Topic: AMD Hawaii GPUs (R9 290/290X/390/295X2) Appreciation Thread - page 2. (Read 789 times)

Great thread, but I think you should add fijis with hawaiis there: fury, fury x and nano cards since they are all from the same era.

anyways, my 390 and 390x get 800 and a little above 800 H/s on the v7, on the v8 they perform slightly worse - around 780 H/s all stock clocks.

On the other hand, my fijis (have them all 3) on v7 get the same hashrate as 390, but on v8 even worse then hawaii, 650 H/s at best, obviously they're running less hot and consuming less power than hawaiis,
but I don't know if I'm doing something wrong here.
How is it possible that fijis have worse mining performance than hawaii cards in v7 and v8 when fijis are clearly more powerful than hawaiis?

Does somebody here have a better experience with fijis than me in v7/v8 mining?

The only rig I ever had I built with my own hands and used 5 R9 290 cards as the "money makers" . During cold months (through October to March) those monsters kept my bedroom comfortably warm and cozy . Made them silent by scrapping the reference cooler and DIY watercooled them. Good times!

Mined ETH and Cryptonight coins

I still mine cryptonight based coins with my reference 290x and a few 290s.  On v7 the 290x's get 840 h/s and the 290's got about 790 I want to say.  On v8 the 290x get about 790 and the 290 get 745.  I haven't checked wattage since v8 came out but it should still be profitable I think.

My nitro 390's get about 790 on v8.

Lately I've been using my test machine with a non-reference 290x to optimize wildrig ( https://bitcointalksearch.org/topic/wildrig-multi-0351-beta-2-multi-algo-miner-for-amd-nvidia-5023676 ) within RainbowMiner in hopes finding a diamond in the rough. I've only done about 3 algos but cnv8 still seems to be the most profitable.  I think the 290x has tons of room to be optimized but the developer doesn't have a hawaii card.  Maybe he'll take a donation card.

These cards are still good if you happen to be in a country with low electricity, I can think of Washington DC with only 0.02 cent/kilowatt these cards can still be good enough especially if you have the R9 390 card or the Radeon 295x2.

I think these cards are being sold for very cheap in marketplaces like Ebay or Amazon right now.

Mined LTC Scrypt back in the day with these had 4 of these monsters, in heat, power and hash! Sold off in 2014 before the whole Mt Gox incident and crash due to me moving out of WA to CA. Got back into mining in summer of 2017 and starting looking for these bad boys again... but people wanted insane prices 290's were going for $200-300 then... sure as heck was a mining craze.

I have a few XFX R9 390. I mined that with ETH over the years. If I want to mine XMR V8, it is better to modify the memory timing? Any source of memory timing for XFX cards?

What to mine next?  I mined a lot of Ethereum and ZCash with these cards, mostly R9-390's.  I have sold probably 30 of these and more for sale now.

I don't have power going to a single R9-class card at this time.

Due to the huge success of my Tahiti GPU appreciation thread, I figured I would make one for the higher end GPUs from the same era; Hawaii.

The Hawaii GPU chipset was released with the R9 290 and R9 290X which were released in Sept 2013. These GPUs were mostly ordered for Litecoin mining (Scrypt) to profit off the Crypto boom of 2013 when BTC peaked at $1100 USD.

However the profitability was short lived because once the R9 290 were delivered to customers the mining profitability took a huge turn to the down side, so many many miners were actually sitting at a huge loss if they ordered this GPU too late in the game.

In 2013/2014, it was mostly used to mine SCRYPT coins such as Litecoin/Dogecoin. If I recall the speed was around 800KH-900KH/s depending on clock rate.

In 2015, it was mostly used to run Darkcoin X11 algo.

In 2016-2018 it spent most of its time with the Dagger Hashimoto ETH mining algo. Basically it didn't suffer the early Thrashing bug so under stock clocks (947/1250mhz) it achieved a speed of 26.5MH/s and could easily break 31MH/s if noise/power consumption wasn't an issue.

However it looks like the Hawaii's are suffering the same DAG thrashing as did the Tahiti GPU and will lead to their eventual shutdown.

Currently under stock clocks all I can achieve is around 23.5MH/s and mining ETC which is about 7 DAGs ahead, it hashes at 22.5MH/s and there is no fix in sight.

Putting these numbers into What-To-Mine under 10 cent KwH power results in a profit of NOTHING.

Unfortunately the Hawaii GPUs are under the 28nm technology and are basically power hogs. The best undervolt I can only achieve around 170 Watts or so mining at 23.5MH/s. This is horrible since an RX GPU can achieve around 28MH/s using only 130 Watts or so.

I don't hold too many of these GPUs so I haven't had much time to investigate what speeds it generates with XMR V8. But under XMR V7 it only achieved 700H/s so most likely with V8 it will be much slower.

So lets discuss what coin to mine next with this once powerful GPU.