Instances›AWS EC2›r7iz›r7iz.xlarge
Compute
vCPUs4
Memory32 GiB
Mem / vCPU8.00 GiB
ProcessorXeon Scalable
Clock speed3.9 GHz
Architecturex86_64
Storage
TypeEBS only
Bandwidth10,000 Mbps
Throughput1250 MB/s
IOPS40,000
Networking
PerformanceUp to 12.5 Gigabit
Max ENIs4
IPv6Yes
GPUNone
Family sizes
r7iz.large2 vCPU · 16 GiB
r7iz.xlarge4 vCPU · 32 GiB
r7iz.2xlarge8 vCPU · 64 GiB
r7iz.4xlarge16 vCPU · 128 GiB
r7iz.8xlarge32 vCPU · 256 GiB
r7iz.12xlarge48 vCPU · 384 GiB
r7iz.16xlarge64 vCPU · 512 GiB
r7iz.metal-16xl64 vCPU · 512 GiB
r7iz.32xlarge128 vCPU · 1024 GiB
r7iz.metal-32xl128 vCPU · 1024 GiB
r7iz.xlarge

The r7iz.xlarge is a memory-optimized AWS EC2 instance: 4 vCPU and 32 GiB of memory, 8.00 GiB per vCPU. In the name, "r" stands for RAM, "7" is the generation, "iz" marks Intel processors and a higher clock and "xlarge" is the size within the r7iz family. It runs on Intel Xeon Scalable (Sapphire Rapids) at 3.9 GHz, and AWS introduced it in September 2023. AWS has since shipped r8i and r9g; r8i.xlarge is the direct replacement at this size. Rackspace Spot's mh.vs2.large is a like-for-like substitute at 4 vCPU and 32 GiB, about 94% below the US East (N. Virginia) on-demand rate.

Pricing by region
1 hr
RegionAWS on-demandAWS Spot1-yr Reserved3-yr ReservedRackspace SpotYou save
US East, N. Virginia$0.372$0.133$0.234$0.153$0.021
$0.351 savings
US Central, Chicagono AWS region$0.061
US Central, Dallasno AWS region$0.021
Hong Kong$0.006
Sydney, Australia$0.006
London, UK$0.006
US West, San Jose$0.061
US Central, Dallas 2no AWS region$0.061
When to use it
Good for
  • ●Real-time analytics over hot datasets
  • ●Database instances that keep the working set in RAM
  • ●Graph and search workloads with large indexes
  • ●Workloads that fit inside 32 GiB of RAM
  • ●Small, steady services that do not need more than 4 vCPU
  • ●Network-heavy services — AWS rates this size at Up to 12.5 Gigabit
Avoid if
  • ●Starting a new deployment. r8i.xlarge is the newer generation at this size.
  • ●The working set needs more than 32 GiB of RAM
  • ●GPU or FPGA acceleration is needed
  • ●CPU-bound work. You are paying for memory this workload will not use.
  • ●More than 8.00 GiB of RAM per vCPU is needed — that ratio is fixed for the whole family
  • ●Local NVMe or instance-store disk is a hard requirement
$272/mo on AWS on-demand against $15/mo on Rackspace Spot for the equivalent — market-priced, not list-priced.
  • Spot sells spare capacity at market prices. It is the cheapest compute on the internet.
  • Prices are set by supply and demand. You pay what the market decides.
  • Compute is delivered as fully managed Kubernetes. All infrastructure is taken care of.
  • Egress costs $0.01/GB after the free allowance. AWS charges $0.09/GB.
Build your Cloudspace
Frequently asked questions