Instances›AWS EC2›c6in›c6in.large
Compute
vCPUs2
Memory4 GiB
Mem / vCPU2.00 GiB
ProcessorXeon 8375C
Clock speed3.5 GHz
Architecturex86_64
Storage
TypeEBS only
Bandwidth25,000 Mbps
Throughput3125 MB/s
IOPS100,000
Networking
PerformanceUp to 25 Gigabit
Max ENIs3
IPv6Yes
GPUNone
Family sizes
c6in.large2 vCPU · 4 GiB
c6in.xlarge4 vCPU · 8 GiB
c6in.2xlarge8 vCPU · 16 GiB
c6in.4xlarge16 vCPU · 32 GiB
c6in.8xlarge32 vCPU · 64 GiB
c6in.12xlarge48 vCPU · 96 GiB
c6in.16xlarge64 vCPU · 128 GiB
c6in.24xlarge96 vCPU · 192 GiB
c6in.32xlarge128 vCPU · 256 GiB
c6in.metal128 vCPU · 256 GiB
c6in.large

c6in.large is AWS's compute-optimized EC2 size at 2 vCPU and 4 GiB. In the name, "c" stands for compute, "6" is the generation, "in" marks Intel processors and enhanced networking and "large" is the size within the c6in family. It runs on Intel Xeon 8375C (Ice Lake) at 3.5 GHz, and AWS introduced it in November 2022. AWS has since shipped c7i, c8in and c9g; c7i.large is the direct replacement at this size, scoring 39,481 CoreMark/s against this instance's 33,765 — roughly 17% more throughput for the same vCPU count. On Rackspace Spot the same shape is ch.vs2.medium — 2 vCPU, 4 GiB, matched on both dimensions, $0.113/hr on AWS in US East (N. Virginia), from $0.002/hr on Rackspace Spot.

Pricing by region
1 hr
RegionAWS on-demandAWS Spot1-yr Reserved3-yr ReservedRackspace SpotYou save
US East, N. Virginia$0.113$0.035$0.071$0.041$0.002
$0.111 savings
US Central, Chicagono AWS region$0.011
US Central, Dallasno AWS region$0.011
Hong Kong$0.150$0.095$0.059$0.061
$0.089 savings
Sydney, Australia$0.148$0.049$0.093$0.057$0.061
$0.087 savings
London, UK$0.134$0.038$0.085$0.056$0.016
$0.118 savings
US West, San Jose$0.142$0.049$0.089$0.057$0.011
$0.131 savings
US Central, Dallas 2no AWS region$0.011
US East, N. Virginia 2$0.113$0.035$0.071$0.041$0.011
$0.102 savings
When to use it
Good for
  • ●Batch processing and CI/CD runners
  • ●Video encoding and transcoding
  • ●High-traffic web and API serving
  • ●Workloads that fit inside 4 GiB of RAM
  • ●Small, steady services that do not need more than 2 vCPU
  • ●Network-heavy services — AWS rates this size at Up to 25 Gigabit
Avoid if
  • ●Starting a new deployment. c7i.large is the newer generation at this size.
  • ●The working set needs more than 4 GiB of RAM
  • ●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
  • ●GPU or FPGA acceleration is needed
c6in.large runs $83/mo on AWS on-demand. The equivalent on Rackspace Spot: $1/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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