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Topic: Any results for RX 6900 XT ? - page 2. (Read 1408 times)

sr. member
Activity: 381
Merit: 251
December 10, 2020, 11:44:01 AM
#32
Even BBT can not replicate it.
sr. member
Activity: 2142
Merit: 353
Xtreme Monster
December 10, 2020, 06:39:22 AM
#31
keep in mind that you can use 2 instances per card if you have a amd 5000 series cpu and mine in windows with sam enabled. this guy in the video already mined with a 6800 with 80 mhash. if there is some tweaking done we should get results as the nvidia 3080. unless the dag file fits the memory twice....



not sure about that, nobody that i have seen was able to replicate it, do you have any links besides bbt?
newbie
Activity: 64
Merit: 0
December 10, 2020, 05:35:25 AM
#30
keep in mind that you can use 2 instances per card if you have a amd 5000 series cpu and mine in windows with sam enabled. this guy in the video already mined with a 6800 with 80 mhash. if there is some tweaking done we should get results as the nvidia 3080. unless the dag file fits the memory twice....

sr. member
Activity: 2674
Merit: 328
December 10, 2020, 04:38:43 AM
#29
i dont understand 1 thing. mining is all about compute power right? 6900 has twice more compute power than 5700 then.it suppose to be at least 100mhs. i dont understand it.
Minins ETH is very dependant to memory bandwith and memory latency...

The 6800/6900 have a bandwith just around 10% more than 5700. The remaining question if the impact of the infinity cache: due to its small size relatively to the DAG size of ETH, it should have a minimal impact on ETH mining.
ok then why radeon 7 has : 1,024 GB/s bandwith performing worse than 3080 which has less memory bandwith: 760.3 GB/s .


Because it uses HBM2, which is underperforming, maybe because of technology, or maybe because miner devs are underutilizing it

Radeon Fury also uses HBM and despite having twice the bandwidth of RX580, barely beats it in ethash mining
legendary
Activity: 1510
Merit: 1003
December 10, 2020, 04:05:30 AM
#28
i dont understand 1 thing. mining is all about compute power right? 6900 has twice more compute power than 5700 then.it suppose to be at least 100mhs. i dont understand it.
Minins ETH is very dependant to memory bandwith and memory latency...

The 6800/6900 have a bandwith just around 10% more than 5700. The remaining question if the impact of the infinity cache: due to its small size relatively to the DAG size of ETH, it should have a minimal impact on ETH mining.
ok then why radeon 7 has : 1,024 GB/s bandwith performing worse than 3080 which has less memory bandwith: 760.3 GB/s .


Both bandwith and core are used for ETH: for radeon VII, it is probably limited by core computation, for RX 6900 xt, it is mostly limited by bandwith.

For RTX 3080: you should downclock the core at around 1200-1300 mhz (to decrease power consumption almost without losing hashrate) and overclock memory at +1000mhz (around equivalent 10000mhz or more) to have the highest hashrate. Therefore you can conclude that this card is more bandwith limited for ETH mining than compute limited.

RX 5700  is well balanced for ETH mining between compute power and memory bandwith.


hehe could very nice card if there was 3080 chip with radeon 7 memory Smiley
very nice if there was 6800 chip with radeon 7 memory )) And it exists ... but only as special very expensive compute card
member
Activity: 1208
Merit: 27
December 10, 2020, 03:42:55 AM
#27
i dont understand 1 thing. mining is all about compute power right? 6900 has twice more compute power than 5700 then.it suppose to be at least 100mhs. i dont understand it.
Minins ETH is very dependant to memory bandwith and memory latency...

The 6800/6900 have a bandwith just around 10% more than 5700. The remaining question if the impact of the infinity cache: due to its small size relatively to the DAG size of ETH, it should have a minimal impact on ETH mining.
ok then why radeon 7 has : 1,024 GB/s bandwith performing worse than 3080 which has less memory bandwith: 760.3 GB/s .


