Report: Intel Xeon D SoC to Reach 16 Cores

Subject: Processors | October 23, 2015 - 02:21 PM |
Tagged: Xeon D, SoC, rumor, report, processor, Pentium D, Intel, cpu

Intel's Xeon D SoC lineup will soon expand to include 12-core and 16-core options, after the platform launched earlier this year with the option of 4 or 8 cores for the 14 nm chips.

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The report yesterday from CPU World offers new details on the refreshed lineup which includes both Xeon D and Pentium D SoCs:

"According to our sources, Intel have made some changes to the lineup, which is now comprised of 13 Xeon D and Pentium D SKUs. Even more interesting is that Intel managed to double the maximum number of cores, and consequentially combined cache size, of Xeon D design, and the nearing Xeon D launch may include a few 12-core and 16-core models with 18 MB and 24 MB cache."

The move is not unexpected as Intel initially hinted at an expanded offering by the end of the year (emphasis added):

"...the Intel Xeon processor D-1500 product family is the first offering of a line of processors that will address a broad range of low-power, high-density infrastructure needs. Currently available with 4 or 8 cores and 128 GB of addressable memory..."

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Current Xeon D Processors

The new flagship Xeon D model will be the D-1577, a 16-core processor with between 18 and 24 MB of L3 cache (exact specifications are not yet known). These SoCs feature integrated platform controller hub (PCH), I/O, and dual 10 Gigabit Ethernet, and the initial offerings had up to a 45W TDP. It would seem likely that a model with double the core count would either necessitate a higher TDP or simply target a lower clock speed. We should know more before too long.

For futher information on Xeon D, please check out our previous coverage: 

Source: CPU-World

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October 24, 2015 | 02:21 AM - Posted by Tim Verry

This sounds cool, my first thought was on the possible increased TDP as well. More options (slower but more cores versus fewer but faster cores) are good though in any case!

October 24, 2015 | 02:22 PM - Posted by Anonymous (not verified)

Look at that Trey price for 8 Intel cores, and I'll bet AMD could get 16 Zen cores on a smaller Die using it's high density design libraries since these SKUs are designed for high density servers using more and slower cores. AMD could have a 24 Zen core low power using part using its its high density design libraries at 14nm and get even more Zen x86 cores per unit area than Intel could.

At 28nm using high density design libraries, AMD shaved off about 1/3 of the space required to implement an excavator core, and the Carrizo APU has DDR4 support. So for low clocked high density x86 server SKUs AMD could make a Zen variant that uses the high density design libraries and easily get a 45 Watt part with 24 Zen cores. Make it an interposer based SKU with HBM2 and the power savings will be even better.

AMD will have Interposer based High performance Zen based APUs using low density design libraries, and power saving low power Zen APU variants using High density design libraries on an interposer with HBM2, with GPU accelerator options for its server APUs.

Intel is making these parts to compete with the ARM based server SKUs, and AMD could take its K12 custom ARM(with SMT) SKUs and make server parts that could have even more ARMv8a ISA running cores. So AMD could use high density design libraries at 14nm and probably get 32+ custom ARM cores running at under 45 watts. AMD's interposer based GPU accelerators on the interposer along with HBM2 will have much lower clocked wide parallel interfaces that will best any of the current narrow memory channel DRAM interfaces for effective bandwidth, and the same wider CPU to GPU wide parallel connection advantage against PCI based interfaces to external GPU accelerators. Do not forget that AMD has a design for FPGAs added directly on the HBM stack(between the bottom HBM controller chip and the HBM memory stacks above) for even more dedicated computational assist in the memory for server workloads.

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February 3, 2016 | 01:14 AM - Posted by Paul Braren (not verified)

According to Supermicro, the 8 core's 45W TDP becomes 65W TDP at 16 cores, spotted at their new Xeon D page

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