Um, tell that to the customers screwed by AMT/Bitmine.ch over the A1 kerfuffle when it was introduced. Inno's A1 failing to meet design specs cost us final customers 100's of k$ in total or more. For most folks it looks like their money is never to be seen again as the lawsuits are in limbo. And ja Bitmine.ch's horrible board design was the icing on the crap cake.
BirFury, Bitmain, et al care very much about spec as that is what they base their miner designs on, eg how many chips in it running what speed will give us advertised throughput/power usage.
Sure miner chips are vastly simpler than the various processors used in mobile devices. Just simple I/O, bit of memory, coms and the SHA256 cores vs hundreds of I/O and scads of different core components including critical L1/2/3 cache memory. That simplicity should in turn give more good chips vs yield from making mobile processors and their ilk.
You are just projecting your misfortune. I'll repeat specifications are worth nothing without the appropriate contract enforcement mechanisms, either legal like https://en.wikipedia.org/wiki/Letter_of_credit or extralegal like BirFury, Bitmain, et al care very much about spec as that is what they base their miner designs on, eg how many chips in it running what speed will give us advertised throughput/power usage.
Sure miner chips are vastly simpler than the various processors used in mobile devices. Just simple I/O, bit of memory, coms and the SHA256 cores vs hundreds of I/O and scads of different core components including critical L1/2/3 cache memory. That simplicity should in turn give more good chips vs yield from making mobile processors and their ilk.
.Both Bitfury and Spondoolies have history of not meeting the predicted specifications. But for them and their customers things worked out because they had the right mixture of business and technical skills. I already wrote about Bitfury, so I'm just going to mention that Spondoolies did things like refunds for underperformance and advised customers to use hair dryers to warm up miners that wouldn't start in the cold climates.