AMD Tahiti GPUs (Radeon 7950 / 7970 / 280X / 7990 ) Owners Appreciation Thread - page 4.

adaseb

legendary

Activity: 3808

Merit: 1723

Quote from: VasilyS on March 16, 2019, 07:03:00 PM

This card gives 8-9 sol/s while mining Beam with lolminer. It is profitable even now.

I looked into this and doesn't seem very profitable. Basically using Nicehash prices of 0.006 kSol/BTC, you make about 19 cents a day. But what is the power consumption? I am guessing its at least 125 Watts so with 0.10c power it yields a loss.

Unless I am calculating this incorrectly or the Nicehash rate for Beam is way too low?

badbart

member

Activity: 449

Merit: 24

I got a couple of these beast 7990s, they run hot as hell. Isn't the power usage too high?

VasilyS

member

Activity: 620

Merit: 21

This card gives 8-9 sol/s while mining Beam with lolminer. It is profitable even now.

adaseb

legendary

Activity: 3808

Merit: 1723

Giving this thread a bump.

Wondering if there is anything out there worth mining with the Tahitis. Basically ever since the XMR fork last week it made the last working algo obsolete since the new non Claymore miners don't support CNR.

The algo was good because even though the speed was slow the power consumption was low. Wondering if anyone had any luck getting CNR working with the Tahitis.

Ossidalm

newbie

Activity: 60

Merit: 0

Quote from: adaseb on October 27, 2018, 01:30:07 AM

Had some time and did some testing with these Tahiti GPU.

Basically XMR-Stak seems to work. The version I used is XMR Aeon Stak 2.5.2 and I found the link in Mattthev signature.

If you got the 7970/280X use intensity 920 and you should get at least 500Hs and up to 550Hs depending on how high your core/engine clock is set. At 1000/1500 you should get close to 500Hs and the GPU shouldn't consume much electricity, around 130Watts or so.

With 7950 with 28 Compute units you will need to lower the intensity a little bit and your speed will be slightly lower.

If you are getting incorrect shares, you will need to lower your memory clock.

Putting these numbers into What to mine with 10 cent power results in a total net profit of nothing. So if you are a die hard hodler or got free or cheaper power, you can mine XMR but for most i think it's time to pack up these GPUs.

If you undervolt a lot, you might get thin profit. It is good only for winter heating.

adaseb

legendary

Activity: 3808

Merit: 1723

Had some time and did some testing with these Tahiti GPU.

Basically XMR-Stak seems to work. The version I used is XMR Aeon Stak 2.5.2 and I found the link in Mattthev signature.

If you got the 7970/280X use intensity 920 and you should get at least 500Hs and up to 550Hs depending on how high your core/engine clock is set. At 1000/1500 you should get close to 500Hs and the GPU shouldn't consume much electricity, around 130Watts or so.

With 7950 with 28 Compute units you will need to lower the intensity a little bit and your speed will be slightly lower.

If you are getting incorrect shares, you will need to lower your memory clock.

Putting these numbers into What to mine with 10 cent power results in a total net profit of nothing. So if you are a die hard hodler or got free or cheaper power, you can mine XMR but for most i think it's time to pack up these GPUs.

Sikkan666

member

Activity: 240

Merit: 11

extremely impressive that cards that came out 2012 still can perform at a pretty decent hash/watt TODAY!.. its friggin 6 years+ they came out now! I started with a few 280/280x/7990s and now runs all nvidia today. But yes, the 7970/280x is legendary cards

_javier_

member

Activity: 444

Merit: 31

Still a manic miner

50 pieces of these monsters GPU (mostly Sapphire VaporX) laying over there. I direct replaced them with 1070s in my rigs.

I heard of the monero fork.. maybe they will come alive again Roll Eyes

afrar

newbie

Activity: 10

Merit: 0

I have 80 pcs for these cards. 30% of cards still brand new ,never used also.

