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r5b.16xlarge by Amazon Web Services

r5b.16xlarge is a Memory optimized Gen5 16xlarge server offered by Amazon Web Services with 64 vCPUs, 512 GiB of memory and 0 GB of storage. The pricing starts at 0.56 USD per hour.
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64 vCPU
512 GiB Memory
Spare SCore
54544
(All-cores)
1285
(Single-core)

Specifications

Server Details

General
Vendor ID
aws
Server ID
r5b.16xlarge
Name
r5b.16xlarge
API Reference
r5b.16xlarge
Display Name
r5b.16xlarge
Description
Memory optimized Gen5 16xlarge
Family
r5b
Status
active
Observed At
2026-02-05T21:40:56.196870
CPU
vCPUs
64
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
32
CPU Speed
3.1 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
8259CL
CPU L1 Cache
1 MiB
CPU L2 Cache
32 MiB
CPU L3 Cache
72 MiB
CPU Flags
fpu, vme, de, pse, tsc, msr, pae, mce, cx8, apic, sep, mtrr, pge, mca, cmov, pat, pse36, clflush, mmx, fxsr, sse, sse2, ss, ht, syscall, nx, pdpe1gb, rdtscp, lm, constant_tsc, rep_good, nopl, xtopology, nonstop_tsc, cpuid, aperfmperf, tsc_known_freq, pni, pclmulqdq, ssse3, fma, cx16, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, tsc_deadline_timer, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, abm, 3dnowprefetch, pti, fsgsbase, tsc_adjust, bmi1, avx2, smep, bmi2, erms, invpcid, mpx, avx512f, avx512dq, rdseed, adx, smap, clflushopt, clwb, avx512cd, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, ida, arat, pku, ospke, avx512_vnni
Memory
Memory Amount
512 GiB
Memory Generation
DDR4
Memory Speed
2933 Mhz
GPU
GPU Count
0
GPUs
    Storage
    Storage Size
    0 GB
    Storages
      Network
      Network Speed
      20 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Availability

      REGION / IDSPOTONDEMAND
      Oregon (US) / us-west-2
      		2.2419 USD/h 4.768 USD/h
      Ohio (US) / us-east-2
      		2.089767 USD/h 4.768 USD/h
      Northern Virgina (US) / us-east-1
      		2.60965 USD/h 4.768 USD/h
      Stockholm (SE) / eu-north-1
      		1.705 USD/h 5.0541 USD/h
      Quebec (CA) / ca-central-1
      		1.584967 USD/h 5.216 USD/h
      Dublin (IE) / eu-west-1
      		2.4644 USD/h 5.344 USD/h
      Milan (IT) / eu-south-1
      		0.7733 USD/h 5.6 USD/h
      London (GB) / eu-west-2
      		2.113167 USD/h 5.6 USD/h
      Seoul (KR) / ap-northeast-2
      		1.818233 USD/h 5.696 USD/h
      Frankfurt (DE) / eu-central-1
      		1.636733 USD/h 5.696 USD/h
      Singapore (SG) / ap-southeast-1
      		2.1337 USD/h 5.696 USD/h
      Tokyo (JP) / ap-northeast-1
      		1.176167 USD/h 5.792 USD/h
      Sydney (AU) / ap-southeast-2
      		2.0558 USD/h 5.792 USD/h
      Sao Paulo (BR) / sa-east-1
      		5.718533 USD/h 7.584 USD/h

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Alternatives

      Servers of the Same Family

      INSTANCEvCPUsMEMORYGPUs
      r5b.large 216 GiB0
      r5b.xlarge 432 GiB0
      r5b.2xlarge 864 GiB0
      r5b.4xlarge 16128 GiB0
      r5b.8xlarge 32256 GiB0
      r5b.12xlarge 48384 GiB0
      r5b.24xlarge 96768 GiB0

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      r5b.16xlarge FAQs

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