Both bandwith and core are used for ETH: for radeon VII, it is probably limited by core computation, for RX 6900 xt, it is mostly limited by bandwith.

For RTX 3080: you should downclock the core at around 1200-1300 mhz (to decrease power consumption almost without losing hashrate) and overclock memory at +1000mhz (around equivalent 10000mhz or more) to have the highest hashrate. Therefore you can conclude that this card is more bandwith limited for ETH mining than compute limited.

RX 5700  is well balanced for ETH mining between compute power and memory bandwith.


hehe could very nice card if there was 3080 chip with radeon 7 memory Smiley
sr. member
Activity: 445
Merit: 255
December 10, 2020, 03:36:52 AM
#26
i dont understand 1 thing. mining is all about compute power right? 6900 has twice more compute power than 5700 then.it suppose to be at least 100mhs. i dont understand it.
Minins ETH is very dependant to memory bandwith and memory latency...

The 6800/6900 have a bandwith just around 10% more than 5700. The remaining question if the impact of the infinity cache: due to its small size relatively to the DAG size of ETH, it should have a minimal impact on ETH mining.
ok then why radeon 7 has : 1,024 GB/s bandwith performing worse than 3080 which has less memory bandwith: 760.3 GB/s .


Both bandwith and core are used for ETH: for radeon VII, it is probably limited by core computation, for RX 6900 xt, it is mostly limited by bandwith.

For RTX 3080: you should downclock the core at around 1200-1300 mhz (to decrease power consumption almost without losing hashrate) and overclock memory at +1000mhz (around equivalent 10000mhz or more) to have the highest hashrate. Therefore you can conclude that this card is more bandwith limited for ETH mining than compute limited.

RX 5700  is well balanced for ETH mining between compute power and memory bandwith.
member
Activity: 1208
Merit: 27
December 10, 2020, 03:14:37 AM
#25
i am very disappointed. i was waiting big speed from AMD new cards.  Sad
member
Activity: 1208
Merit: 27
December 10, 2020, 03:12:43 AM
#24
i dont understand 1 thing. mining is all about compute power right? 6900 has twice more compute power than 5700 then.it suppose to be at least 100mhs. i dont understand it.
Minins ETH is very dependant to memory bandwith and memory latency...

The 6800/6900 have a bandwith just around 10% more than 5700. The remaining question if the impact of the infinity cache: due to its small size relatively to the DAG size of ETH, it should have a minimal impact on ETH mining.
ok then why radeon 7 has : 1,024 GB/s bandwith performing worse than 3080 which has less memory bandwith: 760.3 GB/s .
sr. member
Activity: 445
Merit: 255
December 10, 2020, 02:49:54 AM
#23
i dont understand 1 thing. mining is all about compute power right? 6900 has twice more compute power than 5700 then.it suppose to be at least 100mhs. i dont understand it.
Minins ETH is very dependant to memory bandwith and memory latency...

The 6800/6900 have a bandwith just around 10% more than 5700. The remaining question if the impact of the infinity cache: due to its small size relatively to the DAG size of ETH, it should have a minimal impact on ETH mining.
member
Activity: 1208
Merit: 27
December 10, 2020, 12:18:04 AM
#22
i dont understand 1 thing. mining is all about compute power right? 6900 has twice more compute power than 5700 then.it suppose to be at least 100mhs. i dont understand it.
jr. member
Activity: 76
Merit: 3
December 09, 2020, 03:45:18 PM
#21
In the livestream, he was thinking maybe with enhanced drivers + miner support, the 6900s could run multiple mining instances - would be interesting
newbie
Activity: 51
Merit: 0
December 09, 2020, 10:06:07 AM
#20
just the normal 65 the 83MH was a bug he couldnt replicate.
You're thinking of the 6800xt, the 6900xt does 87 stock. look at my previous post.

You have to be some kind of stupid to think a 6900xt is doing 87stock.  As I said before it was a bug he couldnt replicate.