Anyone interested to buy it , contact me

Regards
Abrar

[email protected]
whatsapp +85260327949

almonk

jr. member

Activity: 47

Merit: 1

These cards were holding great value for all these years. Recently there are many rapid developments in mining arena and who knows they might be still useful again.

Privatoria

member

Activity: 352

Merit: 10

My RX280 with Hynix memory gives errors on all miners except for XMRStack, and the speed dropped by half compared to Claymore. It is a pity, but it seems that this card has already outlived its own. Maybe I can use it again if Claymore upgrades his miner.

adaseb

legendary

Activity: 3808

Merit: 1723

Quote from: FloppyPurpleGherkin on October 20, 2018, 04:20:33 PM

Just took the last chunk (18) of my original (56) 280x's offline, These badboys mined everything from LTC, Dash(Darkcoin it was called back in 13-14), a fuck ton of ETH and many more, RIP you little gems, you paid for yourselfs 100,000's times over Wink

Yeah I completely agree.

I never mined BTC with them but a few GPUs i've bought second hand the guy actually mined BTC with them. They were originally released in 2012 so you had a few good months of BTC mining with GPUs and at the time the 7970 was king.

Later I bought them second hand and mined LTC, then Dogecoin, then Dash, then ETH, then ZEC, then XMR and now might be time to shut them off and Craiglist them once the GPU dumping phase passes.

No other GPU has made a profound impact on mining and never will.

RIP!

FloppyPurpleGherkin

jr. member

Activity: 309

Merit: 2

Just took the last chunk (18) of my original (56) 280x's offline, These badboys mined everything from LTC, Dash(Darkcoin it was called back in 13-14), a fuck ton of ETH and many more, RIP you little gems, you paid for yourselfs 100,000's times over Wink

A-Bolt

legendary

Activity: 2317

Merit: 2318

Cryptonight V8
SRBMiner 1.6.8
HD7970 1180/1600
Adrenalin 18.8.1
560 Mh/s

adaseb

legendary

Activity: 3808

Merit: 1723

Quote from: Coindgr on October 18, 2018, 05:14:11 PM

I tried the XMR-Stak 2.5.1 got around 450H with 280x and pc just hangs some times, also no fan adjustment, Claymore was much better in this.

How much you're getting with monero v8 fork?

My results are similiar. Using XRM-Stak 2.4.x or so and I get 400Hs and previously I got 600Hs with V7 Claymore.

These are running at 1000/1500 and undervolted to the max, like 0.95V.

SRBminer I could never get to work. And trying to add another thread on XMR-Stak results in an instant system freeze.

Judging by the temps, the power consumption seems the same.

These results are bad because most Vega and RX GPUs are running at 90% of their V7 speed. We seem to be running at 66% of our V7 speed. And it was already not profitable. So V8 might be the death of the Tahiti.

We had a good run since 2012, but After 7 years it might be time to shut these GPUs off or sell to some low budget gamers who might Crossfire them.

Another option is to mine Ubiq, it should work since the DAG is low. Speeds might be 20-25Mhs however the GPUs will consume over 200Watts each if i recall correctly when I mined ETH back in 2016.

EDIT: Measured the temps with Kill-a-watt tool. And the V8 uses exactly the same power as V7.

Coindgr

hero member

Activity: 1034

Merit: 500

I tried the XMR-Stak 2.5.1 got around 450H with 280x and pc just hangs some times, also no fan adjustment, Claymore was much better in this.

How much you're getting with monero v8 fork?

adaseb

legendary

Activity: 3808

Merit: 1723

Alright giving this thread a BUMP since tomorrow is the XMR fork and the current version of Claymore 11.3 won't be compatible anymore with XMR V8.

I haven't had luck with any of the alternate miners. Basically SRBMiner fails to start and XMR-Stak gets crazy low hashrates and with any tweaking it just crashes the entire rig.

