AWS has started running custom cuts of Intel's Xeon 6 processors and launched R8i and R8i-flex instance types. Both instance families feature DDR5 7200MT/s memory and operate at up to 3.9 GHz all-core turbo frequency. R8i variants range from two to 384 vCPUs; a single 96-core Xeon 6 yields 192 EC2 vCPUs and a two-socket server provides 384 vCPUs. Instances permit adjustable bandwidth allocation between network access and Amazon Elastic Block Store to optimize database performance. AWS recommends these instances for memory-intensive workloads such as SQL and NoSQL databases, in-memory caches, SAP HANA, Hadoop, and Spark clusters. Hyperscalers frequently use custom CPUs, benefiting Intel.
The R8i comes in variants from two to 384 vCPUs. Intel offers many Xeon 6 variants with 96 cores, which we mention as AWS counts a vCPU as one thread on an x86 processor. A single 96-core CPU therefore offers 192 EC2 vCPUs, and a two socket-server provides 384 - matching the mightiest of the R8* instance types. The instances also allow users to vary bandwidth configuration so it's allocated differently between network access and connections to Amazon's elastic block store. Doing so can apparently improve database performance.
AWS recommends its new rent-a-servers for memory intensive workloads including SQL and NoSQL databases, distributed web scale in-memory caches such as Memcached or Redis), SAP HANA, and big data tools like Apache Hadoop and Apache Spark clusters). Hyperscale clouds often run custom CPUs. Oracle has boasted of running Xeons that include a few more cores than Intel sells to other customers, and of slightly faster chips that include the ability to turn off unwanted cores.
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