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c8a EC2 instance family

AMD EPYC 9R45 at 4.5 GHz, x86_64, 1 to 192 vCPUs, 2 to 384 GiB

Prices Description Specs Performance ranking Available Regions Prices by region
Open c8a in the finder →
c8a prices per hour on Windows, each type in its cheapest region
Type vCPU Memory Typical spot On-demand Cheapest region Per vCPU-hour
c8a.medium1 vCPU, 2 GiB 1 2 GiB $0.0514 $0.0999 us-east-1 of 7 $0.0514
c8a.large2 vCPU, 4 GiB 2 4 GiB $0.1028 $0.1998 us-east-1 of 7 $0.0514
c8a.xlarge4 vCPU, 8 GiB 4 8 GiB $0.2056 $0.3995 us-east-1 of 7 $0.0514
c8a.2xlarge8 vCPU, 16 GiB 8 16 GiB $0.4111 $0.7991 us-east-1 of 7 $0.0514
c8a.4xlarge16 vCPU, 32 GiB 16 32 GiB $0.8222 $1.598 us-east-1 of 7 $0.0514
c8a.8xlarge32 vCPU, 64 GiB 32 64 GiB $1.644 $3.196 us-east-1 of 7 $0.0514
c8a.12xlarge48 vCPU, 96 GiB 48 96 GiB $2.467 $4.794 us-east-1 of 7 $0.0514
c8a.16xlarge64 vCPU, 128 GiB 64 128 GiB $3.289 $6.393 us-east-1 of 7 $0.0514
c8a.24xlarge96 vCPU, 192 GiB 96 192 GiB $4.933 $9.589 us-east-1 of 7 $0.0514
c8a.48xlarge192 vCPU, 384 GiB 192 384 GiB $9.867 $19.18 us-east-1 of 7 $0.0514
c8a.metal-24xl96 vCPU, 192 GiB 96 192 GiB $4.933 $9.589 us-east-1 of 7 $0.0514
c8a.metal-48xl192 vCPU, 384 GiB 192 384 GiB $9.867 $19.18 us-east-1 of 7 $0.0514

Per hour on Windows, in each type's cheapest region. Typical spot: per pricing run of the last 7 days, the cheapest zone's spot price, averaged, as the finder shows it with that region selected. On-demand: the same region's price. Per vCPU-hour: the spot price, or without spot the on-demand price, per vCPU. Every region is under Prices by region.

The C8a instance family, generally available since December 2, 2025, features 5th Generation AMD EPYC 9R45 processors with a maximum frequency of 4.5 GHz. These compute-optimized instances offer configurations with up to 192 vCPUs, up to 384 GiB of memory, and rely solely on Amazon EBS with no local instance storage. They deliver up to 75 Gbps of network bandwidth and up to 60 Gbps of EBS bandwidth, making them well suited for compute-intensive tasks such as batch processing, distributed analytics, and video encoding.

Written by Gemini from web sources and not checked: the specs and prices on this page come from AWS. Source

Instance Types
c8a.medium c8a.large c8a.xlarge c8a.2xlarge c8a.4xlarge c8a.8xlarge c8a.12xlarge c8a.16xlarge c8a.24xlarge c8a.48xlarge c8a.metal-24xl c8a.metal-48xl
vCPUs
1 to 192
Memory
2 to 384 GiB
Architecture
x86_64
Processor
AMD EPYC 9R45
Sustained clock
4.5 GHz
Single-thread PassMark
3802 measured on c8a, 2026-10-08: the median of its types in runs-on.com benchmarks
Specs of each type
Type vCPU Memory Local storage Network EBS
c8a.medium 1 2 GiB EBS only up to 12.5 (0.52 baseline) up to 10 (0.325 baseline)
c8a.large 2 4 GiB EBS only up to 12.5 (0.937 baseline) up to 10 (0.65 baseline)
c8a.xlarge 4 8 GiB EBS only up to 12.5 (1.875 baseline) up to 10 (1.25 baseline)
c8a.2xlarge 8 16 GiB EBS only up to 15 (3.75 baseline) up to 10 (2.5 baseline)
c8a.4xlarge 16 32 GiB EBS only up to 15 (7.5 baseline) up to 10 (5 baseline)
c8a.8xlarge 32 64 GiB EBS only 15 10
c8a.12xlarge 48 96 GiB EBS only 22.5 15
c8a.16xlarge 64 128 GiB EBS only 30 20
c8a.24xlarge 96 192 GiB EBS only 40 30
c8a.48xlarge 192 384 GiB EBS only 75 60
c8a.metal-24xl 96 192 GiB EBS only 40 30
c8a.metal-48xl 192 384 GiB EBS only 75 60

