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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 Linux/UNIX, 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 $0.00829 $0.0539 us-east-2 of 7 $0.00829
c8a.large2 vCPU, 4 GiB 2 4 GiB $0.0219 $0.1156 eu-south-2 of 7 $0.0110
c8a.xlarge4 vCPU, 8 GiB 4 8 GiB $0.0332 $0.2312 eu-south-2 of 7 $0.00831
c8a.2xlarge8 vCPU, 16 GiB 8 16 GiB $0.0462 $0.4624 eu-south-2 of 7 $0.00578
c8a.4xlarge16 vCPU, 32 GiB 16 32 GiB $0.1002 $0.9249 eu-south-2 of 7 $0.00626
c8a.8xlarge32 vCPU, 64 GiB 32 64 GiB $0.1850 $1.850 eu-south-2 of 7 $0.00578
c8a.12xlarge48 vCPU, 96 GiB 48 96 GiB $0.5101 $2.586 us-east-2 of 7 $0.0106
c8a.16xlarge64 vCPU, 128 GiB 64 128 GiB $0.6880 $3.700 eu-south-2 of 7 $0.0108
c8a.24xlarge96 vCPU, 192 GiB 96 192 GiB $0.6032 $5.549 eu-south-2 of 7 $0.00628
c8a.48xlarge192 vCPU, 384 GiB 192 384 GiB $1.167 $11.10 eu-south-2 of 7 $0.00608
c8a.metal-24xl96 vCPU, 192 GiB 96 192 GiB $0.5549 $5.549 eu-south-2 of 7 $0.00578
c8a.metal-48xl192 vCPU, 384 GiB 192 384 GiB $1.035 $10.35 us-east-2 of 7 $0.00539

Per hour on Linux/UNIX, 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 Linux/UNIX, 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 Linux/UNIX, by region, cheapest first
Region Typical spot On-demand Spot saving
us-east-2 Ohio $0.00829 $0.0539 85%
eu-south-2 Spain $0.0108 $0.0578 81%
us-east-1 N. Virginia $0.0128 $0.0539 76%
eu-central-1 Frankfurt $0.0132 $0.0615 78%
us-west-2 Oregon $0.0138 $0.0539 74%
ap-northeast-1 Tokyo $0.0177 $0.0678 74%
eu-west-1 Ireland $0.0234 $0.0578 60%
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 Linux/UNIX, by region, cheapest first
Region Typical spot On-demand Spot saving
eu-south-2 Spain $0.0219 $0.1156 81%
us-east-2 Ohio $0.0226 $0.1078 79%
us-west-2 Oregon $0.0281 $0.1078 74%
eu-central-1 Frankfurt $0.0322 $0.1230 74%
us-east-1 N. Virginia $0.0343 $0.1078 68%
eu-west-1 Ireland $0.0390 $0.1156 66%
ap-northeast-1 Tokyo $0.0405 $0.1357 70%
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 Linux/UNIX, by region, cheapest first
Region Typical spot On-demand Spot saving
eu-south-2 Spain $0.0332 $0.2312 86%
us-east-2 Ohio $0.0461 $0.2155 79%
us-east-1 N. Virginia $0.0724 $0.2155 66%
us-west-2 Oregon $0.0778 $0.2155 64%
eu-central-1 Frankfurt $0.0810 $0.2460 67%
eu-west-1 Ireland $0.0954 $0.2313 59%
ap-northeast-1 Tokyo $0.0957 $0.2713 65%
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 Linux/UNIX, by region, cheapest first
Region Typical spot On-demand Spot saving
eu-south-2 Spain $0.0462 $0.4624 90%
us-east-2 Ohio $0.0939 $0.4311 78%
eu-central-1 Frankfurt $0.1341 $0.4920 73%
us-west-2 Oregon $0.1372 $0.4311 68%
us-east-1 N. Virginia $0.1725 $0.4311 60%
ap-northeast-1 Tokyo $0.1874 $0.5426 65%
eu-west-1 Ireland $0.2030 $0.4625 56%
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 Linux/UNIX, by region, cheapest first
Region Typical spot On-demand Spot saving
eu-south-2 Spain $0.1002 $0.9249 89%
us-east-2 Ohio $0.1956 $0.8622 77%
us-east-1 N. Virginia $0.2415 $0.8622 72%
