Instances›AWS EC2›c7i-flex›c7i-flex.2xlarge
Compute
vCPUs8
Memory16 GiB
Mem / vCPU2.00 GiB
ProcessorXeon Scalable
Clock speed3.2 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
c7i-flex.large2 vCPU · 4 GiB
c7i-flex.xlarge4 vCPU · 8 GiB
c7i-flex.2xlarge8 vCPU · 16 GiB
c7i-flex.4xlarge16 vCPU · 32 GiB
c7i-flex.8xlarge32 vCPU · 64 GiB
c7i-flex.12xlarge48 vCPU · 96 GiB
c7i-flex.16xlarge64 vCPU · 128 GiB
c7i-flex.2xlarge

The c7i-flex.2xlarge is a compute-optimized AWS EC2 instance: 8 vCPU and 16 GiB of memory, 2.00 GiB per vCPU. It runs on Intel Xeon Scalable (Sapphire Rapids) at 3.2 GHz, and AWS introduced it in May 2024. Rackspace Spot's ch.vs2.xlarge is a like-for-like substitute at 8 vCPU and 16 GiB, $0.339/hr on AWS in US East (N. Virginia), from $0.006/hr on Rackspace Spot.

Pricing by region
1 hr
RegionAWS on-demandAWS Spot1-yr Reserved3-yr ReservedRackspace SpotYou save
US East, N. Virginia$0.339$0.134$0.224$0.149$0.006
$0.333 savings
US Central, Chicagono AWS region$0.061
US Central, Dallasno AWS region$0.041
Hong Kong$0.431$0.285$0.196$0.061
$0.370 savings
Sydney, Australia$0.443$0.195$0.292$0.201$0.016
$0.427 savings
London, UK$0.403$0.064$0.266$0.183$0.021
$0.382 savings
US West, San Jose$0.423$0.154$0.279$0.192$0.001
$0.422 savings
US Central, Dallas 2no AWS region$0.061
US East, N. Virginia 2$0.339$0.134$0.224$0.149$0.081
$0.258 savings
When to use it
Good for
  • ●Scientific modelling and simulation
  • ●Ad serving and real-time bidding
  • ●Game servers and matchmaking
  • ●Workloads that fit inside 16 GiB of RAM
  • ●Parallel work that can occupy 8 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 2.00 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
  • ●Memory-hungry applications. A memory-optimized family gives more RAM per dollar.
Stop overpaying AWS. This compute costs $248/mo on AWS vs $4/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.
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