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Topic: Drop of hashrate for Polaris cards incoming - page 8. (Read 13939 times)

member
Activity: 242
Merit: 11
... it seems you all don´t get it:

You can´t escape the difficulty bomb !

Do your own research or cry later !

 Cool

This has nothing to do with the diff bomb. This has to do with the hardware architecture of the cards. The reason it started now is because DAG size is over 2GB. In a simplified manner, you could see it as part of DAG now physically ending up on a different IC. This causes the memory controller to switch the IC it reads from more often. The larger the DAG, the bigger the part of the DAG that ends up on a different IC, the more switching it has to do.     

Hats off to AMD for making trash cards once again.
sr. member
Activity: 438
Merit: 250
... it seems you all don´t get it:

You can´t escape the difficulty bomb !

Do your own research or cry later !

 Cool

This has nothing to do with the diff bomb. This has to do with the hardware architecture of the cards. The reason it started now is because DAG size is over 2GB. In a simplified manner, you could see it as part of DAG now physically ending up on a different IC. This causes the memory controller to switch the IC it reads from more often. The larger the DAG, the bigger the part of the DAG that ends up on a different IC, the more switching it has to do.     
sr. member
Activity: 391
Merit: 250
aka ...
... it seems you all don´t get it:

You can´t escape the difficulty bomb !

Do your own research or cry later !

 Cool
member
Activity: 242
Merit: 11
Im selling my 480's and 580's for 1070s! $400 each easy on eBay, and an excellent upgrade.
sr. member
Activity: 966
Merit: 359
👉MINING-BIOS.eu💲⛏
What's with tongas?
Run the benchmark, but mostly affected are Polaris cards.
full member
Activity: 430
Merit: 100
Damn, 8GB Models aswell? This is big..
hero member
Activity: 2548
Merit: 626
What's with tongas?
member
Activity: 242
Merit: 11
It`s the Rx 470,480,570,580 4GB GPU`S that will be affected not the 8GB versions.

Wrong, 8GB versions are affect all the same. Better start selling your AMD cards for max profit and switch over to Nvidia, which doesn't have any issue.

Check the top comment : https://www.reddit.com/r/EtherMining/comments/6i1ulz/incoming_hashrate_drop_for_rx_400_and_500_cards/
sr. member
Activity: 391
Merit: 250
aka ...
Hi Folks,

Etherium has activated the difficulty bomb
on the way to POS (will affect all cards/miners).

Maybe you can read about it here (german):

https://bitcoinblog.de/2017/05/30/ethereum-der-winter-naht/

This, btw. is also the reason, why ETH will never take the place of BTC ^^

 Grin
newbie
Activity: 29
Merit: 0
It`s the Rx 470,480,570,580 4GB GPU`S that will be affected not the 8GB versions.
member
Activity: 242
Merit: 11
Thank God I went Nvidia, fully justified. Nvidia always comes out on top one way or the other.

As soon as RX cards go the 7950/7970 way (13 mhs or lower) you'll see all Nvidia stock dry up for 1050ti, 1060 and 1070.
full member
Activity: 223
Merit: 100
Don't really think most of us will mind this small increase when the difficulty is doubling every 30 days and in 45 days the block times are going be double. So losing 1MH/s won't really be that much when the difficulty quadruples anyways.

So now you believe me Smiley 29-22 drop is not really a 1mh but anyway, where can i read about blocktime increase?
legendary
Activity: 3808
Merit: 1723
Don't really think most of us will mind this small increase when the difficulty is doubling every 30 days and in 45 days the block times are going be double. So losing 1MH/s won't really be that much when the difficulty quadruples anyways.
full member
Activity: 215
Merit: 100
can you run the benchmark for 290s?
newbie
Activity: 45
Merit: 0
R9 290 390 is good, however they do use 2 or 3 times of power compared to the RX 4 and 5 series, while dual mining.
I have several R9 390, just thinking sell them while the price is high, as they use too much fuel
full member
Activity: 215
Merit: 100
http://cryptomining-blog.com/8822-ethereum-hashrate-drop-for-radeon-rx400rx500-gpus-is-incoming/

I didn't believe the news so I tested it myself.

The news is true.
Just tried it now on my 580 aorus, which to clarify is an 8 GB model.
My settings are:
-ubermix timings
-2195 mhz memories
-1165 mhz core
Epoch 130: 30.2 MH/s Epoch 140: 27.6 MH/s Epoch 150: 23.5 MH/s
I'd be really curious if somebody could run the test on a different cards.
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