eu-central-1 Frankfurt $0.2675 $0.9839 73%
us-west-2 Oregon $0.2907 $0.8622 66%
ap-northeast-1 Tokyo $0.3544 $1.085 67%
eu-west-1 Ireland $0.4429 $0.9250 52%
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 Linux/UNIX, by region, cheapest first
Region Typical spot On-demand Spot saving
eu-south-2 Spain $0.1850 $1.850 90%
us-east-2 Ohio $0.4799 $1.724 72%
us-west-2 Oregon $0.5998 $1.724 65%
eu-central-1 Frankfurt $0.6246 $1.968 68%
us-east-1 N. Virginia $0.6313 $1.724 63%
ap-northeast-1 Tokyo $0.7513 $2.171 65%
eu-west-1 Ireland $0.8240 $1.850 55%
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 Linux/UNIX, by region, cheapest first
Region Typical spot On-demand Spot saving
us-east-2 Ohio $0.5101 $2.586 80%
us-east-1 N. Virginia $0.5803 $2.586 78%
eu-south-2 Spain $0.5827 $2.775 79%
us-west-2 Oregon $0.7908 $2.586 69%
eu-central-1 Frankfurt $0.8524 $2.952 71%
ap-northeast-1 Tokyo $0.9908 $3.256 70%
eu-west-1 Ireland $1.052 $2.775 62%
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 Linux/UNIX, by region, cheapest first
Region Typical spot On-demand Spot saving
eu-south-2 Spain $0.6880 $3.700 81%
us-east-2 Ohio $0.8101 $3.449 77%
eu-central-1 Frankfurt $0.9472 $3.936 76%
us-east-1 N. Virginia $0.9926 $3.449 71%
ap-northeast-1 Tokyo $1.011 $4.341 77%
us-west-2 Oregon $1.072 $3.449 69%
eu-west-1 Ireland $1.651 $3.700 55%
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 Linux/UNIX, by region, cheapest first
Region Typical spot On-demand Spot saving
eu-south-2 Spain $0.6032 $5.549 89%
us-east-2 Ohio $0.9684 $5.173 81%
us-east-1 N. Virginia $1.263 $5.173 76%
us-west-2 Oregon $1.580 $5.173 69%
ap-northeast-1 Tokyo $1.625 $6.512 75%
eu-central-1 Frankfurt $1.855 $5.904 69%
eu-west-1 Ireland $1.913 $5.550 66%
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 Linux/UNIX, by region, cheapest first
Region Typical spot On-demand Spot saving
eu-south-2 Spain $1.167 $11.10 89%
ap-northeast-1 Tokyo $2.215 $13.02 83%
eu-central-1 Frankfurt $2.750 $11.81 77%
us-east-2 Ohio $2.923 $10.35 72%
us-west-2 Oregon $2.974 $10.35 71%
us-east-1 N. Virginia $3.558 $10.35 66%
eu-west-1 Ireland $4.521 $11.10 59%
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 Linux/UNIX, by region, cheapest first
Region Typical spot On-demand Spot saving
eu-south-2 Spain $0.5549 $5.549 90%
ap-northeast-1 Tokyo $0.6512 $6.512 90%
eu-central-1 Frankfurt $1.113 $5.904 81%
us-east-2 Ohio $1.216 $5.173 76%
us-west-2 Oregon $1.235 $5.173 76%
us-east-1 N. Virginia $1.453 $5.173 72%
eu-west-1 Ireland $1.669 $5.550 70%
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 Linux/UNIX, by region, cheapest first
Region Typical spot On-demand Spot saving
us-east-2 Ohio $1.035 $10.35 90%
eu-south-2 Spain $1.110 $11.10 90%
us-east-1 N. Virginia $2.036 $10.35 80%
ap-northeast-1 Tokyo $2.060 $13.02 84%
eu-west-1 Ireland $2.203 $11.10 80%
eu-central-1 Frankfurt $3.207 $11.81 73%
us-west-2 Oregon $3.346 $10.35 68%
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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