[AnandTech] Intel Announces 8 Core i9-9900KS: Every Core at 5.0 GHz, All The Time - Page 9 - Overclock.net - An Overclocking Community

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[AnandTech] Intel Announces 8 Core i9-9900KS: Every Core at 5.0 GHz, All The Time

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post #81 of 113 (permalink) Old 06-02-2019, 01:54 AM
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Quote: Originally Posted by junglechocolate View Post
so is there really much of a difference between all cores at 4.7ghz vs 5ghz?
Consider its a total of 2.4ghz difference in clock across 8 cores. Every 100Mhz is about 2% performance boost in CPU limited scenarios so 4.7ghz vs 5ghz is roughly 6% performance left on the table. In a game at 100 fps thats a difference of 6 fps. Not a big deal at all really for 99.99% of people. Another way to look at it is you have 8 cores at 4.7Ghz and the person running at 5ghz has 8.5 cores at 4.7ghz As that 2.4ghz difference is almost half of an extra core.

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post #82 of 113 (permalink) Old 06-02-2019, 05:37 AM
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Quote: Originally Posted by Malinkadink View Post
Consider its a total of 2.4ghz difference in clock across 8 cores. Every 100Mhz is about 2% performance boost in CPU limited scenarios so 4.7ghz vs 5ghz is roughly 6% performance left on the table. In a game at 100 fps thats a difference of 6 fps. Not a big deal at all really for 99.99% of people. Another way to look at it is you have 8 cores at 4.7Ghz and the person running at 5ghz has 8.5 cores at 4.7ghz As that 2.4ghz difference is almost half of an extra core.
Great summary. In gaming the i9 9900k is only hitting about 50% usage, most the time it's less. So it will translate to less than 6% real world, until the CPU becomes the bottleneck. Not really worth the extra heat or power draw for a max of 6%!

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post #83 of 113 (permalink) Old 06-03-2019, 01:23 AM
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Quote: Originally Posted by TomahawkT10 View Post
Great summary. In gaming the i9 9900k is only hitting about 50% usage, most the time it's less. So it will translate to less than 6% real world, until the CPU becomes the bottleneck. Not really worth the extra heat or power draw for a max of 6%!
It depends on the game too, some games still only use 2 threads like WoW so every Mhz counts. Newer games that tend to use 6 or more threads will see less benefits from higher clockspeeds.

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post #84 of 113 (permalink) Old 06-03-2019, 08:47 AM - Thread Starter
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Screw Intel, I'm not upgrading my $380 board.
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post #85 of 113 (permalink) Old 06-03-2019, 09:12 AM
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Quote: Originally Posted by nycgtr View Post
All of the ones I've had will need over 1.3. However, at the same point all of mine hit 5.1-5.2 in the mid 1.35ish. With one doing 5.3 with the same volts. I doubt we are going to see any 5s with the 1.25v binned or not.
I've OC'd two of them to 8 x 5 GHz. Mine took 1.26v, my friend's took 1.27v (different mobo than mine - ASRock Taichi). I'm sure there are plenty of 9900K's out there that will do it at 1.25v. By "plenty" I mean a reasonable percentage, maybe 20 or so, but who knows for sure. Silicon lottery at work here obviously.

Quote: Originally Posted by junglechocolate View Post
so is there really much of a difference between all cores at 4.7ghz vs 5ghz?
If we're talking gaming at 4K and 1440P Ultrawide, nope. At that point the burden shifts to the GPU.

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post #86 of 113 (permalink) Old 06-03-2019, 09:29 AM
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TDP was never meant to imply power consumption and only does so reliably when there are limiters in play. At some times, with some parts, it does closely correlate to power consumption, but that's often coincidental.

Traditionally, TDP is what the acronym implies...the sort of cooling needed for the part to run within spec.

Always best to actually measure power consumption.

Quote: Originally Posted by Darkpriest667 View Post
And this is the crux, because if you disable hyperthreading, which is the FIX for a lot of these security exploits. It will get owned by Ryzen 2 and we all know that.
The recently revealed Fallout is the only major Intel exclusive exploit that doesn't have a mitigation that is better than disabling hyperthreading.

Quote: Originally Posted by skupples View Post
i mean, why though?
So it looks competitive in benchmarks.

This is the quickest, easiest, cheapest, and ultimately most rational way to keep up the pretenses that allow them to sell high-end consumer parts.

Quote: Originally Posted by WannaBeOCer View Post
what's the reason to buy Intel chips now adays?
PlayStation 3 emulators that get a ~40% boost from TSX instructions.

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post #87 of 113 (permalink) Old 06-03-2019, 10:10 AM
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post #88 of 113 (permalink) Old 06-03-2019, 11:41 AM
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Quote: Originally Posted by WannaBeOCer View Post
Screw Intel, I'm not upgrading my $380 board.
Hi,
Better cancel that order 1151 300 series boards

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post #89 of 113 (permalink) Old 06-03-2019, 01:40 PM
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Quote: Originally Posted by WannaBeOCer View Post
Screw Intel, I'm not upgrading my $380 board.
Is it just a bios update to run it?

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post #90 of 113 (permalink) Old 06-13-2019, 02:08 AM
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Quote: Originally Posted by bigjdubb View Post
Quote: Originally Posted by WannaBeOCer View Post
Screw Intel, I'm not upgrading my $380 board.
Is it just a bios update to run it?
Also have to disable a few contacts on the bottom of the cpu.

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