We first got acquainted with Broadwell-DE series processors in 2015. Now, four years after the initial release of this SoC series, Intel is releasing the 1600th line of Xeon D processors, and in this article we will discuss what’s new in these processors.
Family Of Intel Xeon D-1600
Let’s see: the Intel Xeon D-1600 is the Xeon D-1500 NS with higher frequencies. The architecture, by and large, remained the same as in Xeon D-1500 NS processors, where the prefix NS means the presence of 4 network controllers with a speed of 10 GB / s.
When developing Xeon D-1600 processors, Intel had a small supply of TDP, which the company spent on increasing the frequency of cores, not their number. This means that processors will have 2 to 8 cores with frequencies up to 2.9 GHz in normal mode and up to 3.2 GHz in Turbo mode.
Since it is still the same Broadwell-DE architecture, it uses 14 nm process technology with 24 PCI Express 3.0 lines and 8 PCI Express 2.0 lines, as well as 6 SATA-600 ports. DDR4 support is limited to a frequency of 2400 GHz. That is, sui is the same processor of 2015, but with the support acceleration QAT.
Of course, the Xeon D-2100 has better performance and scalability, but it also consumes more power. In our review of the motherboard based on the Xeon D-2143, we drew attention to the fact that passive cooling of this processor is not enough, so that its use in cold network devices is limited. But at the same time, since Xeon D processors are not sold separately, the d-2100 series due to the larger number of cores is better suited for universal gateways that combine NAS + VPN gateway in one device for a small company. Officially, however, Intel sees little prospect of an upgrade Xeon D in the following way:
As you can see, the new Intel Xeon D-1600 is already targeting that area of low-power devices where the Atom C3000 processors are used.
Quickassist Technology (QAT) support)
Since Intel Xeon D targets the communications sector, processors support hardware encryption and compression offload (QAT).
Here are some official benchmarks from Intel:
You need to keep in mind that not all versions of the Intel QAT work the same way, and the first revision presented in the Intel Atom C2000 otlichayutsya from those used today in the architecture of Broadwell.
Models and prices
The new Intel Xeon D-1600 processors are electrically compatible with the Xeon D-1500 NS, which means that the current motherboard design can be used with new CPUs without modification.
This is what the industry has long expected from Intel. Many edge-level applications simply do not need more than 8 cores and support for Skylake instructions (for example, AVX-512.). With Xeon D-1500 series processors, users have always compromised due to the low clock speed of the cores, and this gap was first eliminated in the expensive Xeon D-2100 series, and now in the more affordable Xeon D-1600.
The processor will be on sale from the 2nd quarter of 2019, and will remain in the lineup of Intel for a long time.