Instances›AWS EC2›c7i›c7i.24xlarge
Compute
vCPUs96
Memory192 GiB
Mem / vCPU2.00 GiB
ProcessorXeon Scalable
Clock speed3.2 GHz
Architecturex86_64
Storage
TypeEBS only
Bandwidth30,000 Mbps
Throughput3750 MB/s
IOPS120,000
Networking
Performance37.5 Gigabit
Max ENIs15
IPv6Yes
GPUNone
Family sizes
c7i.large2 vCPU · 4 GiB
c7i.xlarge4 vCPU · 8 GiB
c7i.2xlarge8 vCPU · 16 GiB
c7i.4xlarge16 vCPU · 32 GiB
c7i.8xlarge32 vCPU · 64 GiB
c7i.12xlarge48 vCPU · 96 GiB
c7i.16xlarge64 vCPU · 128 GiB
c7i.24xlarge96 vCPU · 192 GiB
c7i.metal-24xl96 vCPU · 192 GiB
c7i.48xlarge192 vCPU · 384 GiB
c7i.metal-48xl192 vCPU · 384 GiB
c7i.24xlarge

c7i.24xlarge is AWS's compute-optimized EC2 size at 96 vCPU and 192 GiB. In the name, "c" stands for compute, "7" is the generation, "i" marks Intel processors and "24xlarge" is the size within the c7i family. It runs on Intel Xeon Scalable (Sapphire Rapids) at 3.2 GHz, and AWS introduced it in September 2023. AWS has since shipped c8i and c9g; c8i.24xlarge is the direct replacement at this size, scoring 2,265,487 CoreMark/s against this instance's 1,984,975 — roughly 14% more throughput for the same vCPU count. The closest Spot shape is ch.vs1.2xlarge at 16 vCPU, so this instance maps to 6 of them — 96 vCPU and 192 GiB across the fleet, about 94% below the US East (N. Virginia) on-demand rate. Spot delivers compute as managed Kubernetes, so a node pool of that size is the native shape of the answer rather than a workaround — provided the workload scales horizontally.

Match qualityScale-out match

c7i.24xlarge gives you 96 vCPU and 192 GiB in a single machine. The largest comparable Spot node, ch.vs1.2xlarge, is 16 vCPU and 32 GiB, so the equivalent here is 6 nodes rather than one.

Spot runs as managed Kubernetes, so a 6-node pool is the normal way to run things rather than a workaround. If your workload already sits behind a load balancer, a queue or a scheduler, it spreads across them without changes. If it needs all 96 cores and 192 GiB in one process, it does not.

Pricing by region
1 hr
RegionAWS on-demandAWS Spot1-yr Reserved3-yr ReservedRackspace SpotYou save
US East, N. Virginia$4.284$1.363$2.834$1.886$0.246
$4.038 savings
US Central, Chicagono AWS region$0.066
US Central, Dallasno AWS region$0.666
Hong Kong$5.443$3.601$2.469$0.246
$5.197 savings
Sydney, Australia$5.594$2.261$3.694$2.542$0.246
$5.348 savings
London, UK$5.090$0.540$3.360$2.313$0.786
$4.304 savings
US West, San Jose$5.342$1.412$3.528$2.429$0.012
$5.330 savings
US Central, Dallas 2no AWS region$0.732
US East, N. Virginia 2$4.284$1.363$2.834$1.886$0.972
$3.312 savings
When to use it
Good for
  • ●Ad serving and real-time bidding
  • ●Game servers and matchmaking
  • ●Batch processing and CI/CD runners
  • ●Workloads that fit inside 192 GiB of RAM
  • ●Parallel work that can occupy 96 vCPU
  • ●Network-heavy services — AWS rates this size at 37.5 Gigabit
  • ●Anything that shards cleanly across 6 nodes, which is how it maps onto Rackspace Spot
Avoid if
  • ●Starting a new deployment. c8i.24xlarge is the newer generation at this size.
  • ●The working set needs more than 192 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
  • ●The work is single-threaded. Most of these 96 vCPU would sit idle.
$3,127/mo on AWS on-demand against $180/mo on Rackspace Spot for the 6-node 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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