E64a_v4 by Microsoft Azure

E64a_v4 is a EAv4 family [AMD processor] 64 vCPUs server offered by Microsoft Azure with 64 vCPUs, 512 GiB of memory and 1.64 TB of storage. The pricing starts at 0.4698 USD per hour.
64 vCPU
512 GiB Memory
1.64 TB Storage
Spare SCore
24,190
(All-cores)
777
(Single-core)

Specifications

Server Metadata

Vendor ID
azure
Server ID
Standard_E64a_v4
Name
E64a_v4
API Reference
Standard_E64a_v4
Description
EAv4 family [AMD processor] 64 vCPUs
Family
EAv4
Hw Virt
Average Time To Start
32
Status
active
Observed At
2026-11-03T09:14:20.045438

Availability

REGION / IDSPOTONDEMAND
Central India (IN) / centralindia
0.4698 USD/h 2.542 USD/h
Jio India Central (IN) / jioindiacentral
- 2.542 USD/h
Jio India West (IN) / jioindiawest
- 2.542 USD/h
East US 2 (US) / eastus2
0.7451 USD/h 4.032 USD/h
North Central US (US) / northcentralus
0.7451 USD/h 4.032 USD/h
West US 2 (US) / westus2
0.7451 USD/h 4.032 USD/h
West US 3 (US) / westus3
0.7451 USD/h 4.032 USD/h
East US (US) / eastus
0.8487 USD/h 4.032 USD/h
India South Central (IN) / indiasouthcentral
0.7688 USD/h 4.16 USD/h
Spain Central (ES) / spaincentral
0.7865 USD/h 4.256 USD/h
Sweden Central (SE) / swedencentral
0.7924 USD/h 4.288 USD/h
Indonesia Central (ID) / indonesiacentral
0.8043 USD/h 4.352 USD/h
Malaysia West (MY) / malaysiawest
0.8091 USD/h 4.378 USD/h
Austria East (AT) / austriaeast
0.8102 USD/h 4.384 USD/h
Belgium Central (BE) / belgiumcentral
0.8102 USD/h 4.384 USD/h
Denmark East (DK) / denmarkeast
0.8102 USD/h 4.384 USD/h
Canada Central (CA) / canadacentral
0.8161 USD/h 4.416 USD/h
Canada East (CA) / canadaeast
0.8161 USD/h 4.416 USD/h
Mexico Central (ZA) / mexicocentral
0.8196 USD/h 4.435 USD/h
West US (US) / westus
0.8279 USD/h 4.48 USD/h
North Europe (IE) / northeurope
0.8338 USD/h 4.512 USD/h
Central US (US) / centralus
0.8415 USD/h 4.556 USD/h
Korea South (KR) / koreasouth
0.8516 USD/h 4.608 USD/h
UK South (GB) / uksouth
0.8321 USD/h 4.736 USD/h
France Central (FR) / francecentral
0.8752 USD/h 4.736 USD/h
Israel Central (IL) / israelcentral
0.8752 USD/h 4.736 USD/h
Italy North (IT) / italynorth
0.8752 USD/h 4.736 USD/h
Australia Central 2 (AU) / australiacentral2
0.4832 USD/h 4.832 USD/h
Australia Central (AU) / australiacentral
0.893 USD/h 4.832 USD/h
Australia East (AU) / australiaeast
0.893 USD/h 4.832 USD/h
South Central US (US) / southcentralus
0.8941 USD/h 4.838 USD/h
West Central US (US) / westcentralus
0.8941 USD/h 4.838 USD/h
Germany West Central (DE) / germanywestcentral
0.8989 USD/h 4.864 USD/h
Japan East (JP) / japaneast
0.8989 USD/h 4.864 USD/h
Japan West (JP) / japanwest
0.8989 USD/h 4.864 USD/h
Korea Central (KR) / koreacentral
0.8989 USD/h 4.864 USD/h
Poland Central (PL) / polandcentral
0.8989 USD/h 4.864 USD/h
Southeast Asia (SG) / southeastasia
0.8989 USD/h 4.864 USD/h
West Europe (NL) / westeurope
0.9884 USD/h 4.864 USD/h
UK West (GB) / ukwest
0.9016 USD/h 4.879 USD/h
Qatar Central (QA) / qatarcentral
0.9172 USD/h 4.963 USD/h
UAE North (AE) / uaenorth
0.9172 USD/h 4.963 USD/h
Chile Central (CL) / chilecentral
0.9355 USD/h 5.062 USD/h
New Zealand North (NZ) / newzealandnorth
0.9377 USD/h 5.074 USD/h
West India (IN) / westindia
0.9538 USD/h 5.161 USD/h
Australia Southeast (AU) / australiasoutheast
0.9687 USD/h 5.242 USD/h
East Asia (HK) / eastasia
0.9876 USD/h 5.344 USD/h
South Africa North (ZA) / southafricanorth
0.9935 USD/h 5.376 USD/h
South India (IN) / southindia
1.0506 USD/h 5.685 USD/h
Norway East (NO) / norwayeast
1.0656 USD/h 5.766 USD/h
Switzerland North (CH) / switzerlandnorth
1.0656 USD/h 5.766 USD/h
France South (FR) / francesouth
1.1378 USD/h 6.157 USD/h
Germany North (DE) / germanynorth
1.1685 USD/h 6.323 USD/h
Brazil South (BR) / brazilsouth
1.1886 USD/h 6.432 USD/h
UAE Central (AE) / uaecentral
1.1921 USD/h 6.451 USD/h
South Africa West (ZA) / southafricawest
1.2916 USD/h 6.989 USD/h
Norway West (NO) / norwaywest
1.3851 USD/h 7.495 USD/h
Switzerland West (CH) / switzerlandwest
1.3851 USD/h 7.495 USD/h
Brazil Southeast (US) / brazilsoutheast
1.5453 USD/h 8.362 USD/h

