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r5b.2xlarge by Amazon Web Services

r5b.2xlarge is a Memory optimized Gen5 2xlarge server offered by Amazon Web Services with 8 vCPUs, 64 GiB of memory and 0 GB of storage. The pricing starts at 0.1365 USD per hour.
8 vCPU
64 GiB Memory
Spare SCore
6757
(All-cores)
1282
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r5b.2xlarge
Description
Memory optimized Gen5 2xlarge
Family
r5b
Hw Virt
Status
active
Observed At
2026-06-26T03:28:56.175048

Availability

REGION / IDSPOTONDEMAND
Oregon (US) / us-west-2
0.2386 USD/h 0.596 USD/h
Ohio (US) / us-east-2
0.266167 USD/h 0.596 USD/h
Northern Virgina (US) / us-east-1
0.349125 USD/h 0.596 USD/h
Stockholm (SE) / eu-north-1
0.28675 USD/h 0.6318 USD/h
Quebec (CA) / ca-central-1
0.261867 USD/h 0.652 USD/h
Dublin (IE) / eu-west-1
0.339233 USD/h 0.668 USD/h
Milan (IT) / eu-south-1
0.159967 USD/h 0.7 USD/h
London (GB) / eu-west-2
0.351133 USD/h 0.7 USD/h
Seoul (KR) / ap-northeast-2
0.2866 USD/h 0.712 USD/h
Singapore (SG) / ap-southeast-1
0.301033 USD/h 0.712 USD/h
Frankfurt (DE) / eu-central-1
0.402433 USD/h 0.712 USD/h
Tokyo (JP) / ap-northeast-1
0.245 USD/h 0.724 USD/h
Sydney (AU) / ap-southeast-2
0.3455 USD/h 0.724 USD/h
Sao Paulo (BR) / sa-east-1
0.3865 USD/h 0.948 USD/h

Processor

vCPUs
8
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
4
CPU Speed
3.1 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
8259CL
CPU L1D Cache
32 KiB
CPU L1D Cache Total
128 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
128 KiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
4 MiB
CPU L3 Cache
36 MiB
CPU L3 Cache Total
36 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
Ecpus
5.3
Scalability
132.5

System Resources and Accelerators

MEMORY
Memory Amount
64 GiB
Memory Amount Actual
64 GiB
Memory Generation
DDR4
Memory Speed
3200 Mhz
GPU
GPU Count
0
GPU Memory Min
0 MiB
GPU Memory Total
0 MiB
GPUs
    STORAGE
    Storage Size
    0 GB
    Storages
      NETWORK
      Network Speed Baseline
      2.5 Gbps
      Network Speed Max
      10 Gbps
      Network Storage Speed Baseline
      5 Gbps
      Network Storage Speed Max
      10 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      An x86_64 memory-optimized instance featuring 64 GB of RAM and 8 vCPUs for memory-intensive workloads and caching applications.

      Memory OptimizedGeneral Purpose

      Amazon Web Services r5b.2xlarge is a memory-optimized instance featuring 8 vCPUs and 64.0 GB of DDR4 RAM. Powered by an Intel Xeon 8259CL processor running at 3.1 GHz on the Nitro hypervisor, this x86_64 instance provides a high memory-to-vCPU ratio of 8.0 GB per core. It does not include local storage or GPU accelerators, and it operates with a baseline network bandwidth of 2 Gbps. Performance benchmarks show average multi-core CPU and memory bandwidth capabilities, contrasted with weaker single-core processing and database operation scores. The instance is suited for memory-intensive workloads, caching layers, and moderate database tasks where memory capacity is prioritized over raw compute speed.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,116

      Geekbench Multi-Core

      Score: 4,225

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		7687
      Compression
      		100377
      Encryption
      		3124
      Extended Instructions
      		6019
      Floating Point Maths
      		12142
      Integer Maths
      		22631
      Physics
      		871
      Prime Numbers
      		48
      Single Threaded
      		1815
      String Sorting
      		11831

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		2069
      Database Operations
      		2586
      Memory Latency
      		62
      Memory Read Cached
      		21900
      Memory Read Uncached
      		8606
      Memory Write
      		7934

      Stress-ng Raw Scores

      Stress-ng Relative Multicore Performance

      LLM Inference Speed for Prompt Processing

      LLM Inference Speed for Text Generation

      Static Web Server

      Redis

      Alternatives

      Servers of the Same Family

      INSTANCEvCPUsMEMORYGPUs
      r5b.large 216 GiB0
      r5b.xlarge 432 GiB0
      r5b.4xlarge 16128 GiB0
      r5b.8xlarge 32256 GiB0
      r5b.12xlarge 48384 GiB0
      r5b.16xlarge 64512 GiB0
      r5b.24xlarge 96768 GiB0

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      r5b.2xlarge FAQs