logo

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 0.1259 USD per hour.
8 vCPU
64 GiB Memory
Spare SCore
2361
(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
2026-07-28T18:50:56.403009

Availability

REGION / IDSPOTONDEMAND
Mumbai (IN) / ap-south-1
0.1348 USD/h 0.286 USD/h
Ohio (US) / us-east-2
0.176333 USD/h 0.452 USD/h
Northern Virgina (US) / us-east-1
0.20562 USD/h 0.452 USD/h
Oregon (US) / us-west-2
0.207625 USD/h 0.452 USD/h
Quebec (CA) / ca-central-1
0.2032 USD/h 0.496 USD/h
California (US) / us-west-1
0.2283 USD/h 0.504 USD/h
Dublin (IE) / eu-west-1
0.270667 USD/h 0.508 USD/h
Milan (IT) / eu-south-1
0.173833 USD/h 0.532 USD/h
Paris (FR) / eu-west-3
0.193433 USD/h 0.532 USD/h
London (GB) / eu-west-2
0.210233 USD/h 0.532 USD/h
Seoul (KR) / ap-northeast-2
0.23145 USD/h 0.544 USD/h
Sydney (AU) / ap-southeast-2
0.250733 USD/h 0.544 USD/h
Singapore (SG) / ap-southeast-1
0.268067 USD/h 0.544 USD/h
Tokyo (JP) / ap-northeast-1
0.212633 USD/h 0.548 USD/h
Frankfurt (DE) / eu-central-1
0.2636 USD/h 0.548 USD/h
Sao Paulo (BR) / sa-east-1
0.18415 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
100

System Resources and Accelerators

MEMORY
Memory Amount
64 GiB
Memory Amount Actual
64 GiB
Memory Generation
DDR4
Memory Speed
2667 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
      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 64 GB of RAM and AMD EPYC processors, designed for memory-intensive workloads with moderate compute requirements.

      Memory OptimizedGeneral Purpose

      Amazon Web Services r5a.2xlarge is a memory-optimized instance featuring 8 vCPUs and 64.0 GB of DDR4 RAM, powered by an AMD EPYC 7571 processor running at 2.5 GHz. Built on the AWS Nitro hypervisor, this x86_64 instance provides a high memory-to-vCPU ratio of 8.0 GB per core, though it lacks local storage and dedicated GPUs. Performance benchmarks indicate a clear tradeoff: while Passmark CPU and encryption tests reach average levels, single-core compute, multi-core stress tests, and large-block memory bandwidth fall into the lower percentiles. This makes the instance a cost-efficient option for memory-intensive workloads that are not highly sensitive to CPU throughput, such as caching layers, database operations, and memory-optimized enterprise applications.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.286Score
      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 1,896,415 ops/sec 0.227 50.00% 50.00% -52.40%
      Redis RPS (pipeline=16, SET) 2,820,688 ops/sec 11,539,523 ops/sec 0.244 20.00% 20.00% -24.60%
      PassMark Memory Mark (composite) 1,801 2,411 0.747 10.00% 10.00% -2.87%
      Memory bandwidth (read, 16 MB ~ L3) 24,117 MB/sec 107,368 MB/sec 0.225 10.00% 10.00% -13.90%
      PassMark single-thread CPU 1,444 Mops/s 2,363 Mops/s 0.611 10.00% 10.00% -4.81%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 724

      Geekbench Multi-Core

      Score: 2,909

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 6837
      Compression
      		 88087
      Encryption
      		 6464
      Extended Instructions
      		 3245
      Floating Point Maths
      		 10921
      Integer Maths
      		 20667
      Physics
      		 570
      Prime Numbers
      		 21
      Single Threaded
      		 1444
      String Sorting
      		 12699

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 1801
      Database Operations
      		 1917
      Memory Latency
      		 67
      Memory Read Cached
      		 14830
      Memory Read Uncached
      		 10609
      Memory Write
      		 7483

      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
      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

      Similar Servers

      INSTANCEVENDORvCPUsMEMORYGPUs

      r5a.2xlarge FAQs