Processor

vCPUs
64
Hypervisor
Microsoft Hyper-V
CPU Allocation
Dedicated
CPU Cores
32
CPU Speed
3.525 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU Model
7452
CPU L1D Cache
32 KiB
CPU L1D Cache Total
1 MiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
1 MiB
CPU L2 Cache
512 KiB
CPU L2 Cache Total
16 MiB
CPU L3 Cache
32 MiB
CPU L3 Cache Total
128 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, rep_good, nopl, cpuid, extd_apicid, 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, osvw, topoext, ssbd, vmmcall, fsgsbase, bmi1, avx2, smep, bmi2, rdseed, adx, smap, clflushopt, clwb, sha_ni, xsaveopt, xsavec, xgetbv1, xsaveerptr, arat, umip, rdpid
Ecpus
31.1
Scalability
48.59

System Resources and Accelerators

MEMORY
Memory Amount
512 GiB
Memory Amount Actual
512 GiB
ACCELERATORS
Accelerator Count
0
Accelerator Memory Min
0 MiB
Accelerator Memory Total
0 MiB
Accelerators
    STORAGE
    Storage Size
    1638 GB
    Storage Type
    ssd
    Storages
    • 1638 GB ssd (temp disk)
    NETWORK
    Inbound Traffic
    0 GB/month
    Outbound Traffic
    0 GB/month
    IPv4
    0

    CPU and System Topology

    Server Description

    A memory-optimized virtual server featuring sixty-four dedicated AMD cores, half a terabyte of RAM, and integrated local SSD storage.

    Memory OptimizedStorage & Database

    The Microsoft Azure E64a_v4 is a memory-optimized virtual machine powered by an AMD EPYC 7452 processor with 64 dedicated vCPUs and 32 physical cores. Operating at 3.525 GHz, this x86_64 server is equipped with 512.0 GB of RAM, providing a high 1:8 vCPU-to-memory ratio, and includes a 1638 GB local SSD. While single-core benchmarks like stress-ng place in the bottom 10%, its multi-threaded capabilities are robust, with Passmark CPU and memory scores ranking in the top 25%. The server delivers strong multi-threaded decompression and encryption performance, though it exhibits weak results in large-model LLM inference. This configuration is highly suitable for memory-intensive workloads, including large databases, in-memory analytics, and enterprise applications requiring substantial local storage.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    1.9Score
    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) 4,593,020 ops/sec 1,920,103 ops/sec 2.4 50.00% 50.00% +55.00%
    Redis RPS (pipeline=16, SET) 28,942,924 ops/sec 11,744,104 ops/sec 2.4 20.00% 20.00% +19.00%
    PassMark Memory Mark (composite) 2,844 2,415 1.2 10.00% 10.00% +1.80%
    Memory bandwidth (read, 16 MB ~ L3) 108,106 MB/sec 108,490 MB/sec 1 10.00% 10.00% 0.00%
    PassMark single-thread CPU 2,129 Mops/s 2,365 Mops/s 0.88 10.00% 10.00% -1.30%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 1,382

    Geekbench Multi-Core

    Score: 11,886

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 52,455
    Compression
    		 831,909
    Encryption
    		 63,026
    Extended Instructions
    		 46,785
    Floating Point Maths
    		 125,811
    Integer Maths
    		 211,641
    Physics
    		 5,192
    Prime Numbers
    		 308
    Single Threaded
    		 2,129
    String Sorting
    		 106,230

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 2,844
    Database Operations
    		 20,129
    Memory Latency
    		 51
    Memory Read Cached
    		 24,797
    Memory Read Uncached
    		 12,437
    Memory Write
    		 10,824

