ec2 instances
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r5b EC2 instance family

Intel Xeon Platinum 8259CL at 3.1 GHz, x86_64, 2 to 96 vCPUs, 16 to 768 GiB

Prices Description Specs Performance ranking Available Regions Prices by region
Open r5b in the finder →
r5b prices per hour on Linux/UNIX, each type in its cheapest region
Type vCPU Memory Typical spot On-demand Cheapest region Per vCPU-hour
r5b.large2 vCPU, 16 GiB 2 16 GiB $0.0202 $0.1579 eu-north-1 of 14 $0.0101
r5b.xlarge4 vCPU, 32 GiB 4 32 GiB $0.0508 $0.3159 eu-north-1 of 14 $0.0127
r5b.2xlarge8 vCPU, 64 GiB 8 64 GiB $0.1225 $0.6318 eu-north-1 of 14 $0.0153
r5b.4xlarge16 vCPU, 128 GiB 16 128 GiB $0.1595 $1.264 eu-north-1 of 14 $0.00997
r5b.8xlarge32 vCPU, 256 GiB 32 256 GiB $0.4159 $2.527 eu-north-1 of 14 $0.0130
r5b.12xlarge48 vCPU, 384 GiB 48 384 GiB $0.3791 $3.791 eu-north-1 of 14 $0.00790
r5b.16xlarge64 vCPU, 512 GiB 64 512 GiB $0.5216 $5.216 ca-central-1 of 14 $0.00815
r5b.24xlarge96 vCPU, 768 GiB 96 768 GiB $0.9313 $7.824 ca-central-1 of 14 $0.00970
r5b.metal96 vCPU, 768 GiB 96 768 GiB $0.7824 $7.824 ca-central-1 of 14 $0.00815

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 R5B memory-optimized instance family, generally available since December 1, 2020, features the Intel Xeon Platinum 8259CL processor. These instances do not offer local instance storage (EBS-only) but are specifically engineered for superior network-attached storage performance. R5B is distinguished by providing up to 60 Gbps of dedicated EBS bandwidth and 260K IOPS, a 3x increase over R5 instances. Powered by the AWS Nitro System, it is ideal for large relational databases and memory-intensive workloads requiring high EBS throughput.

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

Instance Types
r5b.large r5b.xlarge r5b.2xlarge r5b.4xlarge r5b.8xlarge r5b.12xlarge r5b.16xlarge r5b.24xlarge r5b.metal
vCPUs
2 to 96
Memory
16 to 768 GiB
Architecture
x86_64
Processor
Intel Xeon Platinum 8259CL
Sustained clock
3.1 GHz
Single-thread PassMark
1697 measured on r5b, 2025-11-20
Specs of each type
Type vCPU Memory Local storage Network EBS
r5b.large 2 16 GiB EBS only up to 10 (0.75 baseline) up to 10 (1.25 baseline)
r5b.xlarge 4 32 GiB EBS only up to 10 (1.25 baseline) up to 10 (2.5 baseline)
r5b.2xlarge 8 64 GiB EBS only up to 10 (2.5 baseline) up to 10 (5 baseline)
r5b.4xlarge 16 128 GiB EBS only up to 10 (5 baseline) 10
r5b.8xlarge 32 256 GiB EBS only 10 20
r5b.12xlarge 48 384 GiB EBS only 12 30
r5b.16xlarge 64 512 GiB EBS only 20 40
r5b.24xlarge 96 768 GiB EBS only 25 60
r5b.metal 96 768 GiB EBS only 25 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

14 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).