My guess is that I am running the older AMD Drivers 15.12 which causes these issues but would rather get someone else's input before I upgrade to the newer AMD drivers which run poorly on older GPUs.

Wondering if the Tahiti's will still be able to mine XMR V8 at a decent speed and power usage. Since they have a huge memory bandwidth it might still be worth keeping them running.

SBRSAB

newbie

Activity: 5

Merit: 5

I too got 500-600 h/s on all twelve cards before memory timings mod and using two threads. The Hynix MFR timings are really loose by default, the timings I linked to do wonders.

adaseb

legendary

Activity: 3808

Merit: 1723

Quote from: Marvell2 on August 03, 2018, 07:23:10 PM

Quote from: adaseb on August 03, 2018, 06:58:17 PM

Quote from: Marvell2 on August 03, 2018, 04:10:24 PM

Quote from: Privatoria on August 03, 2018, 12:19:14 PM

I’m still using one R9 280 with Frankenstein cooler made from two 120 mm fans. I undervolted this card in the Bios and I’m using it for Monero mining. Unfortunately my card has Hynix memory with bad quality so I have only 500 h/s with 1,013V VDDC, GPU Core 1000 Mhz, Memory 1400 Mhz. GPU_Z shows VDDC power only 30 W. I think it’s not so bad.

yeah i don’t know how ppl claim 700 or even 600 hs with tatiti 7950s and 280s

i get like 450 480 max power usesage is way lower than what people claim though 80 to 100 watts from the wall

What memory do you have? I had bad speeds with Elpida memory. With the Hynix memory I get 600H/S easy.

Quote from: Privatoria on August 03, 2018, 12:19:14 PM

I’m still using one R9 280 with Frankenstein cooler made from two 120 mm fans. I undervolted this card in the Bios and I’m using it for Monero mining. Unfortunately my card has Hynix memory with bad quality so I have only 500 h/s with 1,013V VDDC, GPU Core 1000 Mhz, Memory 1400 Mhz. GPU_Z shows VDDC power only 30 W. I think it’s not so bad.

Is this an R9 280 or an R9 280X? Maybe you got less compute units.

seems like hynix

Which GPU do you have exactly?

Also which software are you using?

What is your engine core clock / memory clock ?

How much system RAM do you have? If you got like 2GB memory you might be getting these issues.

Marvell2

full member

Activity: 1148

Merit: 132

Quote from: adaseb on August 03, 2018, 06:58:17 PM

Quote from: Marvell2 on August 03, 2018, 04:10:24 PM

Quote from: Privatoria on August 03, 2018, 12:19:14 PM

I’m still using one R9 280 with Frankenstein cooler made from two 120 mm fans. I undervolted this card in the Bios and I’m using it for Monero mining. Unfortunately my card has Hynix memory with bad quality so I have only 500 h/s with 1,013V VDDC, GPU Core 1000 Mhz, Memory 1400 Mhz. GPU_Z shows VDDC power only 30 W. I think it’s not so bad.

yeah i don’t know how ppl claim 700 or even 600 hs with tatiti 7950s and 280s

i get like 450 480 max power usesage is way lower than what people claim though 80 to 100 watts from the wall

What memory do you have? I had bad speeds with Elpida memory. With the Hynix memory I get 600H/S easy.

Quote from: Privatoria on August 03, 2018, 12:19:14 PM

I’m still using one R9 280 with Frankenstein cooler made from two 120 mm fans. I undervolted this card in the Bios and I’m using it for Monero mining. Unfortunately my card has Hynix memory with bad quality so I have only 500 h/s with 1,013V VDDC, GPU Core 1000 Mhz, Memory 1400 Mhz. GPU_Z shows VDDC power only 30 W. I think it’s not so bad.

Is this an R9 280 or an R9 280X? Maybe you got less compute units.

seems like hynix

Topic: AMD Tahiti GPUs (Radeon 7950 / 7970 / 280X / 7990 ) Owners Appreciation Thread - page 4. (Read 16200 times)