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
DDR4
iGPU iGPU
Turbo
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
DDR4
iGPU iGPU
Turbo
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
DDR4
iGPU iGPU
Turbo
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
DDR4
iGPU iGPU
Turbo
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
DDR4
iGPU iGPU
Turbo
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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  • TheBestPessimist - Tuesday, April 03, 2018 - link

    +1 i'd love to know that as well. Reply
  • abrowne1993 - Tuesday, April 03, 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. Reply
  • DanNeely - Tuesday, April 03, 2018 - link

    It's always been a lot more arbitrary on mobile with significant spec differences at each branding level depending on the TDP. Reply
  • edzieba - Tuesday, April 03, 2018 - link

    Absence of Z390 is interesting, many were expecting that alongside the H/Q/B PCHs. Reply
  • FunBunny2 - Tuesday, April 03, 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. Reply
  • wr3zzz - Tuesday, April 03, 2018 - link

    What is the target market for the new T-series chips? It's the same price as the chip with iGPU and the lower TDP comes at the cost of lower clock and still no overclocking. Reply
  • A5 - Tuesday, April 03, 2018 - link

    OEM SFF boxes, like the Dell Optiplex Micro series. Reply
  • xrror - Tuesday, April 03, 2018 - link

    i9. Mobile. 6 core with no HT.

    Intel ... the i9 branding already is a tortured SKU name. Anything i9 should be auto-badass awesome insaneballs SKU.

    Instead, we get the insult that i9 is not only brought back for ANY SKU, but a mobile SKU. Which is already lying BS marketing SKU (hey, a mobile i7 is actually 2 real cores + HT which in desktop land is a low end i3 but who cares! marketing!).

    While a mobile coffee lake native 6 core with no HT WOULD have been impressive (assuming no tard low base speed) as a very high i5 or i7 mobile... resurrecting the tortured i9 branding with anything less than 12 cores (of any dam*** sort) is insulting.

    FU intel. And FU to all the folks who gobble this up at a premium cause 9 > 7 in mobile land which enables Intel Marketing to justify this ****
    Reply
  • xrror - Tuesday, April 03, 2018 - link

    I just have to add, the cynicism in this article from Ian is amazing. That's no insult or judgement - just "holy moly, it's so bad even finally it broke through."

    I don't want to face the reality that PC hardware doesn't mean anything to the average (mass market - quantity) buyer when purchasing their next disposable facebook terminal....

    I don't. .. . .. ... .. *cry*
    Reply
  • close - Wednesday, April 04, 2018 - link

    It's so bad even AT is kicking Intel to the curb :). Reply

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