One of the surprises from AMD’s first year of the newest x86 Zen architecture was the launch of the Threadripper platform. Despite the mainstream Ryzen processors already taking a devastating stab into the high-end desktop market, AMD’s Threadripper offered more cores at a workstation-friendly price. For 2018, the next generation is going to be using AMD’s updated 12nm Zeppelin dies, as well as including a few new tweaks into the system including better boost and faster caches.

This article is still a work in progress, and will be updated as more news comes in.

AMD’s Zeppelin silicon has 8 cores, and the first generation Threadripper uses two of them to get to the top-SKU of 16-cores. Inside the CPU however, there are four pieces of silicon: two active and two inactive. For this second generation of Threadripper, called Threadripper 2 or the Threadripper 2000-series, AMD is going to make these inactive dies into active ones, and substantially increase the core count for the high-end desktop and workstation user.

At the AMD press event at Computex, it was revealed that these new processors would have up to 32 cores in total, mirroring the 32-core versions of EPYC. On EPYC, those processors have four active dies, with eight active cores on each die (four for each CCX). On EPYC however, there are eight memory channels, and AMD’s X399 platform only has support for four channels. For the first generation this meant that each of the two active die would have two memory channels attached – in the second generation Threadripper this is still the case: the two now ‘active’ parts of the chip do not have direct memory access.

This technically adds latency to the platform, however AMD is of the impression that for all but the most memory bound tasks, this should not be an issue (usually it is suggested to just go buy an EPYC for those workloads). While it does put more pressure on the internal Infinity Fabric, AMD ultimately designed Infinity Fabric for scalable scenarios like this between different silicon with different levels of cache and memory access.

Update: AMD has just published a full copy of their slide deck for the Threadripper 2 presentation. In it are a few interesting factoids.

AMD Threadripper CPUs
  Threadripper
2
32-Core Sample
Threadripper
2
24-Core Sample
Threadripper
1950X
Threadripper
1920X
Socket TR4 (LGA)
4094-pin
CPU Architecture Zen+ Zen+ Zen Zen
Cores/Threads 32 / 64 24 / 48 16 / 32 12 / 24
Base Frequency 3.0 GHz 3.0 GHz 3.4 GHz 3.5 GHz
Turbo Frequency 3.4 GHz (WIP) 3.4 GHz (WIP) 4.0 GHz 4.0 GHz
L3 Cache 64 MB ? 48 MB ? 32 MB 32 MB
TDP 250W 250W 180W 180W
PCIe 3.0 Lanes 60 + 4
Chipset Support X399
Memory Channels 4
  1. Both the 24-core and 32-core sample CPUs are clocked at 3.0GHz base and 3.4GHz all-core turbo, with the latter being a work-in-progress according to the company.
  2. The 32-core system was equipped with DDR4-3200 memory. This is notable because the Ryzen processors based on the same 12nm Zeppelin dies officially max out at DDR4-2933.
  3. The codename for the processor family is listed as "Colfax". This is the first we've heard this codename from AMD.
  4. Despite the high TDP, both CPUs used in AMD's demos were air-cooled, using AMD's Wraith Ripper Air Cooler

Also announced at the presentation is the state of play of motherboards. According to the motherboard vendors These new Threadripper 2000-series processors will have a peak TDP rating of 250W, which is much higher than 180W we saw on the 1950X. We have been told by partners that the 250W rating is actually conservative, and users should expect lower power consumption in most scenarios. Nonetheless, it was stated by several motherboard vendors that some of the current X399 motherboards on the market might struggle with power delivery to the new parts, and so we are likely to see a motherboard refresh. That is not saying that the current X399 offerings will not work, however they might not offer overclocking to the level that users might expect. At Computex there are new X399 refresh motherboards being demonstrated by a few companies, and we will report on them in due course. Other specifications are expected to match the previous generation, such as PCIe lane counts, despite the newly active dies.


MSI's 19-phase X399 Refresh Motherboard

The launch for these new processors, according to our moles is in early August. This aligns with what AMD stated at the beginning of the year at CES, and is almost a year from the original Threadripper launch.

Pricing on the processors is set to be revealed either today or closer to the launch time. We will update this piece as more information comes in.

It will be interesting if AMD is going to go through the ‘unboxing’ embargo this time around, or just jump straight to full performance reviews. As always, come to AnandTech for the full story.


GIGABYTE's new X399 Refresh Motherboard

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  • BaldFat - Wednesday, June 6, 2018 - link

    Yes a $8,700+ CPU from Intel will beat the $1,200???? AMD Threadripper. Reply
  • HStewart - Wednesday, June 6, 2018 - link

    There is no idea what the price will be - I am hoping they removed AVX-512 from lower the price and have 2 versions - all depends on how much performance difference is with TR 32 Reply
  • Tewt - Wednesday, June 6, 2018 - link

    Interesting, first comment is the same as over on techpowerup. Either a rabid fan or Intel doing PR control. Reply
  • Tewt - Wednesday, June 6, 2018 - link

    Also, AMD releases 32 core Threadripper CPU working on AIR cooling along with announcement of X399 boards. Intel uses liquid cooling, cobbled together motherboard that looks like a college project and no known motherboards waiting to be released and you prefer Intel? ROFL Reply
  • SIDESIDE - Wednesday, June 6, 2018 - link

    Eh I dont belive that for a second. Intel's current gen 18 core has to be overclocked to pulling nearly 400 watts to compete with the old threadripper with LESS CORES, now that amd has 12nm plus double the cores, I find it impossible to believe intel's old xeon re-branded as a consumer product is going to do better than their existing 18 core. As everyone else has pointed out, that score is because of the cooling they used, not the old stinky xeon. Reply
  • ChristopherFortineux - Friday, June 8, 2018 - link

    If this CPU scores even double a stock 1950x in CB. It will get over 6k.. Reply
  • Flunk - Tuesday, June 5, 2018 - link

    32 cores? That's the sort of thing we never would have got from Intel if AMD wasn't pushing them. Reply
  • rhysiam - Wednesday, June 6, 2018 - link

    Ah, this is an AMD CPU. Intel's current offerings top out at 28 cores. Reply
  • HStewart - Wednesday, June 6, 2018 - link

    It is not the number of cores that makes the difference - one must also take in account of the core speed and technology in the core. Reply
  • coder543 - Tuesday, June 5, 2018 - link

    After Intel spent all day hyping up their 28-core desktop processor that seems to require exotic VRMs, cooling, and everything else... AMD introduces a 32-core desktop processor that can drop into existing ThreadRipper 1 motherboards. I find that funny. Reply

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