Coffee Lake Desktop Processors

The final part of the launch is focused around filling out the processor line-up for the desktop. Intel launched six Coffee Lake-based desktop processors back in October, so we have had almost a five month wait for the rest of the line to see the light of day. In this batch of processors we see the regular and low powered processors that normally sit in Intel’s strategy, as well as a number of Pentium and Celeron parts.

AnandTech Cores TDP Freq L3 vPro DRAM
Core i7-8700K $359 6 / 12 95 W 3.7 / 4.7 12 MB No 2666 24 EUs 1200
Core i7-8700 $303 6 / 12 65 W 3.2 / 4.6 12 MB Yes 2666 24 EUs 1200
Core i7-8700T* $303 6 / 12 35 W 2.4 / 4.0 12 MB Yes 2666 24 EUs 1200

For the Core i7 family, the new entrant is the Core i7-8700T. This will be the only six-core processor, with hyperthreading, to fall into the 35W bracket. It features the full L3 cache support, dual channel memory up to DDR4-2666, and is eligible for vPro support. It is worth noting that the 35W TDP value is only valid when the CPU is at its base frequency, which in this case is 2.4 GHz. At the peak turbo of 4.0 GHz, or for all-cores somewhere in the middle (again, Intel won’t specify), the power will obviously be higher.

AnandTech Cores TDP Freq L3 vPro DRAM
Core i5-8600K $257 6 / 6 95 W 3.6 / 4.3 9 MB No 2666 24 EUs 1150
Core i5-8600* $213 6 / 6 65 W 3.1 / 4.3 9 MB Yes 2666 24 EUs 1150
Core i5-8600T* $213 6 / 6 35 W 2.3 / 3.7 9 MB Yes 2666 24 EUs 1150
Core i5-8500* $192 6 / 6 65 W 3.0 / 4.1 9 MB Yes 2666 24 EUs 1100
Core i5-8500T* $192 6 / 6 35 W 2.1 / 3.5 9 MB Yes 2666 24 EUs 1100
Core i5-8400 $182 6 / 6 65 W 2.8 / 4.0 9 MB No 2666 24 EUs 1050
Core i5-8400T* $192 6 / 6 35 W 1.7 / 3.3 9 MB No 2666 24 EUs 1050

In the Core i5, most of the parts are new. As with the Core i5 desktop parts that are already launched, these have six-cores but do not have multithreading. They have a reduced L3 cache per core compared to the Core i7, and it is worth noting that the base frequency for the processors does not actually get that high – only 3.1 GHz for the Core i5-8600. All of the parts support dual channel DDR4-2666, and all but one processor supports vPro.

AnandTech Cores TDP Freq L3 vPro DRAM
Core i3-8350K $168 4 / 4 91 W 4.0 8 MB No 2400 23 EUs 1150
Core i3-8300* $138 4 / 4 65 W 3.7 8 MB No 2400 23 EUs 1150
Core i3-8300T* $138 4 / 4 35 W 3.2 8 MB No 2400 23 EUs 1100
Core i3-8100 $117 4 / 4 65 W 3.6 6 MB No 2400 23 EUs 1100
Core i3-8100T* $117 4 / 4 35 W 3.1 6 MB No 2400 23 EUs  1100

There are only three new members of the Core i3 section, all of which are quad-core processors. The two Core i3-8300/T parts have the peak 2MB L3 per core, while the Core i3-8100T only has 1.5 MB L3 per core. These parts are all reduced in memory frequency as well, supporting dual-channel DDR4-2400. Intel has no vPro parts in the Core i3 line, but all the Core i3 SKUs will support Optane.

AnandTech Cores TDP Freq L3 DRAM
Pentium Gold G5600 $86 2 / 4 54 W 3.9 4 MB 2400 UHD 630 350 / 1100
Pentium Gold G5500 $75 2 / 4 54 W 3.8 4 MB 2400 UHD 630 350 / 1100
Pentium Gold G5500T $75 2 / 4 35 W 3.2 4 MB 2400 UHD 630 350 / 1100
Pentium Gold G5400 $64 2 / 4 54 W 3.7 4 MB 2400 UHD 630 350 / 1050
Pentium Gold G5400T $64 2 / 4 35 W 3.1 4 MB 2400 UHD 630 350 / 1050

The Pentium Gold processors fit in where the older Core i3 processors once stood: dual core with hyperthreading. Intel rates the ‘full speed’ models at 54W, while the lower-power T-models are at 35W. One of the bigger disadvantages of these parts is the lack of Optane support, plus also the DDR4-2400 memory support, however they do fill up the lower cost market. Intel differentiates the Pentium Gold as having the latest Core microarchitecture compared to Pentium Silver which uses the Atom core design.

