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Xiaomi: New CPU matches Apple cores single threaded, much faster multithreaded

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Re: Xiaomi: New CPU matches Apple cores single threaded, much faster multithreaded

#341

Post by maxglute »

LPisGood wrote: post #180

Suspiciously ignored is power consumption. That’s the biggest and most useful metric often ignored because it’s less flashy than speed.

IMO bot that important practically - SiC batteries, active cooling, bypass charging etc - if one really cares about sustained performance (gaming etc), PRC has phones segments big on mitigating thermal throttling. Exclude benchmark drama, golden samples, retail units still vastly outperform passively cooled phones with "better" silicon on long sessions. Otherwise there aren't many usage case where power consumption matters between that can't be trivially made up by slightly better or larger battery and/or passive cooling.

Re: Xiaomi: New CPU matches Apple cores single threaded, much faster multithreaded

#342

Post by tverbeure »

menaerus wrote: post #230
tverbeure wrote: post #156

Earlier quoted context omitted.

And how did that IP portfolio come into existence? Did it suddenly materialize out of thin air or… did ARM engineers design it? I’m going to give you the benefit of the doubt: in your mothertongue, the meaning of “design” is not as broad as in English?

How about Apple M series ARM chip designs? From what I have seen only resemblance with ARM is the ISA.

What about it? Apple has an architectural license which allows them to design their own CPUs with ARM ISA. Most companies that use ARM CPUs don’t.

Re: Xiaomi: New CPU matches Apple cores single threaded, much faster multithreaded

#343

Post by linkregister »

sundbry wrote: post #317
linkregister wrote: post #294

Earlier quoted context omitted.

I'm unaware of any actual hardware backdoors introduced by primary manufacturers in practice, especially those installed in Xiaomi hardware. There are accounts of interdiction and post-manufacturing compromises, such as those revealed in the Snowden leaks (2013) and most recently by reporting about the Israeli security services' sabotage of Hezbollah pagers and 2-way radios. These projects didn't expose primary manuf…

[flagged]

My retardation status is unrelated to my statement. You assert there are top secret register values but without any evidence beyond your most recent psilocybin trip.

The existence of undocumented hardware behavior isn't proof of anything.

Re: Xiaomi: New CPU matches Apple cores single threaded, much faster multithreaded

#344

Post by bigyabai »

kccqzy wrote: post #285
strictnein wrote: post #82

Missing the most important metric: processing power per watt. I have some server CPUs laying around that can also beat Apple CPUs. But putting them in a compact, densely packed, sealed box (aka a phone) would result in a fireball and almost no battery life.

No I don’t think you can find a single CPU that can beat Apple CPUs in a single-threaded workload.

Unless you're benchmarking single-threaded SIMD: https://lemire.me/blog/2020/12/13/arm-macbook-vs-intel-macbo...

Re: Xiaomi: New CPU matches Apple cores single threaded, much faster multithreaded

#345

Post by well_ackshually »

szatkus wrote: post #258
Brybry wrote: post #210

Earlier quoted context omitted.

Xiaomi's Xring O3 is manufactured by TSMC N3P process in Taiwan. [1] MediaTek Dimensity 9500 is also manufactured by TSMC N3P process in Taiwan. [2] There was no world interdependence change (unless one considers China and Taiwan to be the same countries). [1] https://www.notebookcheck.net/Xiaomi-launches-XRing-O3-claim... [2] https://www.notebookcheck.net/MediaTek-Dimensity-9500-Proces...

MediaTek is a Taiwanese company. Xiaomi could put any backdoor that the government tell them to install and TSMC won't be able to catch that.

TSMC doesn't care what you put in your CPUs. Apple could tell them they want to build a CPU where 90% of the transistor footprint is for a new CIA Engine that takes pictures of your feet every three seconds to trace where you've been from the smell and TSMC's response would be "how many wafers do you want?".

Re: Xiaomi: New CPU matches Apple cores single threaded, much faster multithreaded

#346

Post by RiverCrochet »

sundbry wrote: post #317
linkregister wrote: post #294

Earlier quoted context omitted.

