Ethereum 30% hashrate drop for RX400/RX500 incoming soon?

[Termie]

found this: Ethereum mining: hashrate drop for Radeon RX400/RX500 GPUs incoming
Only RX cards are affected, not the older ones like 290x. Also Nvidia Pascal seems to be on the safe side...

[ivanst776]

found this: Ethereum mining: hashrate drop for Radeon RX400/RX500 GPUs incoming
Only RX cards are affected, not the older ones like 290x. Also Nvidia Pascal seems to be on the safe side...

Not a good news, this demotivate me which I just bought a rig and spent thousands of dollars in that stuff.

When will this hashrate drop going to happen? This cuts off the profit a lot and makes the ROI to be reached longer than I expected!!!

[ChrisCollins322]

Yeah, u know when the new versions are announcing, previous is losing some value

[EastSound]

found this: Ethereum mining: hashrate drop for Radeon RX400/RX500 GPUs incoming
Only RX cards are affected, not the older ones like 290x. Also Nvidia Pascal seems to be on the safe side...

Is that true? I hope there will not be big change.

[no1blue]

Any confirmation yet

Damn I just bought a rig

[Mattthev]

Can anybody here use search? The topic is already here even with benchmarks...

[Vaccinus]

just switch to nvidia, it's a better deal anyway now, with far better option, not only ETH, you can min e LBRY and equihash algo with better hashrate when ETH will go pos, i wonder if the new vega will be affected too by this one

[ChrisCollins322]

Aggree with the previous post, nvidia more stable

[nils8107]

Bad news indeed.

Lucky I`m running 8X GTX 1070 cards.
But mining ETH will not be profitable much longer I guess.
Maybe switch to other currency.

[adaseb]

Think about it this way.

You are better off buying AMD RX right now even with these small hashrate drops than you are buying NVIDIA right now which doesn't have this issue.

Because by the time the hashrate drops 30%, most of us won't be mining anymore.

Its better making $6/day NOW but paying half for a GPU than making a similiar amount but paying double for the NVIDIA GPU.

Because by the time you ROI that NVIDIA we all will be making $0.25/day with our GPUs and the hashrate drop won't mean much.

But the AMD people will come out ahead since the GPU was paid for multiple times and not the NVIDIA people.

[Bothebu]

Think about it this way.

You are better off buying AMD RX right now even with these small hashrate drops than you are buying NVIDIA right now which doesn't have this issue.

Because by the time the hashrate drops 30%, most of us won't be mining anymore.

Its better making $6/day NOW but paying half for a GPU than making a similiar amount but paying double for the NVIDIA GPU.

Because by the time you ROI that NVIDIA we all will be making $0.25/day with our GPUs and the hashrate drop won't mean much.

But the AMD people will come out ahead since the GPU was paid for multiple times and not the NVIDIA people.

Where are you going to get an AMD RX for half the price of an nVidia card?   The main vendors (amazon, newegg and bhphoto) are already gouging on the price on 1070's a bit.  When the AMD cards hit the "shelves" they are going to be priced substantially higher because these companies know what they are being used for and know that people are going to pay the price to get them. 

[ChrisCollins322]

Same things happens in Russia, the price of most powerful GPU rise for about 20-30% cause of mining popularity

[Denopoly]

....as my new rx580 are coming...if it gets bad is it a good idea to maybe switch to zcash?

[Vann]

....as my new rx580 are coming...if it gets bad is it a good idea to maybe switch to zcash?

The RX 580 will do ~315 H/s on ZEC. The Claymore epoch benchmark figures are just an estimate and largley overstated. In my own test with a five card RX 480/580 8GB and 570 4GB rig. The benchmark at epoch 129 for the five cards was ~143.3 MH/s, at epoch 130 the benchmark was ~142.5 MH/s. The actual current dual mining hash is ~144.1 MH/s dual mining with DCR. Even a 10% drop in the RX cards ETH hash in 6 months can be offset by addding a single $200 RX 570 4 GB card.

[Yautas]

Think about it this way.

You are better off buying AMD RX right now even with these small hashrate drops than you are buying NVIDIA right now which doesn't have this issue.

Because by the time the hashrate drops 30%, most of us won't be mining anymore.

Its better making $6/day NOW but paying half for a GPU than making a similiar amount but paying double for the NVIDIA GPU.

Because by the time you ROI that NVIDIA we all will be making $0.25/day with our GPUs and the hashrate drop won't mean much.