Network and EBS: peak bandwidth in Gbit/s, with the bandwidth the type sustains when it is lower. Local storage: the instance store, in decimal GB as AWS sizes it.

Ranked by PassMark single-thread score
All x86_64 arm64
#1
m8azn, x8aedz
4257
#3
m8a, c8a, hpc8a, r8a
3803 3801–3803
#7
m8i, m8ib, m8id, m8in, m8idb, m8idn, m8ine, m8i-flex, c8i, c8i-flex, c8ib, c8id, c8in, c8ine, r8i, r8i-flex, r8ib, r8id, r8idb, r8idn, r8in, t8i, x8i
3271 3243–3271
#30
i7i, r7iz
3115 3105–3115
#32
m7a, c7a, c7i, hpc7a, r7a
2955 2875–2955
#37
m7i, r7i
2816 2763–2816
#39
c7i-flex
2700
#40
m6a, m5zn, m7i-flex, c6a, hpc6a, i7ie, r6a, x2iezn
2596 2549–2596
#48
m6i, m6id, m6in, m6idn, c6i, c6id, c6in, hpc6id, i4i, r6i, r6id, r6idn, r6in, x2idn, x2iedn, z1d
2303 2269–2303
#64
c5a, c5ad, c5d
2034 1995–2034
#67
m5d, c5, c5n
1901 1853–1901
#70
m5dn, c4, r5dn, r5n, t2, t3
1777 1746–1777
#76
m5, m5n, i3en, r5, r5b, r5d
1703 1686–1703
#82
m4, c3, i3
1625 1582–1625
#85
r3, r4
1539 1525–1539
#87
m5a, m5ad, r5a, r5ad, t3a
1414 1388–1414

Not benchmarked yet 44

These families have no PassMark single-thread score yet, so they are not ranked.

c1, d2, d3, d3en, dl2q, f2, g4dn, g5, g6, g6e, g6f, g7, g7e, gr6, gr6f, h1, i2, inf1, inf2, m1, m2, m3, mac1, p3dn, p4d, p4de, p5, p5en, p6-b200, p6-b300, t1, trn1, trn1n, u-3tb1, u-6tb1, u7i-12tb, u7i-6tb, u7i-8tb, u7in-16tb, u7in-24tb, u7in-32tb, vt1, x1, x1e

7 regions with a price in the last 7 days. Select up to 4 to compare them in the price history charts under Prices by region.

Atom feed for new regions

Each type's regions on Windows, cheapest first, with the same figures as the Prices table, and its price history: the daily mean of every zone and pricing run, over the last 15 UTC days. Each price column is tinted from its cheapest region (green) to its most expensive (red).