Seriously? Don't resort to name calling for no reason, I stated what I saw, posted my sources and because I didn't have the hardware to test it myself I took what he said at face value.  You have to be some kind of stupid to think that you're smarter than everyone else because you're posting on a forum. Done with this community and it's followers, y'all toxic af.
legendary
Activity: 2828
Merit: 1497
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December 09, 2020, 04:58:32 AM
#19

BBT just did a video, looks like barely optimized hits 89!

links please.

Full video:
https://www.youtube.com/watch?v=nMYRXrE2yhw

I jumped in the tail end of the stream while it was still in progress but the results of their test was what really interested me and not the gaming performance of these cards. Smiley
legendary
Activity: 2828
Merit: 1497
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December 09, 2020, 04:46:58 AM
#18
just the normal 65 the 83MH was a bug he couldnt replicate.
You're thinking of the 6800xt, the 6900xt does 87 stock. look at my previous post.

You have to be some kind of stupid to think a 6900xt is doing 87stock.  As I said before it was a bug he couldnt replicate.
During the livestream done last night having the two 6900xt in the see thru case on the test bench, he mentions amd drivers are causing issues with the mining and it is not stable at these numbers given for any amount of time.
Sound familiar from the previous gen cards a year ago? Gamers complaining their 5700xt would give a black screen in the middle of game play. Multiple driver updates later, amd had finally fixed the problem and so the 5700 line of cards were stable enough to game on thus stable enough to mine with going full boar 24/7.

Side note, he says if these cards were to work at a good 80-90 mh/s then they would with some amount of 'trickery' involved possibly with the infinity cache or whatever it is causing the dual streams.
He stated he will eventually have it running on a pool and provide the mining pool address so everyone will be able to follow it's progress for themselves once it is stable enough to do so.
sr. member
Activity: 381
Merit: 251
December 09, 2020, 01:40:29 AM
#17
But if 6900 XT is able to get that with it's 256-bit memory interface, then how much will 3060 Ti be able to do with the same type of memory and interface.


I'm just wondering ... why the bugs always happen to BBT and then he can't reproduce?

I don't know its weird, but if you watch the youtube stream you can see it doesnt break 65MH and the power draw is kind of nuts making the 5XXX and 3060Ti the best options currently.  My guess is the 6XXX is crippled by drivers and he's able to get a glimpse at what i should be able to do with a bug in the drivers.
full member
Activity: 1125
Merit: 136
December 09, 2020, 01:24:29 AM
#16
I'm just wondering ... why the bugs always happen to BBT and then he can't reproduce?

I don't know its weird, but if you watch the youtube stream you can see it doesnt break 65MH and the power draw is kind of nuts making the 5XXX and 3060Ti the best options currently.  My guess is the 6XXX is crippled by drivers and he's able to get a glimpse at what i should be able to do with a bug in the drivers.
sr. member
Activity: 2142
Merit: 353
Xtreme Monster
December 09, 2020, 01:22:23 AM
#15
I'm just wondering ... why the bugs always happen to BBT and then he can't reproduce?

That is a good question, it reminds me of some people posting rx 580 doing 45 mhs plus and scamming people with said magical bios mod.
sr. member
Activity: 381
Merit: 251
December 09, 2020, 01:16:56 AM
#14
I'm just wondering ... why the bugs always happen to BBT and then he can't reproduce?
sr. member
Activity: 2142
Merit: 353
Xtreme Monster
December 09, 2020, 01:11:54 AM
#13
just the normal 65 the 83MH was a bug he couldnt replicate.
You're thinking of the 6800xt, the 6900xt does 87 stock. look at my previous post.

1 video showing 87 and other videos showing 65, on the video that showed 87, the guy got just one time, failed other attempts, must have been a bug or some sort.

https://www.youtube.com/watch?v=nMYRXrE2yhw

You have to be some kind of stupid to think a 6900xt is doing 87stock.  As I said before it was a bug he couldnt replicate.

That is called desperation, they want it to do 87 and if you say it was a bug, it can't do, they deny reality, reality hurts them.
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