But the AMD people will come out ahead since the GPU was paid for multiple times and not the NVIDIA people.

The 30% drop will happen in 20-30 EPOC, so that is just 5 months. I think ETH can still be mined then.

[iamnewhere]

The RX 580 will do ~315 H/s on ZEC. The Claymore epoch benchmark figures are just an estimate and largley overstated. In my own test with a five card RX 480/580 8GB and 570 4GB rig. The benchmark at epoch 129 for the five cards was ~143.3 MH/s, at epoch 130 the benchmark was ~142.5 MH/s. The actual current dual mining hash is ~144.1 MH/s dual mining with DCR. Even a 10% drop in the RX cards ETH hash in 6 months can be offset by addding a single $200 RX 570 4 GB card.

Where does the huge difference on ZEC mining coming from between 1070 and rx580?
At ETH a GTX 1070 has similar MH/s than the RX580 but at ZEC it has 50% more (~ 480 Sol/s). From gaming perspective they are also very similar from performance.

And yes, this is a serious question as i'm interested in technical details due to my work in IT business

[Vann]

The RX 580 will do ~315 H/s on ZEC. The Claymore epoch benchmark figures are just an estimate and largley overstated. In my own test with a five card RX 480/580 8GB and 570 4GB rig. The benchmark at epoch 129 for the five cards was ~143.3 MH/s, at epoch 130 the benchmark was ~142.5 MH/s. The actual current dual mining hash is ~144.1 MH/s dual mining with DCR. Even a 10% drop in the RX cards ETH hash in 6 months can be offset by addding a single $200 RX 570 4 GB card.

Where does the huge difference on ZEC mining coming from between 1070 and rx580?
At ETH a GTX 1070 has similar MH/s than the RX580 but at ZEC it has 50% more (~ 480 Sol/s). From gaming perspective they are also very similar from performance.

And yes, this is a serious question as i'm interested in technical details due to my work in IT business

I think it has to do with memory clocks on the cards. AMD RX 580 clocks top out at ~2100 MHz, while Nvidia clocks run at more than 5000 MHz.

[iamnewhere]

I think it has to do with memory clocks on the cards. AMD RX 580 clocks top out at ~2100 MHz, while Nvidia clocks run at more than 5000 MHz.

so ETH requires more the core clock which is close between the cards, ZEC uses both (core + memory) and there Nvidia comes in advantage because of high memory clock.
wondering if some miners could be optimized for core that AMD cards can raise their S/s.

[Vann]

I think it has to do with memory clocks on the cards. AMD RX 580 clocks top out at ~2100 MHz, while Nvidia clocks run at more than 5000 MHz.

so ETH requires more the core clock which is close between the cards, ZEC uses both (core + memory) and there Nvidia comes in advantage because of high memory clock.
wondering if some miners could be optimized for core that AMD cards can raise their S/s.

Actually ETH runs better with a lower core clock speed compared to ZEC. It also must be something about the difference in memory architecture. My MSI 1080 Gaming X will do ~560 H/s on ZEC, but only ~25 MH/s on ETH. The difference is the 1080's use GDDR5X, while the 1070's use GDDR5 like the RX 580. The 1070's also run at a higher core clock compared to the RX 580's.

[deadsix]

I think it has to do with memory clocks on the cards. AMD RX 580 clocks top out at ~2100 MHz, while Nvidia clocks run at more than 5000 MHz.

so ETH requires more the core clock which is close between the cards, ZEC uses both (core + memory) and there Nvidia comes in advantage because of high memory clock.
wondering if some miners could be optimized for core that AMD cards can raise their S/s.

Actually ETH runs better with a lower core clock speed compared to ZEC. It also must be something about the difference in memory architecture. My MSI 1080 Gaming X will do ~560 H/s on ZEC, but only ~25 MH/s on ETH. The difference is the 1080's use GDDR5X, while the 1070's use GDDR5 like the RX 580. The 1070's also run at a higher core clock compared to the RX 580's.

ZEC is core count and speed dependent so Nvidia does better at it. ETH is memory bandwidth and speed dependent and so AMD's lower core count/speed does not impact it much.  The memory numbers you see reported as 7000 or 8000mhz are just 4x of the actual memory clocks of 1750-2000mhz. Both AMD and NVIDIA use essentially the same GDDR5 memory - similar chips similar clocks.