c8a.medium1 vCPU, 2 GiB, 7 regions
c8a.medium prices per hour on Windows, by region, cheapest first
Region Typical spot On-demand Spot saving
us-east-1 N. Virginia $0.0514 $0.0999 49%
us-east-2 Ohio $0.0514 $0.0999 49%
eu-south-2 Spain $0.0518 $0.1038 50%
us-west-2 Oregon $0.0536 $0.0999 46%
ap-northeast-1 Tokyo $0.0580 $0.1138 49%
eu-west-1 Ireland $0.0598 $0.1038 42%
eu-central-1 Frankfurt $0.0613 $0.1075 43%
Solid: spot, the daily mean of all zones (the typical spot above takes the cheapest zone). Dashed: on-demand. UTC days.
c8a.large2 vCPU, 4 GiB, 7 regions
c8a.large prices per hour on Windows, by region, cheapest first
Region Typical spot On-demand Spot saving
us-east-1 N. Virginia $0.1028 $0.1998 49%
us-east-2 Ohio $0.1028 $0.1998 49%
eu-south-2 Spain $0.1036 $0.2076 50%
us-west-2 Oregon $0.1073 $0.1998 46%
ap-northeast-1 Tokyo $0.1160 $0.2277 49%
eu-central-1 Frankfurt $0.1194 $0.2150 44%
eu-west-1 Ireland $0.1227 $0.2076 41%
Solid: spot, the daily mean of all zones (the typical spot above takes the cheapest zone). Dashed: on-demand. UTC days.
c8a.xlarge4 vCPU, 8 GiB, 7 regions
c8a.xlarge prices per hour on Windows, by region, cheapest first
Region Typical spot On-demand Spot saving
us-east-1 N. Virginia $0.2056 $0.3995 49%
us-east-2 Ohio $0.2056 $0.3995 49%
eu-south-2 Spain $0.2071 $0.4152 50%
us-west-2 Oregon $0.2144 $0.3995 46%
ap-northeast-1 Tokyo $0.2320 $0.4553 49%
eu-west-1 Ireland $0.2398 $0.4153 42%
eu-central-1 Frankfurt $0.2433 $0.4300 43%
Solid: spot, the daily mean of all zones (the typical spot above takes the cheapest zone). Dashed: on-demand. UTC days.
c8a.2xlarge8 vCPU, 16 GiB, 7 regions
c8a.2xlarge prices per hour on Windows, by region, cheapest first
Region Typical spot On-demand Spot saving
us-east-1 N. Virginia $0.4111 $0.7991 49%
us-east-2 Ohio $0.4111 $0.7991 49%
eu-south-2 Spain $0.4142 $0.8304 50%
us-west-2 Oregon $0.4295 $0.7991 46%
eu-central-1 Frankfurt $0.4572 $0.8600 47%
ap-northeast-1 Tokyo $0.4645 $0.9106 49%
eu-west-1 Ireland $0.4784 $0.8305 42%
Solid: spot, the daily mean of all zones (the typical spot above takes the cheapest zone). Dashed: on-demand. UTC days.
c8a.4xlarge16 vCPU, 32 GiB, 7 regions
c8a.4xlarge prices per hour on Windows, by region, cheapest first
Region Typical spot On-demand Spot saving
us-east-1 N. Virginia $0.8222 $1.598 49%
us-east-2 Ohio $0.8222 $1.598 49%
eu-south-2 Spain $0.8285 $1.661 50%
eu-west-1 Ireland $0.8567 $1.661 48%
us-west-2 Oregon $0.8577 $1.598 46%
eu-central-1 Frankfurt $0.9115 $1.720 47%
ap-northeast-1 Tokyo $0.9280 $1.821 49%
Solid: spot, the daily mean of all zones (the typical spot above takes the cheapest zone). Dashed: on-demand. UTC days.
c8a.8xlarge32 vCPU, 64 GiB, 7 regions
c8a.8xlarge prices per hour on Windows, by region, cheapest first
Region Typical spot On-demand Spot saving
us-east-1 N. Virginia $1.644 $3.196 49%
us-east-2 Ohio $1.644 $3.196 49%
eu-south-2 Spain $1.657 $3.322 50%
us-west-2 Oregon $1.715 $3.196 46%
eu-central-1 Frankfurt $1.808 $3.440 47%
ap-northeast-1 Tokyo $1.845 $3.643 49%
eu-west-1 Ireland $1.914 $3.322 42%
Solid: spot, the daily mean of all zones (the typical spot above takes the cheapest zone). Dashed: on-demand. UTC days.
