From AnandTech: One of the quiet announcements that came out of Apple’s new Mac Pro announcement was the launch of Intel’s next generation Xeon W processors. Aside from being completely under the radar from a formal announcement, the new line of workstation focused CPUs heralds a few quirks: they are Cascade Lake based, they are only in the LGA3647 socket, and they have 64 available PCIe 3.0 lanes.
The current Xeon W product line, based on Skylake-SP, uses the common high-end desktop socket LGA2066, but with a workstation focused chipset. These processors are available up to eighteen cores, using Intel’s HCC 18-core die as the highest it will go. The other features of these processors include quad channel memory, 512GB ECC support, and up to 48 PCIe 3.0 lanes. What Intel has done for the next generation has bump it up to the server socket, which affords more memory channels, higher TDPs, more memory supported, and a higher core count.
The new Cascade Lake-based Xeon W-3200 family will be offered up to 28 cores, using Intel’s XCC 28-core die as the base for the high-end models. As a Cascade Lake processor, the new Xeon W will come with additional in-hardware fixes for some of the Spectre and Meltdown vulnerabilities, similar to the Cascade Lake Xeon Scalable Processors. Intel has also made a substantial change in the way that it intends to market its Xeon W processors, as the new models also change socket compared to the previous generation.
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