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Delidded Intel I9-14900KS CT Scan
- phire 21d agoI was not expecting the CT scan to be able to identify the cores within the die. But now I think about it, the metal layers (especially traces carrying power) are probably think enough, and different enough to show up. And even just power distribution is enough for the shape of the cores to be visible.
- userbinator 21d agoYou don't even need a CT to identify the cores; they are already quite obvious in regular die photos as repeated areas. https://commons.wikimedia.org/wiki/File:Intel_Core_i9-13900K_Labelled_Die_Shot.jpg https://commons.wikimedia.org/wiki/File:Intel_Core_i9-13900K...
- xpct 21d agoYou can typically see the L1/L2 SRAM cache regions just by looking for continuous patterns, then try to divide it into the number of cores or core groups you're looking for.
- jaen 20d agoThis is only applicable to die photographs of the silicon layer. For CT scans, which use X-rays, the visible structure is very likely due to the metallic (copper) interconnect, clock- and power-delivery layers, which are generally quite different from the underlying transistors. These layers are larger-scale, and copper also absorbs X-rays much more strongly than silicon.
- xpct 20d agoAh, I see. Thank you for the correction.
- lathiat 21d agoLTT Labs are writing up a lot of nice content of late.
- fishgoesblub 21d agoSadly posts from one of their employees, Lucas, are auto-dead and don't get seen which is sad given their effort and quality.
- rylando 20d agoI wonder why? Genuinely, not sarcastically
- kevincox 20d agoProbably because the account has only ever submitted its own content. https://news.ycombinator.com/submitted?id=LabsLucas https://news.ycombinator.com/submitted?id=LabsLucas > Please don't use HN primarily for promotion. It's ok to post your own stuff part of the time, but the primary use of the site should be for curiosity. > https://news.ycombinator.com/newsguidelines.html https://news.ycombinator.com/newsguidelines.html
- nagaiaida 20d agopotentially overly-aggressive spam filtering? the first comment by that account happens to start off with "The new $39.99 USD Anker Nano 45W(A121D) charger" verbatim.
- newsclues 20d agoThe author of the linked article is Lucas...
- tecleandor 20d agoI think he means that, when Lucas sends himself the link to HN, it's autodead. If you click the domain, you see all submissions from LucasLabs are dead.
- rylando 20d agoHow neat! Would be cool to see the side by sides of equivalent tier CPU’s throughout the generations