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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  • SaturnusDK - Tuesday, April 03, 2018 - link

    tl;dr. No consumer line 8-core from Intel yet. Reply
  • Tyler_Durden_83 - Tuesday, April 03, 2018 - link

    No need to rush it since Intel still has the performance crown (the best value crown is another matter ofc). Reply
  • SaturnusDK - Tuesday, April 03, 2018 - link

    Not really. The 1800X still beat the 8700K in most multi-threaded workloads. Intel has the crown for best performance if all you do is single player gaming at low resolution. That's about it. Multi-threaded workload and professional workloads Intel is behind. Gaming at higher resolution or streaming it's really a toss up. Reply
  • StevoLincolnite - Tuesday, April 03, 2018 - link

    Well. There is a rush.
    There are those who are on Westmere/Sandy Bridge/Ivy Bridge who have 6 core processors but are looking to upgrade, like myself.

    Intel's 6-core mainstream parts aren't really attractive considering I have had a 6-core processor for almost a decade, sure... I will gain a massive increase in single threaded performance... But it's nothing that a little bit of overclocking to 4.8ghz on my 3930K that couldn't make up some of that difference.

    Besides... In heavy threaded scenario's, AMD beats Intel.

    I guess I am waiting another year to upgrade. Another year Intel doesn't get my cash.
    Probably not a bad thing at the moment anyway with the price of DRAM.
    Reply
  • goatfajitas - Tuesday, April 03, 2018 - link

    "Westmere/Sandy Bridge/Ivy Bridge who have 6 core processors"

    But those were the extremely high end expensive CPU's back then. Those dont compare with todays standard consumer models, they compare with the Core i9 which has 10 cores https://ark.intel.com/products/123613/Intel-Core-i...
    Reply
  • FunBunny2 - Tuesday, April 03, 2018 - link

    "In heavy threaded scenario's, AMD beats Intel."

    which matters once we have more than a handful of multi-threaded apps. running discrete apps in background really isn't the same thing.
    Reply
  • npz - Tuesday, April 03, 2018 - link

    Virtually all productivity and real professional programs are nicely multi threaded. And running multiple discrete programs or multiple instances of the same program concurrently is very valid use of multi-threading. Think about what live game streaming involves: all different programs executing concurrently (where each may also be multithreaded): the game, the recording application, the encoder process, the streaming network application, the live audience chatroom, etc Similary with many other cases Reply
  • JackNSally - Tuesday, April 03, 2018 - link

    Professional streamers use 2 PC's. 1 for gaming, 1 to capture video and run all the programs. Reply
  • SaturnusDK - Wednesday, April 04, 2018 - link

    They only used 2 PCs because they were literally forced to. Before Ryzen the only option they had was either use very pricey HEDT set up or have a gaming PC and a streaming PC. Often the 2 PC set up would be cheaper. After Ryzen, streamer can easily get by with one PC for everything. Reply
  • 0ldman79 - Wednesday, April 04, 2018 - link

    I could stream with my old FX processor.

    The entire reason I got a 6 core was to multi task. It wasn't the best at everything, but it could do a hell of a lot all at once without slowing down my gaming.

    I regularly would record TV while encoding a video while gaming. Streaming wouldn't be a strain on the machine. It was a purpose built DVR with gaming.
    Reply

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