Instances›AWS EC2›i7i›i7i.4xlarge
Compute
vCPUs16
Memory128 GiB
Mem / vCPU8.00 GiB
ProcessorXeon Scalable
Clock speed3.2 GHz
Architecturex86_64
Storage
Type1 × 3,750 GB NVMe SSD
Bandwidth10,000 Mbps
Throughput1250 MB/s
IOPS40,000
Networking
PerformanceUp to 25 Gigabit
Max ENIs8
IPv6Yes
GPUNone
Family sizes
i7i.large2 vCPU · 16 GiB
i7i.xlarge4 vCPU · 32 GiB
i7i.2xlarge8 vCPU · 64 GiB
i7i.4xlarge16 vCPU · 128 GiB
i7i.8xlarge32 vCPU · 256 GiB
i7i.12xlarge48 vCPU · 384 GiB
i7i.16xlarge64 vCPU · 512 GiB
i7i.24xlarge96 vCPU · 768 GiB
i7i.metal-24xl96 vCPU · 768 GiB
i7i.48xlarge192 vCPU · 1536 GiB
i7i.metal-48xl192 vCPU · 1536 GiB
i7i.4xlarge

The i7i.4xlarge is a storage-optimized AWS EC2 instance: 16 vCPU and 128 GiB of memory, 8.00 GiB per vCPU. In the name, "i" is I/O, meaning local storage, "7" is the generation, "i" marks Intel processors and "4xlarge" is the size within the i7i family. It runs on Intel Xeon Scalable (Emerald Rapids) at 3.2 GHz, and AWS introduced it in April 2025. AWS has since shipped i8g; i8g.4xlarge is the direct replacement at this size, scoring 458,157 CoreMark/s against this instance's 365,234 — roughly 25% more throughput for the same vCPU count. Rackspace Spot's mh.vs1.2xlarge is a like-for-like substitute at 16 vCPU and 128 GiB, $1.51/hr on AWS in US East (N. Virginia), from $0.021/hr on Rackspace Spot.

Match qualityNo local disk

i7i.4xlarge comes with 1 × 3,750 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$1.510$0.522$0.021
$1.489 savings
US Central, Chicagono AWS region$0.021
US Central, Dallasno AWS region$0.131
Hong Kong$1.994$0.021
$1.973 savings
Sydney, Australia$1.810$0.585$0.021
$1.789 savings
London, UK$1.752$0.485$0.131
$1.621 savings
US West, San Jose$1.665$0.316$0.002
$1.663 savings
US Central, Dallas 2no AWS region$0.242
When to use it
Good for
  • ●Elasticsearch and OpenSearch data nodes
  • ●NoSQL stores such as Cassandra, ScyllaDB and MongoDB
  • ●Data warehousing and log processing
  • ●Workloads that fit inside 128 GiB of RAM
  • ●Jobs that want 1 × 3,750 GB of local NVMe scratch space
  • ●Network-heavy services — AWS rates this size at Up to 25 Gigabit
Avoid if
  • ●The working set needs more than 128 GiB of RAM
  • ●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
  • ●The work is single-threaded. Most of these 16 vCPU would sit idle.
  • ●GPU or FPGA acceleration is needed
Stop overpaying AWS. This compute costs $1,102/mo on AWS vs $15/mo on Rackspace Spot.
  • 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