m5ad.16xlarge by Amazon Web Services

m5ad.16xlarge is a General purpose [AMD processors] [Instance store volumes] Gen5 16xlarge server offered by Amazon Web Services with 64 vCPUs, 256 GiB of memory and 2.4 TB of storage. The pricing starts at 0.5496 USD per hour.
64 vCPU
256 GiB Memory
2.4 TB Storage
Spare SCore
18,898
(All-cores)
591
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
m5ad.16xlarge
Description
General purpose [AMD processors] [Instance store volumes] Gen5 16xlarge
Family
m5ad
Hw Virt
Status
active
Observed At
2026-10-24T22:03:23.074738

Availability

REGION / IDSPOTONDEMAND
Mumbai (IN) / ap-south-1
0.8363 USD/h 2.147 USD/h
Ohio (US) / us-east-2
1.037767 USD/h 3.296 USD/h
Northern Virgina (US) / us-east-1
1.25644 USD/h 3.296 USD/h
Oregon (US) / us-west-2
1.470475 USD/h 3.296 USD/h
Quebec (CA) / ca-central-1
1.5164 USD/h 3.68 USD/h
Dublin (IE) / eu-west-1
1.578067 USD/h 3.68 USD/h
London (GB) / eu-west-2
1.707067 USD/h 3.84 USD/h
Paris (FR) / eu-west-3
1.2584 USD/h 3.872 USD/h
California (US) / us-west-1
0.868 USD/h 3.904 USD/h
Frankfurt (DE) / eu-central-1
1.5389 USD/h 4 USD/h
Seoul (KR) / ap-northeast-2
1.00565 USD/h 4.064 USD/h
Singapore (SG) / ap-southeast-1
1.473433 USD/h 4.128 USD/h
Sydney (AU) / ap-southeast-2
1.243133 USD/h 4.16 USD/h
Tokyo (JP) / ap-northeast-1
1.1733 USD/h 4.288 USD/h
Sao Paulo (BR) / sa-east-1
0.54995 USD/h 5.28 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
    2400 GB
    Storage Type
    nvme ssd
    Storages
    • 600 GB nvme ssd
    • 600 GB nvme ssd
    • 600 GB nvme ssd
    • 600 GB nvme ssd
    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 general-purpose platform combining dedicated AMD EPYC processors with high-capacity local NVMe SSD storage for multi-threaded workloads.

    General PurposeStorage & Database

    The Amazon Web Services m5ad.16xlarge is a general-purpose instance built on the Nitro hypervisor, featuring a 64-vCPU AMD EPYC 7571 processor and 256 GB of DDR4 memory. It includes 2400 GB of local NVMe SSD storage and a 12 Gbps baseline network speed. While single-core benchmarks place the instance in the bottom 10% due to its 2.5 GHz clock speed, its multi-core and cryptographic capabilities perform at average to strong levels, with Passmark encryption scoring in the top 25%. The balanced 1:4 vCPU-to-RAM ratio combined with high-capacity local NVMe storage makes this instance a cost-efficient choice for multi-threaded workloads, database operations, and web serving that require fast local scratch space, though it is less suited for single-threaded or intensive machine learning inference tasks.

    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) 3,299,262 ops/sec 1,919,289 ops/sec 1.7 50.00% 50.00% +30.00%
    Redis RPS (pipeline=16, SET) 21,605,289 ops/sec 11,728,058 ops/sec 1.8 20.00% 20.00% +12.00%
    PassMark Memory Mark (composite) 2,245 2,416 0.92 10.00% 10.00% -0.83%
    Memory bandwidth (read, 16 MB ~ L3) 125,200 MB/sec 108,466 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: 731

    Geekbench Multi-Core

    Score: 7,518

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 37,068
    Compression
    		 706,412
    Encryption
    		 51,288
    Extended Instructions
    		 26,060
    Floating Point Maths
    		 87,351
    Integer Maths
    		 165,888
    Physics
    		 3,732
    Prime Numbers
    		 150
    Single Threaded
    		 1,449
    String Sorting
    		 96,129

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 2,245
    Database Operations
    		 15,208
    Memory Latency
    		 60
    Memory Read Cached
    		 14,920
    Memory Read Uncached
    		 11,730
    Memory Write
    		 8,251

    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
    m5ad.large 28 GiB0
    m5ad.xlarge 416 GiB0
    m5ad.2xlarge 832 GiB0
    m5ad.4xlarge 1664 GiB0
    m5ad.8xlarge 32128 GiB0
    m5ad.12xlarge 48192 GiB0
    m5ad.24xlarge 96384 GiB0

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    m5ad.16xlarge FAQs