got me 17-17.7MH/s. HiveOS just refused to use the 7850. SMOS and HiveOS both got me about 27-30MH/s for an R9 290, but only 19-20MH/s on windows. My RX cards were the same on linux distros in general. The RX Cards were the same on linux and windows with compute mode enabled*. linux was doing the same thing as the compute-mode by default, I believe AMDGPU-Pro is basically defaulting to compute-mode behavior for all GCN cards while windows only uses that behavior on GCN3 and up.

[kiaas]

We have 4 r9 280x are doing mhs 17.88 each and a normal 18.730 ?
This dual MINING eth + dcr

Total 72.833 mh / s

Are your cards 3 GB or 4 GB?

R9 280 and 280X's are all 3GB. eth and etc won't fit but there's other coins that will, like expanse, ubiq, callisto, and so forth (I asked an admin of wattpool to add the DAG size of the many ethash coins on their pool, and he did so you could check what coins are viable there). There were a few 6GB 7970's which the 280X is based on.
the R9 285/380/380X have 4GB models available.

[kiaas]

We have 4 r9 280x are doing mhs 17.88 each and a normal 18.730 ?
This dual MINING eth + dcr

Total 72.833 mh / s

related to assumptions I made on previous posts, I'm assuming it's not eth, but an ethash coin, right? ETH and ETC won't fit.I've still had it run on a few cards where it doesn't fit using system memory, but at like 2-4MH/s.
the speed on GCN1 and GCN2 cards will go down as DAG size grows, if you're on windows or using the fglrx driver on old linuxes. Radeon HD 7950/7970/R9 280/280X are all GCN1 "Tahiti" cards.
Claymore added a "benchmark" mode for testing how speed will be impacted by different DAG Epochs. (the epochs determine how the size grows)

[adaseb]

r9 290/390 give 29-30 mh/s while mining on Ubuntu. For a serious increase in performance, you have to use Ubuntu version no higher than 16.04 (with new Ubuntu kernels these cards have poor compatibility). You have to install driver version 17.40 and AMD SDK kit. Switching to Linux-like OS gives additional 10 mh/s (50%). There is a guide how to do it (in Russian): https://www.cryptoprofi.info/?p=3313. Ubuntu will be useful for mining on all old cards including R9 280, 290, 295 and 390.

I will give Ubuntu a try for these old cards. But how about rx 470 / rx 570? Will they also have higher hash rates with Ubuntu?

not just linux, it's the AMDGPU-Pro driver improving things. I was testing an old HD 7850, gets 10-13MH/s on windows and FGLRX on linux, but AMDGPU-Pro on SMOS got me 17-17.7MH/s. HiveOS just refused to use the 7850. SMOS and HiveOS both got me about 27-30MH/s for an R9 290, but only 19-20MH/s on windows. My RX cards were the same on linux distros in general. The RX Cards were the same on linux and windows with compute mode enabled*. linux was doing the same thing as the compute-mode by default, I believe AMDGPU-Pro is basically defaulting to compute-mode behavior for all GCN cards while windows only uses that behavior on GCN3 and up.

It depends what coin you are mining on Daggerhash.

You said you got 7850 running at 13MH/s, since every 7850 has max 2GB of ram you most likely are mining some extremely low DAG coin like Expanse.

So with DAG #0, an R9 280X can mine at 27MH/s and an R9 290 can mine at 31MH/s. I know because it was there when ETH had low DAG numbers.

However you can't mine ETH with an R9 290 at 30MH/s anymore, because sometime last year when the DAG increased the speed slowed down and you get like 15MH/s or less with the R9 290. With the Pitcairns or Tahiti's you can't even mine ETH.

You can mine those other coins but their profitability is way low. And ETH profitability is not that great either. So no point in using those GPUs. Just sell to gamers instead and get a cheap RX 470.