S19J Pro+ VS S19XP's

[Saskfarmer]

We've got another small spot that can handle 50 miners or so.   Its at 480/277 though and the S19J Pro+'s would plug right in and would cost very little infrastructure to speak of.

Yet I'm really struggling with buying miners at 27.5J/T vs the 21.5 for the XP's. 

My gut is telling me at the rate of difficulty adjustment for all this fucking hash that keeps coming out of the woodwork that you better be at 21.5 or better or your just going to get squeezed out.

Anyone put any spreadsheets together proving it?    Sure bitcoin blasts off who cares but I'm just not feeling it.

[philipma1957]

We've got another small spot that can handle 50 miners or so.   Its at 480/277 though and the S19J Pro+'s would plug right in and would cost very little infrastructure to speak of.

Yet I'm really struggling with buying miners at 27.5J/T vs the 21.5 for the XP's.  

My gut is telling me at the rate of difficulty adjustment for all this fucking hash that keeps coming out of the woodwork that you better be at 21.5 or better or your just going to get squeezed out.

Anyone put any spreadsheets together proving it?    Sure bitcoin blasts off who cares but I'm just not feeling it.

does new firmware for the 122th s19j pro + exist and does it drop power to 23?

or is it in place and 27 is as low as it goes.

also will xp's come out with 18 watt firmware.

the issue is the 122t j pro+ could end up at 27 and the xp ends up at 18

that would be huge. unless your power is 2-4 cents.

xp is 2x the cost of the j pro +

[yoshimitsu777]

regardless the electricity cost which one is considered better and worth its money
S19J pro or S19 XP?

[kano]

The topic question isn't a spreadsheet, it's a guessing competition.

What will diff be in X months? No one knows.
How much hardware is being built and sold to market in X months? No one knows.

What will the price of BTC be in X months? No one knows.

So really, the only things you can know is: lower J/TH and lower c/kWhr will mean longer lasting with a profit margin.
How much longer? No one knows. So you may be able to survive on higher J/TH or higher c/kWhr for an unknown period of time.

Anything else is a guess that, if anyone claims they know, they are bullshitting you.

[mikeywith]

regardless the electricity cost which one is considered better and worth its money
S19J pro or S19 XP?

The word better is subjective, is Michael Jordan better than Mohamed Ali? As far as basketball is concerned yes, is S19xp more efficient than S19j pro, yes, but is it cheaper? no, does it have a faster ROI? For some people, S9 is better than the S19 XP, because again that's basketball vs boxing, I agree with most of what Kano said, there is a dozen of an unknown factor, if it was a simple guess then everyone would be buying the same gear and the other gear with collect dust in Bitmain's warehouse.

Since you can't control and don't even know what the future is going to look like, your best bet is to account for a certain difficulty increase, assume every mining gear will die on you in 2-3 years, and then make some simple math that takes into account your power rate and the cost of the miner, you will be surprised that S19j pro might end up being "better" than S19 XP contrary to what most people think just by looking at the W/TH.

[philipma1957]

in this case there has been evidence the 122th s19j pro+ has glued on heatsinks not bolted on.

Do not buy them they will break like the s17 pros used to break.

https://bitcointalk.org/index.php?topic=5449809.msg62133355#msg62133355

soldered on heat sinks break a lot.