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I wonder about Ryzen's new SHA1/SHA256 instructions, not only for Bitcoin but also things like SHA1 collisions.
by yuhong 9y ago
I wonder about Ryzen's new SHA1/SHA256 instructions, not only for Bitcoin but also things like SHA1 collisions.
- mschuster91 9y agoHmm. In contrast to a GPU / ASIC implementation, where thermal load is spread equally across the die, I'd guess that coin-mining usage levels will lead to local overheating and thus throttling - or worse, if there's no thermal sensor for this area, even permanent damage.
- ryan-c 9y agoIntel's chips have those too - but I highly doubt the speedup will provide even close to gpu power efficiency.
- mrb 9y agoAMD's and Intel's SHA256 instructions are utterly useless to compete with ASICs: they use approximately 10 000 times more energy (4 orders of magnitude!) than a 16nm Bitcoin mining ASIC per hash: 1000 J/GH vs 0.1 J/GH. Source: I wrote one of the first GPU miners, founded a Bitcoin mining ASIC system integrator company, etc.
- le-mark 9y agoFrom your perspective, how should an individual with a non trivial sum of money ($20k for example) get started mining BTC? Do you favor mining or investing by purchasing?
- literallycancer 9y agoIt's probably not economical to compete with large mining operations as an individual, since they get much more favorable deals on electricity.
- mrb 9y agoLarge professional miners spend on average $0.05/kWh on their mining ventures, including all other non-electrical overheads. So as a small miner with virtually zero overhead, you should only mine if your electricity cost you $0.05/kWh or less. If you do, buy an Antminer S9. But personally I prefer simply investing in BTC.