r5a.2xlarge by Amazon Web Services

r5a.2xlarge is a Memory optimized [AMD processors] Gen5 2xlarge server offered by Amazon Web Services with 8 vCPUs, 64 GiB of memory and 0 GB of storage. The pricing starts at 0.1 USD per hour.
8 vCPU
64 GiB Memory
Spare SCore
2,361
(All-cores)
591
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r5a.2xlarge
Description
Memory optimized [AMD processors] Gen5 2xlarge
Family
r5a
Hw Virt
Status
active
Observed At
2026-10-27T06:58:17.803332

Availability

REGION / IDSPOTONDEMAND
Mumbai (IN) / ap-south-1
0.148933 USD/h 0.286 USD/h
Ohio (US) / us-east-2
0.1682 USD/h 0.452 USD/h
Oregon (US) / us-west-2
0.202325 USD/h 0.452 USD/h
Northern Virgina (US) / us-east-1
0.2059 USD/h 0.452 USD/h
Quebec (CA) / ca-central-1
0.20475 USD/h 0.496 USD/h
California (US) / us-west-1
0.2094 USD/h 0.504 USD/h
Dublin (IE) / eu-west-1
0.279767 USD/h 0.508 USD/h
Milan (IT) / eu-south-1
0.184933 USD/h 0.532 USD/h
Paris (FR) / eu-west-3
0.210967 USD/h 0.532 USD/h
London (GB) / eu-west-2
0.1978 USD/h 0.532 USD/h
Seoul (KR) / ap-northeast-2
0.142 USD/h 0.544 USD/h
Singapore (SG) / ap-southeast-1
0.241167 USD/h 0.544 USD/h
Sydney (AU) / ap-southeast-2
0.265867 USD/h 0.544 USD/h
Tokyo (JP) / ap-northeast-1
0.224667 USD/h 0.548 USD/h
Frankfurt (DE) / eu-central-1
0.2555 USD/h 0.548 USD/h
Sao Paulo (BR) / sa-east-1
0.1135 USD/h 0.724 USD/h

Processor

vCPUs
8
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
4
CPU Speed
2.5 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU Model
7571
CPU L1D Cache
32 KiB
CPU L1D Cache Total
128 KiB
CPU L1I Cache
64 KiB
CPU L1I Cache Total
256 KiB
CPU L2 Cache
512 KiB
CPU L2 Cache Total
2 MiB
CPU L3 Cache
8 MiB
CPU L3 Cache Total
8 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, ht, syscall, nx, mmxext, fxsr_opt, pdpe1gb, rdtscp, lm, constant_tsc, rep_good, nopl, nonstop_tsc, cpuid, extd_apicid, aperfmperf, tsc_known_freq, pni, pclmulqdq, ssse3, fma, cx16, sse4_1, sse4_2, movbe, popcnt, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, cmp_legacy, cr8_legacy, abm, sse4a, misalignsse, 3dnowprefetch, topoext, perfctr_core, vmmcall, fsgsbase, bmi1, avx2, smep, bmi2, rdseed, adx, smap, clflushopt, sha_ni, xsaveopt, xsavec, xgetbv1, clzero, xsaveerptr, arat, npt, nrip_save
Ecpus
4
Scalability
50

System Resources and Accelerators

MEMORY
Memory Amount
64 GiB
Memory Amount Actual
64 GiB
Memory Generation
DDR4
Memory Speed
2667 Mhz
ACCELERATORS
Accelerator Count
0
Accelerator Memory Min
0 MiB
Accelerator Memory Total
0 MiB
Accelerators
    STORAGE
    Storage Size
    0 GB
    Storages
      NETWORK
      Network Speed Baseline
      2.5 Gbps
      Network Speed Max
      10 Gbps
      Network Storage Speed Baseline
      1.58 Gbps
      Network Storage Speed Max
      2.88 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A memory-optimized instance featuring a high RAM-to-vCPU ratio for memory-bound workloads with moderate processing requirements.

      Memory Optimized

      Amazon Web Services r5a.2xlarge is a memory-optimized instance featuring 8 vCPUs and 64.0 GB of DDR4 RAM, running on an AMD EPYC 7571 processor at 2.5 GHz. Built on the AWS Nitro hypervisor, this x86_64 instance offers a high memory-to-vCPU ratio of 8.0 GB per core but lacks local storage. Performance benchmarks indicate modest compute capabilities, with stress-ng and large-block memory bandwidth tests scoring in the bottom 10%. However, it achieves average results in Passmark CPU and encryption tests. The r5a.2xlarge represents a qualitative tradeoff, providing a large memory footprint at a lower performance tier. It is best suited for memory-intensive workloads with moderate CPU requirements, such as caching layers, basic database deployments, and general-purpose memory-bound applications.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.28Score
      Precomputed compound score for Cache Intensive workloads. A weighted average (geometric mean) of benchmark scores compared to their medians: score = ∏ (x_i / m_i)^(w_i / Σw). The score of 1.0 represents a synthetic baseline server with the median performance of each component benchmark; 0.5 means roughly half the performance; and 2.0 means twice the performance of that reference profile. Component weights: 50% Redis RPS (pipeline=1, SET), 20% Redis RPS (pipeline=16, SET), 10% PassMark Memory Mark (composite), 10% Memory bandwidth (read, 16 MB ~ L3), 10% PassMark single-thread CPU. Rationale for component selection: In-memory key-value store workload, mixing direct Redis performance metrics with memory speed and latency benchmarks, and single-core CPU performance profiles.
      Component Score Weight Impact
      Raw Reference Normalized Target Actual
      Redis RPS (pipeline=1, SET) 429,769 ops/sec 1,918,343 ops/sec 0.23 50.00% 50.00% -52.00%
      Redis RPS (pipeline=16, SET) 2,820,688 ops/sec 11,704,734 ops/sec 0.23 20.00% 20.00% -25.00%
      PassMark Memory Mark (composite) 1,801 2,416 0.75 10.00% 10.00% -2.80%
      Memory bandwidth (read, 16 MB ~ L3) 24,117 MB/sec 108,420 MB/sec 0.22 10.00% 10.00% -14.00%
      PassMark single-thread CPU 1,444 Mops/s 2,365 Mops/s 0.58 10.00% 10.00% -5.30%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 724

      Geekbench Multi-Core

      Score: 2,909

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 6,837
      Compression
      		 88,087
      Encryption
      		 6,464
      Extended Instructions
      		 3,245
      Floating Point Maths
      		 10,921
      Integer Maths
      		 20,667
      Physics
      		 570
      Prime Numbers
      		 21
      Single Threaded
      		 1,444
      String Sorting
      		 12,699

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 1,801
      Database Operations
      		 1,917
      Memory Latency
      		 67
      Memory Read Cached
      		 14,830
      Memory Read Uncached
      		 10,609
      Memory Write
      		 7,483

      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

      INSTANCEvCPUsMEMORYAccelerators
      r5a.large 216 GiB0
      r5a.xlarge 432 GiB0
      r5a.4xlarge 16128 GiB0
      r5a.8xlarge 32256 GiB0
      r5a.12xlarge 48384 GiB0
      r5a.16xlarge 64512 GiB0
      r5a.24xlarge 96768 GiB0

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      r5a.2xlarge FAQs