Instances›AWS EC2›i4i›i4i.xlarge
Compute
vCPUs4
Memory32 GiB
Mem / vCPU8.00 GiB
ProcessorXeon 8375C
Clock speed3.5 GHz
Architecturex86_64
Storage
Type1 × 937 GB NVMe SSD
Bandwidth10,000 Mbps
Throughput1250 MB/s
IOPS40,000
Networking
PerformanceUp to 10 Gigabit
Max ENIs4
IPv6Yes
GPUNone
Family sizes
i4i.large2 vCPU · 16 GiB
i4i.xlarge4 vCPU · 32 GiB
i4i.2xlarge8 vCPU · 64 GiB
i4i.4xlarge16 vCPU · 128 GiB
i4i.8xlarge32 vCPU · 256 GiB
i4i.12xlarge48 vCPU · 384 GiB
i4i.16xlarge64 vCPU · 512 GiB
i4i.24xlarge96 vCPU · 768 GiB
i4i.32xlarge128 vCPU · 1024 GiB
i4i.metal128 vCPU · 1024 GiB
i4i.xlarge

The i4i.xlarge pairs 4 vCPU with 32 GiB of RAM, the 8.00 GiB-per-vCPU ratio that marks a storage-optimized instance. In the name, "i" is I/O, meaning local storage, "4" is the generation, "i" marks Intel processors and "xlarge" is the size within the i4i family. It runs on Intel Xeon 8375C (Ice Lake) at 3.5 GHz, and AWS introduced it in April 2022. AWS has since shipped i7i and i8g; i7i.xlarge is the direct replacement at this size, scoring 99,482 CoreMark/s against this instance's 66,786 — roughly 49% more throughput for the same vCPU count. mh.vs1.large on Rackspace Spot lines up one-for-one: 4 vCPU and 32 GiB, about 94% below the US East (N. Virginia) on-demand rate.

Match qualityNo local disk

i4i.xlarge comes with 1 × 937 GB NVMe SSD attached to the machine. Rackspace Spot nodes use network storage only, so that disk does not come with it.

If you were using the local disk as fast scratch space — temporary files, a local cache, an index — you will need a persistent volume or object storage instead, and both are slower to read. If it was just extra space you never depended on, nothing changes.

Pricing by region
1 hr
RegionAWS on-demandAWS Spot1-yr Reserved3-yr ReservedRackspace SpotYou save
US East, N. Virginia$0.343$0.093$0.223$0.159$0.021
$0.322 savings
US Central, Chicagono AWS region$0.061
US Central, Dallasno AWS region$0.021
Hong Kong$0.453$0.295$0.210$0.006
$0.447 savings
Sydney, Australia$0.411$0.122$0.269$0.191$0.006
$0.405 savings
London, UK$0.398$0.066$0.260$0.184$0.006
$0.392 savings
US West, San Jose$0.378$0.086$0.247$0.175$0.061
$0.317 savings
US Central, Dallas 2no AWS region$0.061
When to use it
Good for
  • ●Transactional databases with heavy random I/O
  • ●Streaming ingest that spools to local disk
  • ●Elasticsearch and OpenSearch data nodes
  • ●Workloads that fit inside 32 GiB of RAM
  • ●Jobs that want 1 × 937 GB of local NVMe scratch space
  • ●Network-heavy services — AWS rates this size at Up to 10 Gigabit
Avoid if
  • ●Starting a new deployment. i7i.xlarge is the newer generation at this size.
  • ●The working set needs more than 32 GiB of RAM
  • ●GPU or FPGA acceleration is needed
  • ●Workloads that never touch local disk. The instance-store premium is wasted.
  • ●More than 8.00 GiB of RAM per vCPU is needed — that ratio is fixed for the whole family
i4i.xlarge runs $250/mo on AWS on-demand. The equivalent on Rackspace Spot: $15/mo.
  • 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.
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