AnandTech Cores TDP Freq L3 DRAM
Celeron G4920 $52 2 / 2 54 W 3.2 2 MB 2400 UHD 610 350 / 1050
Celeron G4900 $42 2 / 2 54 W 3.1 2 MB 2400 UHD 610 350 / 1050
Celeron G4900T $42 2 / 2 35 W 2.9 2 MB 2400 UHD 610 350 / 1000

No real fancy words for Celeron here: these are Intel’s dual core designs for the cheapest Intel-based PCs. Just pair one up with a H310 motherboard, a single stick of memory, and a cheap HDD, and there’s a PC. What is different is that Intel has dropped the 'G' in the SKU name in the document they gave us (such as G4920). We have seen other documents from Intel that have the G, so we need see why there is a discrepancy.

Update: ARK confirms that all the Celerons have 'G' in the name.

* New Parts

** Blank spots in tables will be filled in as we get information

Per-Core Turbo Ratios

Due to some sleuthing, and despite Intel's insistence these are proprietary information, we have all the official per-core turbo ratios for this processors.

The most interesting element to these values are the 35W low-powered T processors. In each case, the all core turbo is much, much higher than the base frequency. For example, the Core i5-8400T has a base frequency of 1.70 GHz, but the all-core turbo is set at 3.0 GHz - almost double. Given the fact that TDP is defined at the base frequency, it is quite clear that the all-core turbo mode suggested to motherboard manufacturers is going to blow that 35W limit on the i5-8400T.

High-Performance Mobile: Coffee Lake with Iris Plus at 28W New Optane Branding: Core i9+, Core i7+, Core i5+
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  • HStewart - Saturday, April 7, 2018 - link

    "It took a few years before big programs like Photoshop had native Mac Intel ports."

    Wrong... Photoshop originally was created on Mac and later ported to Windows.

    ARM MacBook would have many challenges - it would also have to be able to run Windows programs and more importantly able to recompile applications for OS on the same machine.

    Apple has rumors of attempting an ARM based Mac - but so far ARM is using in display controllers for 5K screens and in iOS products. Apples wants people to believe that iPad Pro's are PC replacements - but they no more that glorified iPad's. The new iPad is good example of this and has same Apple Pencil and probably faster that original iPad Pro.
  • serendip - Sunday, April 8, 2018 - link

    I remember using Photoshop on the first Intel Macbook in 2006, it was translated from PowerPC code using Rosetta. This was in OS X, not Windows. The OS X Intel (Universal) port arrived two years later. The translated version was surprisingly bearable to use on a Macbook even when compared to the PowerPC native port running on a top-spec G4 Powerbook.

    Rosetta saved the translated code so it wouldn't be so slow on subsequent running. Apple could do the same thing to get OS X Intel code working on an ARM Macbook, just like what Qualcomm and Microsoft are doing on Windows Snapdragon PCs.

    As for coding, Xcode has iOS ARM targets so adding a MacOS ARM variant shouldn't be difficult. I'm not sure about Windows on ARM Macbooks though. Apple might be willing to drive away that user segment because it's so small and niche.
  • FunBunny2 - Tuesday, April 3, 2018 - link

    "A non Intel based Mac will never replace high end mac"

    again. they've been on 3 processors so far.
  • HStewart - Saturday, April 7, 2018 - link

    I believe Apple makes it's announcements in June They would be foolish not to release the 6 core mobile MacBook Pro update - they would not wanted to compete with new Windows notebooks using 6 cores.

    On the Apple move for own CPU, I think it only going release in low end Mac line if so - possible in the iOS line. Apple has always blindly want people to believe iPad Pro are desktop replacements - but until those devices can actually successfully run the Mac development tools that allow developers to create iOS applications, Apple is dream - in any ask espected processing power is expected to be very limited.

    Another big concern that Mac line has to live with Windows compatibily - Mac are good for limited purpose - which Apple has been very good at - primary in schools - but also in graphics industry but that is no longer the case. There are other options - especially in schools.
  • Tyler_Durden_83 - Tuesday, April 3, 2018 - link

    Which sku do you think will power the next nucs (the normal ones, not the gaming oriented hades canyon ofc).
  • TheBestPessimist - Tuesday, April 3, 2018 - link

    +1 i'd love to know that as well.
  • abrowne1993 - Tuesday, April 3, 2018 - link

    I don't understand the designation of certain chips as i3, i5, i7, i9 on mobile recently. At least on desktop you can immediately identify how many cores and threads they have (outside of HEDT). It seems so arbitrary on mobile now.
  • DanNeely - Tuesday, April 3, 2018 - link

    It's always been a lot more arbitrary on mobile with significant spec differences at each branding level depending on the TDP.
  • edzieba - Tuesday, April 3, 2018 - link

    Absence of Z390 is interesting, many were expecting that alongside the H/Q/B PCHs.
  • FunBunny2 - Tuesday, April 3, 2018 - link

    they really ought to come up with a different name. this one is a mashup of ancient IBM Big Iron. not, I'd wager, the image they seek.

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