m5a.16xlarge by Amazon Web Services

m5a.16xlarge is a General purpose [AMD processors] Gen5 16xlarge server offered by Amazon Web Services with 64 vCPUs, 256 GiB of memory and 0 GB of storage. The pricing starts at 0.3072 USD per hour.
64 vCPU
256 GiB Memory
Spare SCore
18,892
(All-cores)
591
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
m5a.16xlarge
Description
General purpose [AMD processors] Gen5 16xlarge
Family
General Purpose
Series
m5a
Hw Virt
Status
active
Observed At
2026-11-11T22:18:05.946281

Availability

REGION / IDSPOTONDEMAND
Mumbai (IN) / ap-south-1
0.8465 USD/h 1.778 USD/h
Ohio (US) / us-east-2
0.790367 USD/h 2.752 USD/h
Northern Virgina (US) / us-east-1
0.89388 USD/h 2.752 USD/h
Oregon (US) / us-west-2
1.183175 USD/h 2.752 USD/h
Quebec (CA) / ca-central-1
1.5422 USD/h 3.072 USD/h
Dublin (IE) / eu-west-1
1.529933 USD/h 3.072 USD/h
London (GB) / eu-west-2
1.295467 USD/h 3.2 USD/h
Milan (IT) / eu-south-1
0.437967 USD/h 3.232 USD/h
Paris (FR) / eu-west-3
0.7584 USD/h 3.232 USD/h
California (US) / us-west-1
0.88345 USD/h 3.232 USD/h
Frankfurt (DE) / eu-central-1
1.426533 USD/h 3.328 USD/h
Seoul (KR) / ap-northeast-2
0.41865 USD/h 3.392 USD/h
Singapore (SG) / ap-southeast-1
1.349267 USD/h 3.456 USD/h
Sydney (AU) / ap-southeast-2
1.2958 USD/h 3.456 USD/h
Tokyo (JP) / ap-northeast-1
1.2517 USD/h 3.584 USD/h
Sao Paulo (BR) / sa-east-1
0.553667 USD/h 4.416 USD/h

Processor

vCPUs
64
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
32
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
1 MiB
CPU L1I Cache
64 KiB
CPU L1I Cache Total
2 MiB
CPU L2 Cache
512 KiB
CPU L2 Cache Total
16 MiB
CPU L3 Cache
8 MiB
CPU L3 Cache Total
64 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, amd_dcm, 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
32
Scalability
50

System Resources and Accelerators

MEMORY
Memory Amount
256 GiB
Memory Amount Actual
256 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
      Compatible Storage IDs
      standard, gp2, gp3, st1, sc1, io1, io2
      NETWORK
      Network Speed Baseline
      12 Gbps
      Network Speed Max
      12 Gbps
      Network Storage Speed Baseline
      9.5 Gbps
      Network Storage Speed Max
      9.5 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A balanced x86 general-purpose instance featuring high core density and memory capacity for parallelized enterprise workloads.

      Amazon Web Services m5a.16xlarge is a general-purpose server featuring 64 dedicated vCPUs powered by an AMD EPYC 7571 processor running at 2.5 GHz. Built on the Nitro hypervisor, it includes 256.0 GB of DDR4 memory but lacks local storage and GPU acceleration. Baseline network performance is 12 Gbps. Benchmarks show a distinct performance split: single-core metrics are in the bottom 10%, whereas multi-core and memory bandwidth tests fall in the middle 50%. Cryptographic execution is a strength, placing in the top 25%. Due to its lower single-thread performance and lack of AVX-512, this server is best suited for highly parallelized workloads, such as multi-threaded web serving, database operations, and general-purpose enterprise applications that benefit from high memory capacity and core density rather than raw single-core speed.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1.4Score
      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) 3,232,659 ops/sec 1,926,573 ops/sec 1.7 50.00% 50.00% +30.00%
      Redis RPS (pipeline=16, SET) 21,472,603 ops/sec 11,810,473 ops/sec 1.8 20.00% 20.00% +12.00%
      PassMark Memory Mark (composite) 2,273 2,407 0.96 10.00% 10.00% -0.41%
      Memory bandwidth (read, 16 MB ~ L3) 125,030 MB/sec 108,674 MB/sec 1.2 10.00% 10.00% +1.80%
      PassMark single-thread CPU 1,449 Mops/s 2,365 Mops/s 0.58 10.00% 10.00% -5.30%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 726

      Geekbench Multi-Core

      Score: 7,646

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 37,125
      Compression
      		 706,694
      Encryption
      		 51,802
      Extended Instructions
      		 26,238
      Floating Point Maths
      		 87,313
      Integer Maths
      		 165,553
      Physics
      		 3,750
      Prime Numbers
      		 150
      Single Threaded
      		 1,449
      String Sorting
      		 96,754

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2,273
      Database Operations
      		 15,231
      Memory Latency
      		 58
      Memory Read Cached
      		 14,981
      Memory Read Uncached
      		 11,806
      Memory Write
      		 8,182

      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
      t2.nano 10.5 GiB0
      t1.micro 10.6 GiB0
      t2.micro 11 GiB0
      m1.small 12 GiB0
      t2.small 12 GiB0
      m1.medium 14 GiB0
      m3.medium 14 GiB0

      Similar Servers

      INSTANCEVENDORvCPUsMEMORYAccelerators

      m5a.16xlarge FAQs