r5a.xlarge by Amazon Web Services

r5a.xlarge is a Memory optimized [AMD processors] Gen5 xlarge server offered by Amazon Web Services with 4 vCPUs, 32 GiB of memory and 0 GB of storage. The pricing starts at 0.06 USD per hour.
4 vCPU
32 GiB Memory
Spare SCore
1,179
(All-cores)
590
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r5a.xlarge
Description
Memory optimized [AMD processors] Gen5 xlarge
Family
r5a
Hw Virt
Status
active
Observed At
2026-09-14T21:57:16.512418

Availability

REGION / IDSPOTONDEMAND
Mumbai (IN) / ap-south-1
0.067967 USD/h 0.143 USD/h
Ohio (US) / us-east-2
0.0821 USD/h 0.226 USD/h
Oregon (US) / us-west-2
0.10165 USD/h 0.226 USD/h
Northern Virgina (US) / us-east-1
0.10118 USD/h 0.226 USD/h
Quebec (CA) / ca-central-1
0.10895 USD/h 0.248 USD/h
California (US) / us-west-1
0.10405 USD/h 0.252 USD/h
Dublin (IE) / eu-west-1
0.1302 USD/h 0.254 USD/h
Milan (IT) / eu-south-1
0.0837 USD/h 0.266 USD/h
London (GB) / eu-west-2
0.105533 USD/h 0.266 USD/h
Paris (FR) / eu-west-3
0.1076 USD/h 0.266 USD/h
Seoul (KR) / ap-northeast-2
0.10675 USD/h 0.272 USD/h
Singapore (SG) / ap-southeast-1
0.1232 USD/h 0.272 USD/h
Sydney (AU) / ap-southeast-2
0.1289 USD/h 0.272 USD/h
Tokyo (JP) / ap-northeast-1
0.114133 USD/h 0.274 USD/h
Frankfurt (DE) / eu-central-1
0.1499 USD/h 0.274 USD/h
Sao Paulo (BR) / sa-east-1
0.07285 USD/h 0.362 USD/h

Processor

vCPUs
4
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
2
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
64 KiB
CPU L1I Cache
64 KiB
CPU L1I Cache Total
128 KiB
CPU L2 Cache
512 KiB
CPU L2 Cache Total
1 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, vmmcall, fsgsbase, bmi1, avx2, smep, bmi2, rdseed, adx, smap, clflushopt, sha_ni, xsaveopt, xsavec, xgetbv1, clzero, xsaveerptr, arat, npt, nrip_save
Ecpus
2
Scalability
100

System Resources and Accelerators

MEMORY
Memory Amount
32 GiB
Memory Amount Actual
32 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
      1.25 Gbps
      Network Speed Max
      10 Gbps
      Network Storage Speed Baseline
      1.085 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 offering a high RAM-to-vCPU ratio on AMD EPYC processors for cost-conscious, memory-intensive workloads.

      Memory OptimizedGeneral Purpose

      Amazon Web Services r5a.xlarge is a memory-optimized instance utilizing the AWS Nitro hypervisor and an x86_64 AMD EPYC 7571 processor. It delivers 4 dedicated vCPUs across 2 physical cores, paired with 32.0 GB of DDR4 memory running at 3 GHz. The instance does not include local storage or dedicated GPUs, and it operates with a baseline network bandwidth of 1 Gbps. Performance benchmarks indicate modest compute capabilities, with CPU and memory write speeds generally placing in the lower percentiles, though cryptographic performance remains average due to hardware-accelerated AES and SHA instructions. Given its high memory-to-vCPU ratio, the r5a.xlarge is qualitatively cost-effective for memory-intensive workloads that are not CPU-bound, such as caching layers, small-to-medium database deployments, and general-purpose memory-heavy applications.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.187Score
      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) 237,502 ops/sec 1,917,397 ops/sec 0.124 50.00% 50.00% -64.80%
      Redis RPS (pipeline=16, SET) 1,509,778 ops/sec 11,681,410 ops/sec 0.129 20.00% 20.00% -33.60%
      PassMark Memory Mark (composite) 1,780 2,418 0.736 10.00% 10.00% -3.02%
      Memory bandwidth (read, 16 MB ~ L3) 25,653 MB/sec 108,140 MB/sec 0.237 10.00% 10.00% -13.40%
      PassMark single-thread CPU 1,444 Mops/s 2,365 Mops/s 0.61 10.00% 10.00% -4.82%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 711

      Geekbench Multi-Core

      Score: 1,709

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 3658
      Compression
      		 43519
      Encryption
      		 3238
      Extended Instructions
      		 1590
      Floating Point Maths
      		 5449
      Integer Maths
      		 10288
      Physics
      		 381
      Prime Numbers
      		 16
      Single Threaded
      		 1444
      String Sorting
      		 6579

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 1780
      Database Operations
      		 991
      Memory Latency
      		 64
      Memory Read Cached
      		 14851
      Memory Read Uncached
      		 11312
      Memory Write
      		 8213

      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.2xlarge 864 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.xlarge FAQs