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c6a.12xlarge pricing and specs in US West (Oregon)

48 vCPU · 96 GiB · 18.75 Gigabit · AMD EPYC 7R13 Processor

$1.8360/hour on-demand · $1,340/month (Linux, Shared)

c6a.12xlarge is a compute-optimized EC2 instance with 48 vCPU and 96 GiB, generation 6 of the c family. On-demand it costs $1.8360 an hour, about $1,340 a month if it runs all month. A one-year commitment with nothing up front works out at $1.2145 an hour and pays for itself above roughly 482 hours a month; below that, on-demand is cheaper. The three-year options go down to $0.7035 an hour, 62% below on-demand. The newer c6g.12xlarge offers the same size for $1.6320 an hour, 11% less and moves to Graviton. Across regions the cheapest place to run c6a.12xlarge is Asia Pacific (Mumbai) (ap-south-1) at $1.1220 an hour, 39% below US West (Oregon).

Pricing by OS (hourly, USD, Shared)

OptionLinuxWindowsRHELSUSEUbuntu Pro
On-Demand$1.8360$4.0440$2.3544$1.9610$1.9200
Spot$0.7179$2.4338———
1y Std RI NU$1.2145$3.4225$1.7329$1.2745—
1y Std RI PU$1.1567$3.3646$1.6751$1.2167—
1y Std RI AU$1.1336$3.3416$1.6519$1.1935—
3y Std RI NU$0.8083$3.0163$1.3267$0.8623—
3y Std RI PU$0.7485$2.9565$1.2669$0.8024—
3y Std RI AU$0.7035$2.9115$1.2219$0.7575—
1y Conv RI NU$1.3268$3.5348$1.8452$1.3868—
3y Conv RI NU$0.8865$3.0945$1.4049$0.9405—
1y Compute SP NU$1.3268$3.5348$1.8452$1.3867$1.3940
3y Compute SP NU$0.8865$3.0945$1.4049$0.9405$0.9412
1y EC2 SP NU$1.2145$3.4225$1.7329$1.2744$1.2817
3y EC2 SP NU$0.8083$3.0163$1.3267$0.8623$0.8630

Spot by AZ (7-day p50, Linux): us-west-2b $0.7883 · us-west-2d $0.6542 · us-west-2c $0.7019 · us-west-2a $0.7340

Newer generations of the same size

Same family letter and size in a newer generation, ranked by price. “vCPU per $” uses vCPU as the performance proxy — newer chips usually add more, so it is a floor.

Graviton-eligible → c6g.12xlarge (-11%)
Type$/hPrice ΔvCPU per $ ΔSaves / mo
c6g.12xlarge Graviton arch change$1.6320-11%+12%$149
c7g.12xlarge Graviton arch change$1.7400-5%+6%$70
c6gd.12xlarge Graviton arch change$1.8432+0.4%-0.4%$-5
c8g.12xlarge Graviton arch change$1.9142+4%-4%$-57
c7i-flex.12xlarge$2.0349+11%-10%$-145
c6i.12xlarge$2.0400+11%-10%$-149
c6gn.12xlarge Graviton arch change$2.0736+13%-11%$-173
c9g.12xlarge Graviton arch change$2.0866+14%-12%$-183

Cheapest regions for c6a.12xlarge

RegionOn-Demand $/hvs us-west-2Saves / mo
Asia Pacific (Mumbai) ap-south-1$1.1220-39%$521
Asia Pacific (Hyderabad) ap-south-2$1.1220-39%$521
US East (N. Virginia) us-east-1$1.83600.0%$0
US East (Ohio) us-east-2$1.83600.0%$0
US West (Oregon) us-west-2$1.8360current—
EU (Ireland) eu-west-1$1.9699+7%$-98

Caveat: instance price is only part of the bill. Cross-region and internet data transfer, latency to your users, data-residency rules and service availability can outweigh a few percent on compute.

