Intel first 8th generation processors are just updated 7th generation chips. What generation is kaby lake

In 2017, Intel introduced the Kaby Lake processor refresh as a new 8th generation version. The details are the same as for the 7th Gen Intel processor, but some 8th Gen chipsets support DDR4-2666 RAM but not DDR3L RAM.

Difference Between Intel Processor Generations

The last time I went to a computer store to inquire about the latest laptop prices, I was told the new laptop had a 4th generation Intel processor. I asked the person about the difference between the first and fourth generations, but he was unable to answer correctly saying that the fourth generation was faster than the first, second and third generations.

So I went home and I wanted to know the philosophy of CPU generation on the Internet. To my amazement, there was no complete guide available that could make it clear about the Intel processor generations and their differences. After a lot of research, I have enough knowledge to write and document the differences that I found in this article.

The misconception

  • Pentium 1, 2, 3, 4
  • Celeron
  • Pentium M and Celeron M for mobile devices
  • Dual-core Pentium processor
  • Solo Core
  • Core Duo
  • Core 2 Duo
  • Core 2 Quad
  • Core i3, i5, i7

The concept of generations appears mainly after the release of the Core i series. The difference in the microarchitecture of the processors is the main difference in the generations of the processors. We will discuss these generations in detail below.

Click the image below to open the visual Intel generation timeline:

Generations of Intel processors

Generations of Intel processors

Hope this tutorial helped somehow. I’ve tried to make it as easy to understand as possible, but if you still have questions feel free to ask them in the comments section.

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Today, the first 8th-generation Intel Core processors hit the market: a quartet of 15-watt U-series processors for notebooks. Previous-generation U-series parts had two cores, four threads; these new chips double that number to four cores and eight threads. They also raise the maximum clock frequency to 4.2 GHz, although the basic clock frequency is heavily lowered to 1.9 GHz in the upper part (compared to 2.8 GHz in the 7th generation). But aside from these changes, little can be said about the new chips as in many ways the new chips aren’t really new.

i7-8650U i7-8550U i5-8350U i5-8250U
Base clock / GHz 1.9 1.8 1.7 1.6
Maximum 1-core / GHz clock 4.2 4.0 3.6 3.4
Maximum 2-core / GHz clock 4.2 4.0 3.6 3.4
Maximum 4-core clock / GHz 3.9 3.7 3.6 3.4
Cores 4 4 4 4
Threads 8 8 8 8
Cache Size / MB 8 8 6 6
Maximum GPU clock / GHz 1150 1150 1100 1100

Although Intel calls these parts “Eighth Generation”, their architecture for both the CPU and the integrated GPU is the same as the “7th Generation” Kaby Lake. In fact, Intel calls the architecture of these chips a “Kaby Lake refresh.” Kaby Lake itself was a minor update to Skylake, adding an improved graphics card (with 4K H.265 hardware accelerated video support, for example) and a clock speed boost. The new chips are still built on Intel’s “14nm +” manufacturing process, albeit a bit sophisticated.

U series

Earlier this year, Intel said the new chips would increase performance by 30 percent over the 7th generation parts; that figure is now 40 percent. In total, 25 percent of this increase (in the SYSmark test) comes from doubled the number of cores and threads. The remainder is split equally between “production” enhancements (that is, higher clock rates) and “design” enhancements.

and the same at the rear.

But what about the rest of the eighth generation? This is where Intel’s history is quite chaotic. Desktop chips are expected in the fall. Intel would not get caught up in commenting on it, but the common belief and expectation is that they will be six-core, 12-thread parts, built around an improved “14nm ++” manufacturing process with a “Coffee Lake” core. 45W notebook processors H series and 4.5W notebook Y series processors will also be delivered.

A shiny wafer full of refreshed parts of Kaby Lake.

Intel has confirmed that at least some of them will be 10nm parts, suggesting that they use the next-generation Cannonlake architecture. The most likely candidates here are the smallest Y-series processors as this would maximize the performance of the new 10nm process. Accordingly, the “eighth generation” will include Kaby Lake refresh, Coffee Lake and Cannonlake, built on 14+, 14 ++ and 10nm processes. All of this means that the “Eighth Generation” label doesn’t really matter.

Intel introduced Skylake, the sixth generation processors, in August 2015. Skylake is a redesign of the same 14nm technology that was introduced in Broadwell, the fifth generation architecture.

Intel Launches 7th Generation Kaby Lake: 15W/28W with Iris, 35-91W Desktop and Mobile Xeon

the death of Intel “Tick-Tock” means Kaby Lake is Intel’s third fracture in the 14nm process. The 14nm started at Broadwell (5th gen tick) introduced a new microarchitecture in Skylake (6th gen tock) and is now in the “optimization” stage with Kaby Lake (7th gen). This means an improved “14nm Plus” offering better energy efficiency and higher frequencies due to a less stressed transistor layout. Intel is launching countless SKUs under Kaby Lake, from the 15W and 28W mobile KBL-U to the 45W mobile KBL-H and the desktop-class KBL-S 35W to 91W. Includes are three overclocking SKUs for desktop computers, including the i3 variant. Here is the front page of the AnandTech premiere of Kaby Lake.

Despite what has been posted elsewhere on the Internet, today it is the second official launch of Kaby Lake, the first in September with six mobile processors currently in the premium notebook and mini-PC category. As part of the “trial run”, these six processors look promising, with 25 more entering the wider market.

Kaby Lake’s main features include Optane memory support, a range of new 200 series chipsets to support CPUs, a Gen9 graphics update to include Main10 support and other lower power hardware accelerated video playback, as well as tweaks to base silicon for a better voltage frequency curve.

Tick Tock Boom

Intel’s “Tick-Tock” tenure is gone, as we’ve written several times before, and Kaby Lake is Intel’s first wave of “Optimization” step in their “Process, Architecture, Optimization” release structure. The goal of the first two steps in this trio has been well documented over the last decade of Intel releases: process change means a reduction in the minimum size of a silicon function (and is possibly Intel’s prime R&D focus), such as from 90nm to 65nm or 22nm to 14nm and “architecture” indicates an improvement to the basic microarchitecture, typically using the new process in the previous step. Both of these steps, with the exception of a significant paradigm shift in the microarchitecture, resulted in performance jumps of 5-15% in each iteration. Also based on yield, usually the smaller tokens hit the market first.

The optimization step is a relative unknown as the term can be defined somewhat in many different contexts when it comes to semiconductor design. The optimization may be an adaptation to the underlying microarchitecture giving it more support, or an adaptation of the silicon production process for better performance, or it may be a different set of SKUs for a changing market, or it may be an updated internal graphics implementation. There are many ways that Intel can use the optimization card, and when its seventh generation CPUs are introduced, it comes up as a series of features.

At this point, I should mention the premiere of Devil’s Canyon i5-4690K and i7-4790K, which were outside the cycle of new overclocking products premieres. While Intel advertised this as an “optimization” of the current design, technically it was not part of the PAO tenure. Most of Devil’s Canyon’s optimizations were for heat management, not any other significant change, while the “Optimization” label for Kaby Lake is a real physical change to silicon.

The first thing to note and perhaps the most interest to our readers is that while there has been a shift in silicon, there is no fundamental shift in microarchitecture. As a result, Intel does not promote any performance difference over the previous generation (Skylake, 6th generation, SKL) at a given frequency. However, they promote better performance which means it should do the same with less power or offer better points on the voltage frequency curve. The motto should be ‘do more with less’.

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