Instances›AWS EC2›m8i-flex›m8i-flex.xlarge
Compute
vCPUs4
Memory16 GiB
Mem / vCPU4.00 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
m8i-flex.large2 vCPU · 8 GiB
m8i-flex.xlarge4 vCPU · 16 GiB
m8i-flex.2xlarge8 vCPU · 32 GiB
m8i-flex.4xlarge16 vCPU · 64 GiB
m8i-flex.8xlarge32 vCPU · 128 GiB
m8i-flex.12xlarge48 vCPU · 192 GiB
m8i-flex.16xlarge64 vCPU · 256 GiB
m8i-flex.xlarge

The m8i-flex.xlarge is a general-purpose AWS EC2 instance: 4 vCPU and 16 GiB of memory, 4.00 GiB per vCPU. It runs on Intel Xeon Scalable (Granite Rapids) at 3.9 GHz, and AWS introduced it in August 2025. Rackspace Spot's gp.vs2.large is a like-for-like substitute at 4 vCPU and 16 GiB, about 95% 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$0.201$0.071$0.011
$0.190 savings
US Central, Chicagono AWS region$0.011
US Central, Dallasno AWS region$0.021
Hong Kong$0.011
Sydney, Australia$0.251$0.081$0.011
$0.240 savings
London, UK$0.233$0.069$0.026
$0.207 savings
US West, San Jose$0.235$0.060$0.041
$0.194 savings
US Central, Dallas 2no AWS region$0.041
US East, N. Virginia 2$0.201$0.071$0.041
$0.160 savings
When to use it
Good for
  • ●Small to mid-size relational databases
  • ●Backend services with no single dominant resource
  • ●Queue workers and scheduled jobs
  • ●Workloads that fit inside 16 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
  • ●The working set needs more than 16 GiB of RAM
  • ●More than 4.00 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
  • ●GPU or FPGA acceleration is needed
  • ●Sustained full-core CPU load. A compute-optimized family costs less per unit of work.
$147/mo on AWS on-demand against $8/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.
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Frequently asked questions