Curious what happens when you call into the vector (AVX hardware).
Intel Announces 8 Core I9-9900KS: Every Core at 5Ghz, All the Time
71–80 of 277 posts
Re: Intel Announces 8 Core I9-9900KS: Every Core at 5Ghz, All the Time
#72Should they be describing it as 8 cores 16 threads when there have been multiple security vulnerabilities that have to turn off hyperthreading to be mitigated?
Besides cloud providers running VMs /containers on the cloud, is Spectre/Meltdown really such an issue for day-to-day consumers ?
Yes and no. It is possible to exploit Meltdown / Spectre via Javascript. From [0]:
> This can happen when one has opened the other using window.open, or , or iframes. If a website contains user-specific data, there is a chance that another site could use these new vulnerabilities to read that user data. Most browsers have pushed patches which eliminate known mechanisms of leveraging the exploit, but the pathway cannot be completely mitigated by browser patches, I believe. [0] https://developers.google.com/web/updates/2018/02/meltdown-s...
Re: Intel Announces 8 Core I9-9900KS: Every Core at 5Ghz, All the Time
#73I used to be Pro Anandtech and consider them one of the best Sources online for Hardware News. But the fact they have yet write a single post, big or small about Intel's Zombieload and its implication on performance worries me a bit. Then there is the "Intel" benchmarks as usual [1] on GPU. Trying to suggest the 2 CPU were both running at 25W TDP to give a "fair" comparison, without mentioning the Ice-Lake U CPU were…
Anand Lal Shimpi left Anandtech 5 years ago, and the quality articles he wrote have not been replaced. It's basically a tech lite blog now.
Re: Intel Announces 8 Core I9-9900KS: Every Core at 5Ghz, All the Time
#74Earlier quoted context omitted.
I'll keep HT on because I use NoScript and I encourage others to do the same.
Meh. It doesn't require Javascript for your computer to run logic described by others. Browsers are such complex machines that it wouldn't surprise me if you could for example craft a malicious SVG that would bypass that, or a turing-complete CSS file that triggers a vulnerability... By the way, does NoScript actually block in-SVG javascript?
Sure, but we all take risks every day. If you're worring about turning-complete CSS files exploiting Spectre and Meltdown then you probably don't leave the house much.
Re: Intel Announces 8 Core I9-9900KS: Every Core at 5Ghz, All the Time
#75Why 5 Hz all the time? I'd love to have such an extremely powerful CPU but I'd actually appreciate if it could downclock itself automatically and stay as cold as possible whenever I don't need it's full power. Some times I run heavy computations and having 8 5Hz cores sounds great but most of the time I just read or write something so even 1000 Hz sounds an overkill.
It doesn't run at 5Ghz all the time. 5GHz is it's all-core turbo. It simply means that all cores will run at 5Ghz under full load.
Re: Intel Announces 8 Core I9-9900KS: Every Core at 5Ghz, All the Time
#76Why 5 Hz all the time? I'd love to have such an extremely powerful CPU but I'd actually appreciate if it could downclock itself automatically and stay as cold as possible whenever I don't need it's full power. Some times I run heavy computations and having 8 5Hz cores sounds great but most of the time I just read or write something so even 1000 Hz sounds an overkill.
Base frequency isn't the same as lowest frequency (ya... it's weird). Base frequency is vaguely related to the idea that if you had all cores running at the base frequency, you would run just about at the system's TDP (it's really a complete mess, this is a simplification). Your system can still drop CPU cores down to 400-800MHz in low energy states. What this announcement is basically saying is that Intel now has a…
According to siliconlottery.com 38% of 9900K are overclockable to 5 GHz. Probably they just decided to select good chips from 9900K at factory, those not exactly new chips.
Re: Intel Announces 8 Core I9-9900KS: Every Core at 5Ghz, All the Time
#77Earlier quoted context omitted.
From how Apple and AMD are doing with their own processors though, it seems like Intel is just fundamentally doing worse even as things become more difficult with smaller transistor sizes. Apple is going to replace Intel with their own processors because Intel has failed to meet requirements. AMD, with a shoestring budget basically on the verge of bankruptcy the entire time they were doing their R&D, managed to build…
Intel was ahead, and hit the wall first. Apple & AMD are not ahead, they're just catching up. I don't want to understate how big a problem that could be for Intel, of course. But they're also doing it on low margin parts, and Intel continues to make bank with their data center parts. I don't think any of this represents a short-term problem for Intel, other than the general downturn in processor sales because fewer p…
Apple sold millions of iPhones with 7nm chips while Intel struggles to build comparable 10nm chips and keeps releasing 14+++ nm. AMD will release 7nm chips very soon. It does not seem like they are catching up. Quite the opposite.
Re: Intel Announces 8 Core I9-9900KS: Every Core at 5Ghz, All the Time
#78Earlier quoted context omitted.
And to explain why they don't have, say, one core boost to 5.1GHz...well, let's see what siliconlottery says. > As of 3/16/19, the top 38% of tested 9900Ks were able to hit 5.0GHz or greater. > As of 3/16/19, the top 8% of tested 9900Ks were able to hit 5.1GHz or greater. So, Intel'd cut their yield by more than a factor of four if they only let parts that could hit 5.1 into this bin. For a 2% single-core performance…
I think those numbers are for chips that can 5.1 GHz all core though, which is probably a lot less than 5.1 GHz single core.
As far as I know, K-series parts don't support binning of individual cores- if you have one bad core that'll only hit 5.0, 1-core turbo to 5.1 will still result in the OS scheduler periodically picking that core to use, it clocking up to 5.1, and problems resulting.
Might be wrong, though.
Re: Intel Announces 8 Core I9-9900KS: Every Core at 5Ghz, All the Time
#79I used to be Pro Anandtech and consider them one of the best Sources online for Hardware News. But the fact they have yet write a single post, big or small about Intel's Zombieload and its implication on performance worries me a bit. Then there is the "Intel" benchmarks as usual [1] on GPU. Trying to suggest the 2 CPU were both running at 25W TDP to give a "fair" comparison, without mentioning the Ice-Lake U CPU were…
Anand Lal Shimpi left Anandtech 5 years ago, and the quality articles he wrote have not been replaced. It's basically a tech lite blog now.
I would say Ian is really the only writer at anand i care to read from anymore. His articles always take time to come out compared to everyone else but they at least cover every thing he can think of to tell you about and are well researched
Re: Intel Announces 8 Core I9-9900KS: Every Core at 5Ghz, All the Time
#80Why 5 Hz all the time? I'd love to have such an extremely powerful CPU but I'd actually appreciate if it could downclock itself automatically and stay as cold as possible whenever I don't need it's full power. Some times I run heavy computations and having 8 5Hz cores sounds great but most of the time I just read or write something so even 1000 Hz sounds an overkill.
Open Task Manager or Intel Power Gadget (on Mac) and watch your CPU frequency - it already downclocks itself when it's not under load. Usually my 4770 is around 1.2Ghz idling, and I believe some motherboards let you set a minimum clock lower than that in the BIOS.