Instances›AWS EC2›c7a›c7a.2xlarge
Compute
vCPUs8
Memory16 GiB
Mem / vCPU2.00 GiB
ProcessorEPYC 9R14 Processor
Clock speedUp to 3.7 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
c7a.medium1 vCPU · 2 GiB
c7a.large2 vCPU · 4 GiB
c7a.xlarge4 vCPU · 8 GiB
c7a.2xlarge8 vCPU · 16 GiB
c7a.4xlarge16 vCPU · 32 GiB
c7a.8xlarge32 vCPU · 64 GiB
c7a.12xlarge48 vCPU · 96 GiB
c7a.16xlarge64 vCPU · 128 GiB
c7a.24xlarge96 vCPU · 192 GiB
c7a.32xlarge128 vCPU · 256 GiB
c7a.48xlarge192 vCPU · 384 GiB
c7a.metal-48xl192 vCPU · 384 GiB
c7a.2xlarge

The c7a.2xlarge pairs 8 vCPU with 16 GiB of RAM, the 2.00 GiB-per-vCPU ratio that marks a compute-optimized instance. In the name, "c" stands for compute, "7" is the generation, "a" marks AMD processors and "2xlarge" is the size within the c7a family. It runs on AMD EPYC 9R14 Processor at Up to 3.7 GHz, and AWS introduced it in October 2023. AWS has since shipped c8a and c9g; c8a.2xlarge is the direct replacement at this size, scoring 354,872 CoreMark/s against this instance's 257,511 — roughly 38% more throughput for the same vCPU count. ch.vs2.xlarge on Rackspace Spot lines up one-for-one: 8 vCPU and 16 GiB, $0.411/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$0.411$0.146$0.272$0.181$0.006
$0.405 savings
US Central, Chicagono AWS region$0.061
US Central, Dallasno AWS region$0.041
Hong Kong$0.061
Sydney, Australia$0.016
London, UK$0.488$0.171$0.322$0.222$0.021
$0.467 savings
US West, San Jose$0.512$0.195$0.338$0.233$0.001
$0.511 savings
US Central, Dallas 2no AWS region$0.061
US East, N. Virginia 2$0.411$0.146$0.272$0.181$0.081
$0.330 savings
When to use it
Good for
  • ●Game servers and matchmaking
  • ●Batch processing and CI/CD runners
  • ●Video encoding and transcoding
  • ●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
  • ●Starting a new deployment. c8a.2xlarge is the newer generation at this size.
  • ●The working set needs more than 16 GiB of RAM
  • ●GPU or FPGA acceleration is needed
  • ●Memory-hungry applications. A memory-optimized family gives more RAM per dollar.
  • ●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
Stop overpaying AWS. This compute costs $300/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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