Meet "Kaby Lake Refresh". That's no joke... Coffee Lake was not talked about but, but this Kaby Lake and it's called 8th gen. "Intel stating that they’ve made minor tweaks to the microarchitecture and manufacturing to get better performing silicon, the base frequencies are down slightly. Turbo modes are still high, ensuring a similar user experience in most computing tasks."
In addition to this Intel has changed the: "nomenclature of the integrated graphics from HD 620 to UHD 620, indicating that the silicon is suited for 4K playback and processing. During our pre-briefing it was categorically stated several times that there was no change between the two, however we have since confirmed that the new chips will come with HDMI 2.0/HDCP 2.2 support as standard, removing the need for an external LSPCON for this feature. Other than this display controller change however, it appears that these new UHD iGPUs are architecturally the same as their HD predecessors."
What might be impressive is this: "Intel is likely to have created new masks and revisions for this silicon to account for the lower power window as well as implementing HDCP 2.2 support and other minor fixes. Now by having quad-core parts in the 15W form factor, performance on the new chips is expected to excel beyond what has been available from the previous generation of Core i5-U and Core i7-U processors." - However this is an assumption and hasn't been confirmed, but if true... represents a big leap in low power performance solutions.. at least... in multitasking. It's assumed that Intel has achieved a 15% increase in IPC with this refresh... however, as you can see from this slide at launch.. it's down on clock speed.
We've seen impressive power consumption numbers from AMD Ryzen though, however in contrast, Vega seems to be an inefficient power hog, So the the competition in this notebook space will be interesting when we see it.
Now for some Bulldust:
"Even while multitasking" would seem to suggest that it can also get that it can get that much or abouts in single tasks too. However this is contradicted in another one of their own slides
25% of that performance is due to adding two extra cores. 7.5% each to architecture tweaks and manufacturing process respectively. This is also doesn't tell us if that is due to just the two extra cores, or the cores with HyperThreading... but I would give them the benefit of the doubt here and say just the cores. If you look back the previous slide though, they've had to use the legal disclaimer to say that these numbers include performance data from benchmarks that optimise for Intel procs only. This is any program made using the Intel Compiler Suite.
So what about Coffee Lake? "Intel only mentioned Coffee Lake in the context of the fact that today’s launch is not Coffee Lake. Because media were expecting this to be Coffee Lake (and expecting it to be a desktop processor launch), the question ‘is this Coffee Lake’ was actually asked several times, and the answer had to be repeated. These four new CPUs are still Kaby Lake CPUs built on the same 14+ technology, with minor updates, and bringing quad cores to 15W. So when is Coffee Lake on 14++ (or Cannon Lake) coming? Intel only stated that other members of the 8th Generation family (which contains Kaby Lake Refresh, Coffee Lake and Cannon Lake) are coming later this year. Desktop will come in the autumn, and additional products for enterprise, workstation and enthusiast notebooks will also happen. As for today's 8th Generation U-series announcement, Intel tells us that we should start seeing laptops using the new CPUs hit the market in September."
In summary, what does this mean for Coffee Lake? It looks like we can't tell much from this.. maybe we can call it half Coffee Lake, which I assume will be the code name for desktop parts. Looking at the KLR slides, I'm guessing that Baseline Performance is the 7th gen Kaby Lake parts running on 14nm+. What is unusual is their having squeezed out +7.5% performance from the same silicon process. Those design enhancements will likely transition over to Coffee Lake, and 14nm++ will likely move numbers a touch higher too. If GeekBench is anything to go by, we should see these desktop parts a touch faster than their Ryzen 6 core counterparts.
So it looks like we're not going to see much of a bump over 7th gen KL parts with the exception of multithreading. This might bode well for AMD as it seems that 14nm+ Ryzen information has gone quiet. But Zen2 7nm is happening.
8th gen Intel parts are merely a garnish on the same meal... however, final determination is reserved until they're in the hands of reviewers.
Edited by SceptreCore, 22 August 2017 - 09:39 PM.