If there’s something that gets everyone excited, it is more performance. On the Enterprise side, AMD has made big strides with its latest EPYC processor stack, featuring up to 64 cores per socket with 128 PCIe 4.0 lanes and 8-channel memory, featuring a very high performance per dollar in the marketplace. In order to coincide with the launch of the processor line-up in Europe today, AMD is unveiling a new chip to act as the new Halo product: the EPYC 7H12.

The new processor features a higher base frequency and a higher boost frequency that the previous top-of-the-line processor, the EPYC 7742. The new EPYC 7H12 has a rated TDP of 280W, and as a result the chip is being marketed for server environments that offer liquid cooled solutions only. AMD is very specific about this, especially in the market for which this CPU is aimed at. One of AMD’s main partners, Atos, is set to offer an 1U solution featuring eight of these CPUs, all liquid cooled.

AMD EPYC 7002 Processors (2P)
Frequency (GHz) L3* TDP Price
Base Max
EPYC 7H12 64 / 128 2.60 3.30 256 MB 280 W ?
EPYC 7742 64 / 128 2.25 3.40 256 MB 225 W $6950
EPYC 7702 64 / 128 2.00 3.35 256 MB 200 W $6450
EPYC 7642 48 / 96 2.30 3.20 256 MB 225 W $4775
EPYC 7552 48 / 96 2.20 3.30 192 MB 200 W $4025

For a base frequency, the EPYC 7H12 will be set at 2.6 GHz, and a turbo frequency of 3.3 GHz. Compared to the EPYC 7742, that’s +350 MHz on base and -100 MHz on turbo, for an increase in +55W TDP. The higher TDP means the 7H12 is expected to have an all-core turbo a lot higher than the 7742. The EPYC 7H12 is socket compatible with all other Rome processors.

With this new CPU, AMD is clearly going after the high-performance compute market. The chip still affords the same specifications as the rest of the stack, such as the PCIe lanes, the memory support, and security features, should any other market be interested, but AMD expects this CPU to be installed in large HPC datacenters. AMD published raw LINPACK metrics with a performance uplift of the 7H12 over the 7742 at around 11%.

We asked AMD if this is a chip designed for specific partners who can enable liquid cooling servers, or for any OEM that wants it. AMD responded stating the latter – this chip will have general availability, but given the target market, they are pushing it only for liquid cooled HPC systems. AMD states they have other processors better suited to certain other fields, such as finance.

We expect AMD’s OEM partners to be evaluating the 7H12 for their system offerings, with further announcements in due course.

Related Reading



Comments Locked


View All Comments

  • Zoolook13 - Friday, September 20, 2019 - link

    In Sweden all the main cloud providers are building massive complexes and hooking them up to municipal district heating systems, selling the heat they create.
    Quite a few are also built in the north of Sweden where the outside temperature is below freezing for 6 months/year, cheap cooling and selling the heat combined with plenty of renewable energy equals great operating costs.
  • mikegrok - Friday, September 20, 2019 - link

    When you buy a system that will go into a data center, you often price the machine that you are going to install at 3 to 5 years of it's operating cost.

    When paying for power in the data center, you usually get charged about triple, because for every kw of power consumed, it may take 2kw of power to chill the air to it's initial temperature. This is where the benefit of water cooling comes into play.

    A water cooled CPU does not need the inlet water temperature to be the same as the air temperature. In fact, a water in temperature of 140F is often acceptable. Chilling water to 140F can be accomplished using radiators and pumps nearly anywhere in the world, without the need to "chill" the water below outside ambient temperature.

    The above power reduction can drop the cost of running the CPU to 1/3, justifying installing a CPU and system that costs 3 times as much, because the budget for upkeep got moved to the hardware purchase price.

    The building will probably have several water "chillers" available for water cooled CPUs.

    Processors often have a target temperature to reach.
  • mikegrok - Friday, September 20, 2019 - link

    The above power reduction can drop the cost of running the CPU to 1/3, justifying installing a CPU and system that costs nearly double, because the budget for upkeep got moved to the hardware purchase price.
  • Ozymankos - Monday, September 23, 2019 - link

    Finally we have 128 threads processors again on our ble planet Gaia
    Let us count:
    65 nm-4 cores-Q6600
    45 nm-Nehalem Intel -8 cores
    32 nm-16 cores-Opteron from AMD
    22 nm-32 cores-Zen from AMD
    14 nm-64 cores-Epyc from AMD
    10 nm-128 cores or Threads-Epyc again
    7 nm-256 cores
    bear in mind that is advertised as being the 7 nanometer process but it is in reality 10 nanometers

Log in

Don't have an account? Sign up now