Executive Summary

Intel’s 4^th gen Xeon introduces several built-in acceleration engines which have meaningful performance implications for use cases directly relevant to the modern and evolving data center. In this DfD, we’ll present a brief introduction to these accelerators and then provide a comprehensive listing of all 4th Gen Xeon FCLGA4677 socketed SKUs presently offered by Dell Technologies and what accelerator support they each provide.

Before the quick overview to explain the built-in Accelerator Engines, the following chart describes the suffixes found on Intel’s 4^th Gen Xeon processors:

Options	4th Generation Intel® Xeon® Processors
Options	(formerly Sapphire Rapids-SP)
H	Database and Analytics up to 4S and 8S depending on SKU
M	Processor specifications optimized for AI and media processing workloads
N	Network/5G/Edge
N	(High TPT /Low Latency) Processor specifications optimized for communications/networking/NFV (Network Function(s) Virtualization) workloads and operating environments
P	Processor specifications optimized for IaaS cloud environments such as orchestration efficiency in high-frequency VM environments
Q	Lower Tcase SKUs, targeted towards liquid cooling
S	Storage-optimized SKU with full accelerators enabled (DSA, QAT, DLB)
T	Support for up to 10-year reliability and support for higher Tcase. These SKUs are often used in operating environments with long-life use requirements and require Network Equipment Building System (NEBS)–Thermal friendly specification support
U	Supported in one-socket configurations only
U	Note: Some workload-optimized SKUs (N and V for example) might also be 1 socket optimized. Refer to ARK.intel.com for SKU details.
V	Processors specification optimized for SaaS cloud environments.
Y	Support for Intel® Speed Select Technology - Performance Profile (Intel® SST-PP) 2.0. Some workload-optimized SKUs (S, N, V, etc) will also support Intel® Speed Select Technology – Performance Profile 2.0. Refer to ARK.intel.com for SKU details.
+	Feature plus(+) SKU contains 1 of each accelerator enabled (DSA, DLB, QAT, IAA)

Intel’s 4^th Gen Xeon Acceleration Engines

DSA “Data Streaming Accelerator”

Intel® DSA is a high-performance data copy and transformation accelerator that will be integrated in future Intel® processors, targeted for optimizing streaming data movement and transformation operations common with applications for high-performance storage, networking, persistent memory, and various data processing applications.

IAA “In-Memory Analytics Accelerator”

The Intel® In‐Memory Analytics Accelerator (Intel® IAA) is a hardware accelerator that provides very high throughput compression and decompression combined with primitive analytic functions.

QAT “Quick Assist Technology”

Intel Quick Assist Technology is a high-performance data security and compression acceleration solution provided by Intel. This solution utilizes the QAT chip to share symmetrical/asymmetrical encryption computations, DEFLATE lossless compression, and other computation intensive tasks for lower CPU utilization and higher overall platform performance.

DLB “Dynamic Load Balancer”

Intel® DLB is a Peripheral Component Interconnect Express (PCIe) device that provides load-balanced, prioritized scheduling of events (packets) across CPU cores/threads, enabling efficient core-to-core communication. It is a hardware accelerator located inside the latest Intel® Xeon® CPUs offered by Intel. Under the hood, Intel® DLB is a hardware managed system of queues and arbiters connecting producers and consumers.