I'm unaware of any actual hardware backdoors introduced by primary manufacturers in practice, especially those installed in Xiaomi hardware. There are accounts of interdiction and post-manufacturing compromises, such as those revealed in the Snowden leaks (2013) and most recently by reporting about the Israeli security services' sabotage of Hezbollah pagers and 2-way radios. These projects didn't expose primary manuf…

[flagged]

Get off the short bus twin. CPU backdoors do no good unless there is cooperation with network driver code or the CPU itself has full operating system with a full network stack.

Intel's ME comes really close to that, but I don't think Intel's ME has drivers for every possible NIC and bus a NIC can appear on in its little Minix. So, just put a Broadcom NIC in a PCIe slot and leave the Intel onboard NIC empty, or LAN facing only.

Xiaomi may get Chinese 4G/5G baseband chip manufacturers to put in backdoors in Chinese phones, but they're not needed - the Chinese government pretty much already has total control of its Internet. For other countries, how are they going to make Qualcomm provide something undocumented CPU instructions can access.

Re: Xiaomi: New CPU matches Apple cores single threaded, much faster multithreaded

#347

Post by t-3 »

palmotea wrote: post #134
FpUser wrote: post #104

Earlier quoted context omitted.

[flagged]

> Sounds like a loser diatribe. Nobody asked your country to do anything with China. Was your government's and corporations choice and yes they had to pay for the privilege of cheap labor and later for advanced manufacturing capacity. No, the GP's comment is an attempt to correct the mistake you were so kind to outline. There's no reason we must stick with the approach set by a previous set of leaders who turned out…

What's short-sighted and naive is believing that globalism can be reversed, that economic efficiency can be overcome by political will, and that knowledge can be contained to one country. More and deeper international economic and political entaglements are inevitable. How can an adversarial relationship with one of the most advanced countries with abundant production and labor capacity help anything? Economic nationalism and high tech are incompatible.

Re: Xiaomi: New CPU matches Apple cores single threaded, much faster multithreaded

#348

Post by codersfocus »

linkregister wrote: post #294
szatkus wrote: post #258

Earlier quoted context omitted.

MediaTek is a Taiwanese company. Xiaomi could put any backdoor that the government tell them to install and TSMC won't be able to catch that.

I'm unaware of any actual hardware backdoors introduced by primary manufacturers in practice, especially those installed in Xiaomi hardware. There are accounts of interdiction and post-manufacturing compromises, such as those revealed in the Snowden leaks (2013) and most recently by reporting about the Israeli security services' sabotage of Hezbollah pagers and 2-way radios. These projects didn't expose primary manuf…

Intel management engine

Re: Xiaomi: New CPU matches Apple cores single threaded, much faster multithreaded

#349

Post by Sohcahtoa82 »

holoduke wrote: post #310
Dah00n wrote: post #275

Earlier quoted context omitted.

Sure if you are Bezos or Musk. Otherwise, no.

Gdp grew much faster in the US than in the EU. I believe the EU is the worst performer of the planet. No joke. And not surprising with the self destructive actions.

This doesn't really refute what Dah00n said.

Sure, GDP in the USA is growing faster than the EU, but the question is who is benefiting from the increased GDP?

The answer is in Dah00n's comment. The rich are getting richer, while the population gets scraps. Meanwhile, people in the EU get guaranteed healthcare, paid time off, maternity leave, better worker's rights, etc.

Re: Xiaomi: New CPU matches Apple cores single threaded, much faster multithreaded

#350

Post by well_ackshually »

holoduke wrote: post #310
Dah00n wrote: post #275

Earlier quoted context omitted.

Sure if you are Bezos or Musk. Otherwise, no.

Gdp grew much faster in the US than in the EU. I believe the EU is the worst performer of the planet. No joke. And not surprising with the self destructive actions.

Because as everyone knows, GDP is _the_ indicator for well being of its citizens. Nobody in the US is in catastrophic health related debt, because the US's GDP grew so much <3
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