2021-03-17


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Worthy

  • Intel's Rocket Lake CPU shouldn't have been made - SemiAccurate

    Lets start our look at Rocket Lake with the good stuff. The complete list of up-sides SemiAccurate sees for this new Intel backport of a 10nm design is that it is officially out. The end. We really wanted to find something good about this CPU even if our initial technical assessment said it was unlikely. After the rather solid pre-briefing, the basic questions SemiAccurate asked were either dodged or ignored, and things went downhill from there, it was another string of own-goals for no potential up side.

    Intel claims the i7-11700K that Anandtech tested is a 125W TDP CPU but they measured 294W in one test, a number which you could be forgiven for not considering close to the advertised spec.

    To make matters worse, the die is absolutely huge, 270+mm^2 or so according to reliable sources vs 206.1 or so for the previous Comet Lake CPU. (Note 2: Intel refuses to disclose die sizes for not good reason)

    What it comes down to is Intel took a 10nm design that was not intended to be process portable and backported it to their 14nm process. Those massive energy use reductions and claimed 2.7x die shrinks work both ways, think 2.7x die area gain and sucking wattage like it was going out of style. Backporting Ice Lake’s CPU and GPU cores to 14nm is just stupid, there is no defense for it at all and the results speak for themselves. Intel should not have done this and the fact that those who greenlighted this turkey are still employed at the company is a bit shocking.

  • The Rise of Touch Screens in Cars Explained

  • The ancient fabric that no one knows how to make - BBC Future

  • Illegal Content and the Blockchain - Schneier on Security

    • from comments:

    I found the way the data is stored in the ledger, it abuses the bitcoin addresses. The bits are cut up in bitcoin address size chunks and these are then entered as the outgoing addresses for a transaction. The limit is 100,000 bytes per transaction, which is considerable. A miner can use a complete block of 1 MB. You collect all the (fake) addresses and can reconstruct the original file from the bits. As the addresses are fake, the ingoing bitcoins become unspendable.

etc


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