Intel "Bartlett Lake" Appears as a P/E-Core Hybrid, P-Core Only CPUs Could Soon Follow

[sudothelinuxwizard]

That's because e-cores aren't efficient with power, only with die area. One p-core takes up the same space as a cluster of 4 e-cores, so e-cores are a nice way to increase core count and MT performance, but they throw power economy out of the window. I have a feeling that the 12 p-core design will consume less power than Raptor Lake does, unless Intel decides to overvolt it to the moon.

Which they probably will given how desperate they are. Even after the microcode fix on Raptor Lake, I feel 1.55V is way too high for 7nm-class silicon.

 

[JustBenching]

Maybe. I just want to see BTL at safe temps with a reasonably-sized cooler. We'll see when it comes out, I guess.

Non k chips will do that, like they did every gen. No shot with the k chips, those are meant to be hitting their face against the voltage limit.

 

[fry]

Maybe. I just want to see BTL at safe temps with a reasonably-sized cooler. We'll see when it comes out, I guess.

To be fair, the newly released chips for edge are all 65w or lower parts (Not sure what the voltage is, but it is presumably lowered too). If Intel follows the same principle for the P core chips, you may get your wish. Then again, if Intel releases Bartlett Lake S as edge chips, we may not see them in retail, which would be unfortunate.

 

[Scrizz]

CPUs should be controlled by the BIOS, not software, imo.

You do know what the role of the operating system is, right? It's literally the thing that manages resources...
That's its job. https://en.wikipedia.org/wiki/Operating_system

I'd encourage you to read up a bit on computer architecture too.

 

[AusWolf]

You do know what the role of the operating system is, right? It's literally the thing that manages resources...
That's its job. https://en.wikipedia.org/wiki/Operating_system

I'd encourage you to read up a bit on computer architecture too.

I know that, but what use is it if I still have to install other software to control my CPU?

 

[irsh]

If this gets a cache boost X3D-style I'm a buyer.

 

[flim]

Without E-core means allowed AVX-512 on all P-cores?

 

[Dr. Dro]

Without E-core means allowed AVX-512 on all P-cores?

Intel's excuse for disabling AVX-512 in Alder and Raptor Lake is that while Golden/Raptor Cove (P-core architecture) supports AVX-512, Gracemont (E-core architecture) does not. In truth we know this is due to market segmentation reasons and to simplify platform validation. Windows is incognito, but we've had hybrid architecture processors with mismatching ISA working on Linux for a long time now.

With the E-cores removed, there should be no excuse (or justifiable reason) as to why disable this functionality, which is only available on early manufacture (up to around late 2021, earliest weeks of 2022 manufacture, round logo on IHS) 12th Gen CPUs, as long as the E-cores are disabled in BIOS and an old microcode that doesn't hide this functionality is loaded. Some BIOSes support this configuration, but it's not official and it's not guaranteed that your processor supports this, as Intel started to fuse off the hardware bits required to make it work past the date I've mentioned earlier.

 

[shanenc14]

I'm currently running a 12600KF OC'd to P: 5.3/E :4.2/R :4.5, I'd replace that with a 12 P-Core only chip as a last hurrah for my LGA 1700 platform if it has a unlocked multiplier...

 

[Wolverine2349]

Well although I'm not personally interested on a non ecore intel cpu, I can see that a lot of people would be highly interested simply because there is no other cpu like it. There is an alarming absence of a chip with over 8 big cores that aren't separated by an ocean. Literally, there are none. You either have to go with ecores or split CCDs

Yeah no kididng. It sucks there is no such option for such a chip. Last such chip was Comet Lake the 10 core versions on a single ring bus (10900K and 10850K) and that is outdated IPC so far behind even Zen 3 and stuck at PCIe Gen 3 and lol and released almost 5 years ago and still very outdated as on Skylake derivative architecture in its IPC.

Well maybe Sapphire Rapids but even then its latency sucks and all cores are like separated by an ocean even if latency is more consistent between them and the info is scarce on them besides it just being an insanely expensive platform with stupid enterprise overhead detrimental to consumers and gaming besides just cost unlike Broadwell E and prior Intel HEDT.

For AMD forget about it, Even their Threadripper is still 8 cores then more separated by an ocean as they just stack a bunch of 8 core CCDs into one package.

Zen 6 is maybe the hope but info keeps changing and who knows what they will do with AMD being cheap.

Hopefully intel releases 12 P core Bartlett Lake and it is stable and reliable and can clock a little more than 5GHz with Raptor Cove IPC and its stable and does not degrade and I will buy it immediately and sell my 9800X3D. It mayb be a slight downgrade in some gaming scenarios, but when games get more threaded or the few heavily threaded games (Cities SKyline with large populations and cities) the simplicity and extra cores with only mild 5-7% worse IPC will come so in handy and no hybrid or dual CCD scheduling nightmare crap.

Q3 2025 for pure pcores. That's too freaking late.

But nice upgradability for lga1700, 2021 to 2026.

Way too late but better late than never especially in a world where X86 IPC gains are minimal. Zen 6 seems unknown but even rumors suggest its IPC increase is underwhelming. WIll it finally have the 12 core CCXs or just a rumor? But got to wait 2 friggin years and sick of waiting if it even has it.

Could the 12-core part be reused silicon from some Rapids server chips?

A single 400 mm² die of the four-die big Sapphire Rapids processor would be a candidate... almost. It has 15 cores, DDR5 and PCIe5 controllers and everything. But Intel never mentioned that a single die can be made to work, and also the cores would be Golden Cove, not even Raptor Cove.

Maybe and that would make it a hard pass as that is on a mesh arch which sucks bad for gaming with horrible latency.