Coffeelake thread, benchmarks, reviews, input, everything.

[LTC8K6]

Ok so got my 8700k up and running and ram ran 3000 as specced out the gate. Easy stuf. Nice to work with a mature platform. Old stuff got it charms.
And cpu is cheap stuff these days. One year ago a 7700 was like nearly 30% more expensive as i recall. At last after 8 years, things is moving the right way. Gotta love those Ryzens ! 🙂
Is there any meaning in oc the ram from 3000 c15 to say 3200 c16 for games?
Do i have to update bios now due to all this meltdown issue what not or what is the recomandation?

Run Inspectre and see what it says.

https://www.grc.com/inspectre.htm

 

[krumme]

Run Inspectre and see what it says.

https://www.grc.com/inspectre.htm

Thanx. Had to upgrade bios to get protected.

 

[formulav8]

Intel Coffee Lake-S processor with 8-cores spotted for the first time

Intel 8-core CPU and Z390

It is no longer a secret that Intel is preparing for ‘core-an war’ with AMD. The Core i7-8700K featuring 6-cores was Intel’s first high-end gaming processor for the Zxxx platform. This expansion will soon reach the mobile market where Coffee Lake-H will make a debut with 6-core SKUs.

The Z390 platform, which has been appearing in various leaked roadmaps for the past few months now, is more or less confirmed. The latest information suggests that we should be seeing Coffee Lake Refresh around summer.

It’s hard to say what else to expect from Intel, but the priority is certainly put towards multi-threading required for content creation and gaming.

The 8-core Intel Coffee Lake S SKU might be part of 8th Gen Core, but it could also be part of 9th Gen core.

The leak shows an unrecognized CPU with 8-cores and 16-threads. The clock may be a base clock, but it could also be a misreading by the software. The testing platform is recognized as Intel Corporation CoffeeLake S82 UDIMM RVP, which is an engineering board.

 

[JoeRambo]

Nice. Hopefully they'll stick with 16MB of sweet and fast ring type L3 for this 8C CPU.

 

[scannall]

Nice. Hopefully they'll stick with 16MB of sweet and fast ring type L3 for this 8C CPU.

Going into a core wars, the Ring Bus is dying off. 8 core and 16 threads is a LOT of stops along that ring.

 

[krumme]

Going into a core wars, the Ring Bus is dying off. 8 core and 16 threads is a LOT of stops along that ring.

What is data for KL vs CL for latency? 4 vs 6 cores. What can we expect for 8c ringbus vs mesh?

 

[JoeRambo]

Going into a core wars, the Ring Bus is dying off. 8 core and 16 threads is a LOT of stops along that ring.

I don't think ring is a problem as long all cores and cache are on the same ring. 8 is probably golden number for such setup, and Intel had such CPUs since 2014 in the form of ̶H̶a̶s̶w̶e̶l̶l̶-̶E̶ (Sandy Bridge-EP) 8-core chips.

I'd be very suprised if Intel switched to mesh type for CofeeLake 8C, but who knows? Ofc it will take just one leak of L2 cache size to reveal it, if it's 256kb, then it's good old ring.


EDIT: it's sandy-EP that had first of 8C ring

 

[amdfan111]

I don't think ring is a problem as long all cores and cache are on the same ring. 8 is probably golden number for such setup, and Intel had such CPUs since 2014 in the form of ̶H̶a̶s̶w̶e̶l̶l̶-̶E̶ (Sandy Bridge-EP) 8-core chips.

I'd be very suprised if Intel switched to mesh type for CofeeLake 8C, but who knows? Ofc it will take just one leak of L2 cache size to reveal it, if it's 256kb, then it's good old ring.


EDIT: it's sandy-EP that had first of 8C ring

If you search for AIDA64 screenshots, you will see that L3 latency essentially did not change when going from the 7700K to the 8700K. At worst, Broadwell-EP AIDA64 screenshots show 16 ns latency on LCC chips at the factory 2.8 GHz frequency. Overclocked screenshots show the latency back down to 12 ns, which is the same as 8700K. In the distant future, Intel may need to switch to a mesh for the 16-core successor to the "9700K", when bandwidth becomes a limiting factor.

 

[IntelUser2000]

Nice. Hopefully they'll stick with 16MB of sweet and fast ring type L3 for this 8C CPU.

Why would they do a redesign? It is after all called Coffeelake 8C.

Going to a mesh requires a significant change, something that won't be worth doing for what is essentially a refresh. Broadwell EP/EX has 2 rings for 24 cores. That may mean we're ok to 12 cores at least.

 

[Arachnotronic]

Why would they do a redesign? It is after all called Coffeelake 8C.

Going to a mesh requires a significant change, something that won't be worth doing for what is essentially a refresh. Broadwell EP/EX has 2 rings for 24 cores. That may mean we're ok to 12 cores at least.

They're not going to introduce the mesh onto the client parts anytime soon. CFL 8 core is just a straightforward CFL-S + 2 cores + additional L3$.

 

[IntelUser2000]

They're not going to introduce the mesh onto the client parts anytime soon. CFL 8 core is just a straightforward CFL-S + 2 cores + additional L3$.

Yep.

Intel did in a way plan for core count increase with the Skylake uarch. On the previous generations, the 4 cores are all lined up. Starting with Skylake, there are two rows, and two columns, making it a 2x2 configuration. That's so it doesn't get so long when cores are added. With 8C CFL, they can go with 4x2. With Broadwell they would have had one long die in 8x1 layout. While it was possible to change the layout as with GT3e chips, it takes extra time as evidenced by how long it took for them to release.