r5b.large2 vCPU, 16 GiB, 14 regions
r5b.large prices per hour on Linux/UNIX, by region, cheapest first
Region Typical spot On-demand Spot saving
eu-north-1 Stockholm $0.0202 $0.1579 87%
ap-northeast-2 Seoul $0.0261 $0.1780 85%
us-east-2 Ohio $0.0261 $0.1490 82%
eu-south-1 Milan $0.0328 $0.1750 81%
sa-east-1 São Paulo $0.0357 $0.2370 85%
us-east-1 N. Virginia $0.0437 $0.1490 71%
us-west-2 Oregon $0.0468 $0.1490 69%
ca-central-1 Canada Central $0.0514 $0.1630 68%
ap-northeast-1 Tokyo $0.0518 $0.1810 71%
eu-west-2 London $0.0522 $0.1750 70%
ap-southeast-1 Singapore $0.0585 $0.1780 67%
ap-southeast-2 Sydney $0.0590 $0.1810 67%
eu-central-1 Frankfurt $0.0623 $0.1780 65%
eu-west-1 Ireland $0.0627 $0.1670 62%
Solid: spot, the daily mean of all zones (the typical spot above takes the cheapest zone). Dashed: on-demand. UTC days.
r5b.xlarge4 vCPU, 32 GiB, 14 regions
r5b.xlarge prices per hour on Linux/UNIX, by region, cheapest first
Region Typical spot On-demand Spot saving
eu-north-1 Stockholm $0.0508 $0.3159 84%
ap-northeast-2 Seoul $0.0643 $0.3560 82%
eu-south-1 Milan $0.0662 $0.3500 81%
sa-east-1 São Paulo $0.0726 $0.4740 85%
us-east-2 Ohio $0.0733 $0.2980 75%
us-west-2 Oregon $0.1041 $0.2980 65%
eu-west-2 London $0.1136 $0.3500 68%
us-east-1 N. Virginia $0.1138 $0.2980 62%
ca-central-1 Canada Central $0.1184 $0.3260 64%
ap-northeast-1 Tokyo $0.1185 $0.3620 67%
ap-southeast-1 Singapore $0.1212 $0.3560 66%
ap-southeast-2 Sydney $0.1411 $0.3620 61%
eu-west-1 Ireland $0.1446 $0.3340 57%
eu-central-1 Frankfurt $0.1449 $0.3560 59%
Solid: spot, the daily mean of all zones (the typical spot above takes the cheapest zone). Dashed: on-demand. UTC days.
r5b.2xlarge8 vCPU, 64 GiB, 14 regions
r5b.2xlarge prices per hour on Linux/UNIX, by region, cheapest first
Region Typical spot On-demand Spot saving
eu-north-1 Stockholm $0.1225 $0.6318 81%
ap-northeast-2 Seoul $0.1357 $0.7120 81%
sa-east-1 São Paulo $0.1505 $0.9480 84%
eu-south-1 Milan $0.1545 $0.7000 78%
us-east-2 Ohio $0.1642 $0.5960 72%
ca-central-1 Canada Central $0.1867 $0.6520 71%
ap-northeast-1 Tokyo $0.2411 $0.7240 67%
us-west-2 Oregon $0.2445 $0.5960 59%
ap-southeast-1 Singapore $0.2605 $0.7120 63%
eu-west-2 London $0.2664 $0.7000 62%
us-east-1 N. Virginia $0.2668 $0.5960 55%
eu-west-1 Ireland $0.2886 $0.6680 57%
eu-central-1 Frankfurt $0.2896 $0.7120 59%
ap-southeast-2 Sydney $0.2923 $0.7240 60%
Solid: spot, the daily mean of all zones (the typical spot above takes the cheapest zone). Dashed: on-demand. UTC days.
r5b.4xlarge16 vCPU, 128 GiB, 14 regions
r5b.4xlarge prices per hour on Linux/UNIX, by region, cheapest first
Region Typical spot On-demand Spot saving
eu-north-1 Stockholm $0.1595 $1.264 87%
eu-south-1 Milan $0.2358 $1.400 83%
sa-east-1 São Paulo $0.2370 $1.896 87%
ap-northeast-2 Seoul $0.3202 $1.424 78%
us-east-2 Ohio $0.3633 $1.192 70%
us-west-2 Oregon $0.4415 $1.192 63%
eu-west-2 London $0.4421 $1.400 68%
ap-northeast-1 Tokyo $0.4477 $1.448 69%
ca-central-1 Canada Central $0.4558 $1.304 65%
eu-central-1 Frankfurt $0.5002 $1.424 65%
ap-southeast-1 Singapore $0.5140 $1.424 64%
ap-southeast-2 Sydney $0.5313 $1.448 63%
us-east-1 N. Virginia $0.5325 $1.192 55%
eu-west-1 Ireland $0.5366 $1.336 60%
Solid: spot, the daily mean of all zones (the typical spot above takes the cheapest zone). Dashed: on-demand. UTC days.
r5b.8xlarge32 vCPU, 256 GiB, 14 regions
r5b.8xlarge prices per hour on Linux/UNIX, by region, cheapest first
Region Typical spot On-demand Spot saving
eu-north-1 Stockholm $0.4159 $2.527 84%
eu-south-1 Milan $0.4573 $2.800 84%
sa-east-1 São Paulo $0.4694 $3.792 88%
ca-central-1 Canada Central $0.6181 $2.608 76%
us-east-2 Ohio $0.6312 $2.384 74%
ap-northeast-2 Seoul $0.7023 $2.848 75%
