Topic: Claymore's ZCash/BTG AMD GPU Miner v12.6 (Windows/Linux) - page 180. (Read 3839201 times)

Tonga cards have a 256-bit memory bus, not 384.  If you are referring to the fact that the GPU die supports a 384-bit bus, even if you could enable the extra two memory controllers, those bus lines aren't even connected to the package.

No they aren't

Who knows ? when AMD VEGA cards go?

Now, this is technical and i'm out of my element, but the Tonga cards should be able to workout 384-bit mem bus, problem is, after a bit of discussion i found out, you would have to pretty much write a bios from scrap, but, theoretically remove that bottleneck giving a 50% increase in performance, the 380x would suffer less if there are any bottlenecks, and the memory straps could also be modded in the way that certain ETH mods gave hashrates of 25+/s (mind you with wild results with regard to heat and stability the higher you went)

Basically, Radeon release the R9 285 at a strange time, and it was the first GCN 1.2, and only i believe, but they couldn't have it be too good as to remove from their 290/390s or the fijis they planned to release a few months later, as well as the 16nm stuff (RX series) So in theory the 380 is capable of a lot more, but AMD settled on a theoretical number they felt would be good for their entire line, and so the 285 meant to have 32 CUs had 4 of them locked,1/3 of it's memory bus knocked, put on PCBs meant to take their mediocre power draws and heat output. Honestly if they went full-pin and made a flagship with it, it would have fallen somewhere fiji and hawaii, closer to fiji. I'm sure they tested it too, but it was just good business.

time to release new version??? 

At least for GCN 3 devices (like Tonga), ethminer is within 1-2% of the memory read performance limit of the cards.  GCN assembler won't make it any faster for those cards.
Plus with the profitability of eth mining to drop significantly in the next few months, miner developers are generally not interested in doing more work into eth.

Does that mean that the eth miner and also xmr miner will get a boost?
What about rx support at xmr? Still get sometimes the fan bug.

I here that I have gigabyte 270s that I have maxed out the clocks on since litecoin was gpu minable and there still working there a$$ off

Claymore. I dont know what is your real Job (if there is). But many students at my school would need a good teacher for programming "real" applications!
We're tired making HelloWorld in 8 different languages! We want to make profit!


Keep up the good work! Cant wait to see 500sols on my RX480

I don't mind the delay. We all appreciate the work you do. Glad you found improvement with assembler.

Thanks Claymore!

Is it still there are masochists who are struggling with Linux? 

King, Tahiti GPU is started in 2011. Since then, my 3 x 7950 reference graphics cards working non - stop overclocked to 1075 MHz for the GPU (default clock is 840 MHz). It is for 6 years (2011-2017). Also my 7970 SAPPHIRE VAPOR-X works also overclocked to the maximum - 1100 MHz. The same is true for the 6 x RX480 and  2 x nVIDIA GTX1070. Stories of shortening working life it is stories for toddlers and pussy. Provide superior power supply, adequate cooling and other high-end components and do not be afraid .

The only difficulty I have is GCN assembler. I've spent a lot of time to create efficient environment for development in asm, that's the only reason of the delay. It's one-time delay related to all my miners, now I see that with assembler I can improve them all.

419h/s even 424h/s is possible for r9 390x i think the new version from claymore can maybe hit these peaks with overclocks and a stable one from 410 - 415 h/s
Already in v11.1 two of my cards in de rig have going to this peaks when i was uploading a program on my pc the disk load on my pc was going to 100% in task manager and when i on that moment looked at the miner 2 card where rising to 419 h/s i need say there are more rejects at that moment. When the uploading was done and the disk load in task manager was back on 3% 5% again the cards where back on 380 h/s with less rejects. So i think it is possible to get them stable in a version with these statics and no rejects but like we all see it takes alot off time for a higher stable level

+1

I would have to agree with you on all parts of that statement.

Use bios Saphire 7970 vapor-x 150.037  250 sol no overclock.
use the same bios for r9 280x vapor-x downgrade for 250 sol lol. Hynix only. elpida 210 sol max ? bios 15.042 ??
overclock is not possible on system. asrock 970 extreme 4?? only instal 1 gpu possible.  i use 5 gpu

https://www.techpowerup.com/vgabios/151332/sapphire-hd7970-3072-130711

I would take it that Claymore is having difficulty getting to the current performance of Optiminer v1.6, and he doesn't want to release an update until he achieves that. Folks that are waiting around for Claymore to measurably exceed Opti v1.6 are dreaming. Miner optimization doesn't just go on achieving improvements forever; at some point you've gotten as much as you're going to get. I think that point has arrived, for the most part.

Surprised Claymore hasn't released an update yet. This new unreleased version must be a good one!  😀

I think there's room for more improvement on Hawaii, but for R9 and Rx cards (with 4 memory controllers) Optiminer is close to the limit.