 

[Arachnotronic]

Yep.

Intel did in a way plan for core count increase with the Skylake uarch. On the previous generations, the 4 cores are all lined up. Starting with Skylake, there are two rows, and two columns, making it a 2x2 configuration. That's so it doesn't get so long when cores are added. With 8C CFL, they can go with 4x2. With Broadwell they would have had one long die in 8x1 layout. While it was possible to change the layout as with GT3e chips, it takes extra time as evidenced by how long it took for them to release.

Considering that CNL was basically a shrink of SKL and they had planned for >4 core SKUs, it's not surprising that they'd have had a more forward looking design.

 

[krumme]

There is good space segment wise for a "9700k" 8c. The 8700k is priced aprox midway between 7600k and 7700k one year ago. And i am pretty sure there is solid demand here.
If you game bf1 on 144 mp64 you can make use of those extra cores for the min 1% fps. And by 9700k time we are nearly in for the next bf and the beta is practically there. Tons of people will want that multicore grunt on low latency ring bus even if its only 130 vs 138 fps.

 

[Eug]

Are you suggesting an 8-core i7? Why wouldn't 8-core be marketed as i9?

 

[Hail The Brain Slug]

Are you suggesting an 8-core i7? Why wouldn't 8-core be marketed as i9?

Because on HEDT, the 6 and 8 core Skylake-X SKU's are marketed as i7's.

 

[Eug]

Because on HEDT, the 6 and 8 core Skylake-X SKU's are marketed as i7's.

Yeah but the marketing is changing now, bringing i9 to the mainstream.

For example, Intel is bringing i9 to mobile at 45 Watts.

I'd guess that an 8-core could be a mainstream desktop i9, and not HEDT.

 

[epsilon84]

Intel Coffee Lake-S processor with 8-cores spotted for the first time

So this is pretty much the rumoured '9700K' that many claimed were dead in the water and that Intel had nothing coming until 10nm CNL.

I always thought it made sense for Intel to have an 8C SKU to compete against Ryzen 2, though I'm sure this is a contingency option because of all the 10nm delays

 

[LTC8K6]

So this is pretty much the rumoured '9700K' that many claimed were dead in the water and that Intel had nothing coming until 10nm CNL.

I always thought it made sense for Intel to have an 8C SKU to compete against Ryzen 2, though I'm sure this is a contingency option because of all the 10nm delays

No link to the actual info?

 

[epsilon84]

No link to the actual info?

This was the original rumour from November 2017: https://wccftech.com/intel-core-i7-9700k-9th-gen-8-cores-16-threads-rumor/

A few posters here thought that an 8C CFL chip wouldn't be possible or feasible, perhaps due to power constraints, but even if there are no further 14nm power optimisations, a '9700K' would fit under a 130W TDP assuming linear scaling of power to core count. It certainly won't be a cool running chip, but nothing a decent HSF couldn't handle.

 

[jpiniero]

A few posters here thought that an 8C CFL chip wouldn't be possible or feasible, perhaps due to power constraints, but even if there are no further 14nm power optimisations, a '9700K' would fit under a 130W TDP assuming linear scaling of power to core count. It certainly won't be a cool running chip, but nothing a decent HSF couldn't handle.

I would think it would stay at 95W, just lower base clocks. You will need a rather beefy cooler to get all 8 cores at 5 Ghz I imagine though.

 

[krumme]

On my mini atx z370 board i had to place gpu in the pci x4 port as my noctua d15 blocked the x16 port.
So now i sleep bad at night.
Was thinking of getting a be quiet rock 3 pro and it should fit. But there is a 4 version incomming in q2.
That can make me sleep bad as well.
What you think to do? Coaching and voting needed.
Any other similar low noise alternatives?

 

[Dayman1225]

A bunch of H310/370 boards stocked in a Thailand store.
GIGABYTE H370 AORUS GAMING 3 WIFI 1.0 listed on a retailers website for 145 Euro
And according to VideoCardz, Rest of Coffee Lake S is launching on the 2nd of April, as well as the mobos and Coffee Lake H launching the day after (3rd)
and last but not least GIGABYTE B360N WIFI and B360M DS3H motherboards pictured

 

[LTC8K6]

This was the original rumour from November 2017: https://wccftech.com/intel-core-i7-9700k-9th-gen-8-cores-16-threads-rumor/

A few posters here thought that an 8C CFL chip wouldn't be possible or feasible, perhaps due to power constraints, but even if there are no further 14nm power optimisations, a '9700K' would fit under a 130W TDP assuming linear scaling of power to core count. It certainly won't be a cool running chip, but nothing a decent HSF couldn't handle.

You can still count me in as doubting it's existence on the Coffee Lake architecture.

If Intel got nice clocks with an 8C/16T Coffee Lake chip, and kept it at a 95W TDP, then that would be great.

 

[formulav8]

You can still count me in as doubting it's existence on the Coffee Lake architecture.

You don't think there is an 8 Core part coming out soon or it's not going to be based on Coffee Lake?

 

[LTC8K6]

You don't think there is an 8 Core part coming out soon or it's not going to be based on Coffee Lake?

I'd be surprised to see an 8 core standard Coffee Lake chip.

I think if it's standard Coffee Lake architecture, the base clock will end up being too low.

We are finally getting good hints of the rest of the S chips and the lower end boards getting ready to be released.

2H18 is not far away and there really haven't been any solid 9700K or Z390 leaks yet, have there?