ap-northeast-1 Tokyo $0.7876 $2.896 73%
ap-southeast-2 Sydney $0.9058 $2.896 69%
eu-west-2 London $0.9135 $2.800 67%
us-east-1 N. Virginia $0.9460 $2.384 60%
ap-southeast-1 Singapore $0.9824 $2.848 66%
eu-central-1 Frankfurt $0.9931 $2.848 65%
us-west-2 Oregon $1.055 $2.384 56%
eu-west-1 Ireland $1.055 $2.672 61%
Solid: spot, the daily mean of all zones (the typical spot above takes the cheapest zone). Dashed: on-demand. UTC days.
r5b.12xlarge48 vCPU, 384 GiB, 14 regions
r5b.12xlarge prices per hour on Linux/UNIX, by region, cheapest first
Region Typical spot On-demand Spot saving
eu-north-1 Stockholm $0.3791 $3.791 90%
sa-east-1 São Paulo $0.6052 $5.688 89%
ap-northeast-2 Seoul $0.7472 $4.272 83%
eu-south-1 Milan $0.7583 $4.200 82%
ca-central-1 Canada Central $0.7924 $3.912 80%
ap-northeast-1 Tokyo $0.8399 $4.344 81%
us-east-2 Ohio $1.030 $3.576 71%
ap-southeast-2 Sydney $1.140 $4.344 74%
us-east-1 N. Virginia $1.259 $3.576 65%
eu-west-2 London $1.262 $4.200 70%
eu-central-1 Frankfurt $1.503 $4.272 65%
ap-southeast-1 Singapore $1.545 $4.272 64%
us-west-2 Oregon $1.569 $3.576 56%
eu-west-1 Ireland $1.600 $4.008 60%
Solid: spot, the daily mean of all zones (the typical spot above takes the cheapest zone). Dashed: on-demand. UTC days.
r5b.16xlarge64 vCPU, 512 GiB, 14 regions
r5b.16xlarge prices per hour on Linux/UNIX, by region, cheapest first
Region Typical spot On-demand Spot saving
ca-central-1 Canada Central $0.5216 $5.216 90%
eu-north-1 Stockholm $0.5638 $5.054 89%
eu-south-1 Milan $0.9141 $5.600 84%
ap-northeast-2 Seoul $1.164 $5.696 80%
ap-northeast-1 Tokyo $1.181 $5.792 80%
us-east-2 Ohio $1.568 $4.768 67%
eu-central-1 Frankfurt $1.796 $5.696 68%
us-west-2 Oregon $1.827 $4.768 62%
sa-east-1 São Paulo $1.871 $7.584 75%
us-east-1 N. Virginia $1.949 $4.768 59%
ap-southeast-1 Singapore $2.027 $5.696 64%
ap-southeast-2 Sydney $2.033 $5.792 65%
eu-west-2 London $2.180 $5.600 61%
eu-west-1 Ireland $2.813 $5.344 47%
Solid: spot, the daily mean of all zones (the typical spot above takes the cheapest zone). Dashed: on-demand. UTC days.
r5b.24xlarge96 vCPU, 768 GiB, 14 regions
r5b.24xlarge prices per hour on Linux/UNIX, by region, cheapest first
Region Typical spot On-demand Spot saving
ca-central-1 Canada Central $0.9313 $7.824 88%
eu-north-1 Stockholm $1.045 $7.581 86%
ap-northeast-1 Tokyo $1.676 $8.688 81%
eu-south-1 Milan $1.951 $8.400 77%
eu-central-1 Frankfurt $2.257 $8.544 74%
ap-southeast-2 Sydney $2.460 $8.688 72%
ap-northeast-2 Seoul $2.466 $8.544 71%
us-east-2 Ohio $2.673 $7.152 63%
us-east-1 N. Virginia $2.760 $7.152 61%
eu-west-1 Ireland $2.802 $8.016 65%
eu-west-2 London $2.969 $8.400 65%
ap-southeast-1 Singapore $3.290 $8.544 61%
sa-east-1 São Paulo $3.710 $11.38 67%
us-west-2 Oregon $3.766 $7.152 47%
Solid: spot, the daily mean of all zones (the typical spot above takes the cheapest zone). Dashed: on-demand. UTC days.
r5b.metal96 vCPU, 768 GiB, 14 regions
r5b.metal prices per hour on Linux/UNIX, by region, cheapest first
Region Typical spot On-demand Spot saving
ca-central-1 Canada Central $0.7824 $7.824 90%
eu-north-1 Stockholm $0.8388 $7.581 89%
eu-south-1 Milan $0.8400 $8.400 90%
eu-west-2 London $0.8417 $8.400 90%
ap-northeast-2 Seoul $0.9154 $8.544 89%
eu-central-1 Frankfurt $0.9339 $8.544 89%
sa-east-1 São Paulo $1.138 $11.38 90%
us-east-2 Ohio $1.166 $7.152 84%
ap-southeast-2 Sydney $1.323 $8.688 85%
us-west-2 Oregon $1.335 $7.152 81%
ap-northeast-1 Tokyo $1.541 $8.688 82%
us-east-1 N. Virginia $1.908 $7.152 73%
eu-west-1 Ireland $1.918 $8.016 76%
ap-southeast-1 Singapore $2.808 $8.544 67%
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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