c8a.12xlarge48 vCPU, 96 GiB, 7 regions
c8a.12xlarge prices per hour on Windows, by region, cheapest first
Region Typical spot On-demand Spot saving
us-east-1 N. Virginia $2.467 $4.794 49%
us-east-2 Ohio $2.467 $4.794 49%
eu-south-2 Spain $2.486 $4.983 50%
eu-west-1 Ireland $2.486 $4.983 50%
us-west-2 Oregon $2.516 $4.794 48%
ap-northeast-1 Tokyo $2.578 $5.464 53%
eu-central-1 Frankfurt $2.679 $5.160 48%
Solid: spot, the daily mean of all zones (the typical spot above takes the cheapest zone). Dashed: on-demand. UTC days.
c8a.16xlarge64 vCPU, 128 GiB, 7 regions
c8a.16xlarge prices per hour on Windows, by region, cheapest first
Region Typical spot On-demand Spot saving
us-east-1 N. Virginia $3.289 $6.393 49%
us-east-2 Ohio $3.289 $6.393 49%
eu-west-1 Ireland $3.314 $6.644 50%
eu-south-2 Spain $3.314 $6.644 50%
us-west-2 Oregon $3.430 $6.393 46%
eu-central-1 Frankfurt $3.559 $6.880 48%
ap-northeast-1 Tokyo $3.709 $7.285 49%
Solid: spot, the daily mean of all zones (the typical spot above takes the cheapest zone). Dashed: on-demand. UTC days.
c8a.24xlarge96 vCPU, 192 GiB, 7 regions
c8a.24xlarge prices per hour on Windows, by region, cheapest first
Region Typical spot On-demand Spot saving
us-east-1 N. Virginia $4.933 $9.589 49%
us-east-2 Ohio $4.933 $9.589 49%
us-west-2 Oregon $4.933 $9.589 49%
eu-south-2 Spain $4.971 $9.965 50%
eu-west-1 Ireland $4.971 $9.966 50%
ap-northeast-1 Tokyo $5.067 $10.93 54%
eu-central-1 Frankfurt $5.604 $10.32 46%
Solid: spot, the daily mean of all zones (the typical spot above takes the cheapest zone). Dashed: on-demand. UTC days.
c8a.48xlarge192 vCPU, 384 GiB, 7 regions
c8a.48xlarge prices per hour on Windows, by region, cheapest first
Region Typical spot On-demand Spot saving
us-east-1 N. Virginia $9.867 $19.18 49%
us-east-2 Ohio $9.867 $19.18 49%
us-west-2 Oregon $9.867 $19.18 49%
eu-south-2 Spain $9.942 $19.93 50%
eu-west-1 Ireland $9.942 $19.93 50%
ap-northeast-1 Tokyo $10.13 $21.86 54%
eu-central-1 Frankfurt $11.64 $20.64 44%
Solid: spot, the daily mean of all zones (the typical spot above takes the cheapest zone). Dashed: on-demand. UTC days.
c8a.metal-24xl96 vCPU, 192 GiB, 7 regions
c8a.metal-24xl prices per hour on Windows, by region, cheapest first
Region Typical spot On-demand Spot saving
us-east-1 N. Virginia $4.933 $9.589 49%
us-east-2 Ohio $4.933 $9.589 49%
us-west-2 Oregon $4.933 $9.589 49%
eu-south-2 Spain $4.971 $9.965 50%
ap-northeast-1 Tokyo $5.067 $10.93 54%
eu-central-1 Frankfurt $5.513 $10.32 47%
eu-west-1 Ireland $5.625 $9.966 44%
Solid: spot, the daily mean of all zones (the typical spot above takes the cheapest zone). Dashed: on-demand. UTC days.
c8a.metal-48xl192 vCPU, 384 GiB, 7 regions
c8a.metal-48xl prices per hour on Windows, by region, cheapest first
Region Typical spot On-demand Spot saving
us-east-1 N. Virginia $9.867 $19.18 49%
us-east-2 Ohio $9.867 $19.18 49%
us-west-2 Oregon $9.867 $19.18 49%
eu-south-2 Spain $9.942 $19.93 50%
ap-northeast-1 Tokyo $10.13 $21.86 54%
eu-west-1 Ireland $11.03 $19.93 45%
eu-central-1 Frankfurt $12.15 $20.64 41%
Solid: spot, the daily mean of all zones (the typical spot above takes the cheapest zone). Dashed: on-demand. UTC days.
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