Price history (us-west-2)

Daily snapshots since the catalog started tracking this type; a row is added whenever a headline price changes.

DateOD LinuxOD Windows1y RI3y RISpot p50
2026-11-06$1.8360$4.0440$1.2145$0.8083$0.7179
2026-11-05$1.8360$4.0440$1.2145$0.8083$0.7240
2026-11-04$1.8360$4.0440$1.2145$0.8083$0.7270
2026-11-03$1.8360$4.0440$1.2145$0.8083$0.7287
2026-11-02$1.8360$4.0440$1.2145$0.8083$0.7297
2026-10-30$1.8360$4.0440$1.2145$0.8083$0.7296
2026-10-29$1.8360$4.0440$1.2145$0.8083$0.7264
2026-10-28$1.8360$4.0440$1.2145$0.8083$0.7073
2026-10-27$1.8360$4.0440$1.2145$0.8083$0.7036
2026-10-26$1.8360$4.0440$1.2145$0.8083$0.7027
2026-10-25$1.8360$4.0440$1.2145$0.8083$0.7024
2026-10-24$1.8360$4.0440$1.2145$0.8083$0.7026
2026-10-23$1.8360$4.0440$1.2145$0.8083$0.7027
2026-10-22$1.8360$4.0440$1.2145$0.8083$0.7032
2026-10-21$1.8360$4.0440$1.2145$0.8083$0.7056
2026-10-20$1.8360$4.0440$1.2145$0.8083$0.7047
2026-10-19$1.8360$4.0440$1.2145$0.8083$0.7046
2026-10-18$1.8360$4.0440$1.2145$0.8083$0.7070
2026-10-17$1.8360$4.0440$1.2145$0.8083$0.7071
2026-10-16$1.8360$4.0440$1.2145$0.8083$0.7118
2026-10-15$1.8360$4.0440$1.2145$0.8083$0.7310
2026-10-14$1.8360$4.0440$1.2145$0.8083$0.7423
2026-10-12$1.8360$4.0440$1.2145$0.8083$0.7423
2026-10-11$1.8360$4.0440$1.2145$0.8083$0.7418
2026-10-10$1.8360$4.0440$1.2145$0.8083$0.7413
2026-10-09$1.8360$4.0440$1.2145$0.8083$0.7367
2026-10-08$1.8360$4.0440$1.2145$0.8083$0.7193
2026-10-07$1.8360$4.0440$1.2145$0.8083$0.7057
2026-10-06$1.8360$4.0440$1.2145$0.8083$0.7055
2026-10-04$1.8360$4.0440$1.2145$0.8083$0.7056

All attributes

vCPU
48
Cores / threads per core
24 / 2
Memory
96 GiB
Memory per vCPU
2.00 GiB
Processor
AMD EPYC 7R13 Processor
Architecture
x86_64
Sustained clock
3.6 GHz
Hypervisor
nitro
Generation
Current
Burstable
No
Bare metal
No
Free tier eligible
No
Network performance
18.75 Gigabit
Network baseline / burst
18.75 / 18.75 Gbps
Max ENIs × IPv4 per ENI
8 × 30
IPv6 / ENA / EFA
IPv6 / ENA / —
EBS optimized
Yes
EBS bandwidth (baseline / max)
15000 / 15000 Mbps
EBS IOPS (baseline / max)
60,000 / 60000
EBS NVMe
required
Instance storage
EBS only
GPU
—
Placement groups
cluster, partition, spread
Hibernation / Nitro Enclaves
No / Yes
Dedicated hosts
Supported
Boot modes
legacy-bios, uefi
Spot supported
Yes

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Public AWS list prices (USD), refreshed nightly (catalog 2026-11-06). RI and Savings Plan rates are effective hourly (upfront amortised over the term) and are charged for every hour of the term. Excludes taxes, data transfer and storage. How these numbers are sourced and checked. Not affiliated with Amazon Web Services.

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