    Stress-ng Stressors

    CPU integerSingleMultiScaling
    atomic
    		 361.72 162.41 0.45×
    bitops
    		 142,053 5,179,120 36.46×
    branch
    		 164,782 9,545,184 57.93×
    funccall
    		 540.59 22,145 40.96×
    funcret
    		 17,096 691,817 40.47×
    hash
    		 136,638 6,592,559 48.25×
    intmath
    		 58,047 2,489,451 42.89×
    nop
    		 283,152 9,033,648 31.90×
    prime
    		 392,409 15,279,822 38.94×
    rotate
    		 74,190 2,451,134 33.04×
    str
    		 867,386 32,656,342 37.65×
    wcs
    		 558,056 20,935,602 37.52×
    CryptographySingleMultiScaling
    crypt
    		 3,186 99,498 31.23×
    CompressionSingleMultiScaling
    jpeg
    		 743.76 31,781 42.73×
    zlib
    		 50.35 2,948 58.54×
    HypervisorSingleMultiScaling
    clock
    		 3,746 95,425 25.48×
    clone
    		 1,021 26,184 25.64×
    context
    		 3,435 183,607 53.46×
    cpu-sched
    		 61.72 4,008 64.94×
    eventfd
    		 31,100 2,286,788 73.53×
    fault
    		 8,425 161,629 19.19×
    fork
    		 4,555 51,413 11.29×
    getrandom
    		 45,285 1,834,077 40.50×
    hrtimers
    		 69,482 2,075,450 29.87×
    mprotect
    		 631,066 11,392,612 18.05×
    mtx
    		 26,204,284 3,313,775,624 126.46×
    munmap
    		 2,989 52,056 17.42×
    null
    		 437,433 22,442,058 51.30×
    pipe
    		 1,735,145 26,870,041 15.49×
    priv-instr
    		 394,082 17,525,498 44.47×
    resched
    		 6,268,109 3,067,914 0.49×
    switch
    		 67,238 9,569,160 142.32×
    timermix
    		 42,251 2,541,653 60.16×
    tlb-shootdown
    		 10,472 125,878 12.02×
    tsc
    		 668,561 40,635,318 60.78×
    usersyscall
    		 314,121 14,767,785 47.01×
    vdso
    		 73,707,763 3,818,417,167 51.80×
    vfork
    		 23,454 149,197 6.36×
    x86syscall
    		 5,446,636 280,765,707 51.55×
    yield
    		 34,991,184 38,480,917 1.10×
    zero
    		 2,907,240 139,571,996 48.01×
    CPU float/SIMDSingleMultiScaling
    eigen
    		 14,020 459,154 32.75×
    expmath
    		 2,473 124,134 50.20×
    fma
    		 774,814 38,090,822 49.16×
    fp
    		 227.74 10,436 45.82×
    fractal
    		 6.8 352.9 51.90×
    hyperbolic
    		 3,296 159,126 48.27×
    logmath
    		 3,883 176,660 45.49×
    matrix
    		 2,712 127,857 47.15×
    matrix-3d
    		 88.51 4,425 49.99×
    monte-carlo
    		 204.33 10,278 50.30×
    mpfr
    		 1,404 54,108 38.53×
    powmath
    		 1,191 61,864 51.95×
    trig
    		 1,496 72,704 48.60×
    veccmp
    		 15,999 666,856 41.68×
    vecfp
    		 1,481 65,227 44.05×
    vecmath
    		 3,439 174,807 50.83×
    vecshuf
    		 535.79 19,731 36.83×
    vecwide
    		 23,704 954,172 40.25×
    AlgorithmsSingleMultiScaling
    bitonicsort
    		 8.8 292.39 33.23×
    bsearch
    		 254.78 10,989 43.13×
    bubblesort
    		 0.8 36.8 46.00×
    fibsearch
    		 321.46 12,237 38.07×
    heapsort
    		 9.4 358.79 38.17×
    hsearch
    		 7,531 278,872 37.03×
    insertionsort
    		 11.6 310.79 26.79×
    malloc
    		 2,934,000 87,182,911 29.71×
    mcontend
    		 87.53 8,625 98.54×
    mergesort
    		 27.6 1,290 46.74×
    qsort
    		 17.8 798.16 44.84×
    skiplist
    		 6,229 299,953 48.16×
    tree
    		 1.8 52.99 29.44×
    MemorySingleMultiScaling
    cache
    		 475,009 1,871,887 3.94×
    cachehammer
    		 237,594 9,706,823 40.85×
    cacheline
    		 54.16 2,163 39.93×
    l1cache
    		 145.33 4,904 33.74×
    memcpy
    		 366.51 10,917 29.79×
    memrate
    		 2.95 15.16 5.14×
    memthrash
    		 122.3 781.79 6.39×
    ptr-chase
    		 65,816,268 582,676,998 8.85×
    spinmem
    		 267.79 1,636 6.11×
    stream
    		 25.13 7,259 288.87×
    vm
    		 161,865 300,269 1.86×

    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
    E2a_v4 216 GiB0
    E4a_v4 432 GiB0
    E8a_v4 864 GiB0
    E16a_v4 16128 GiB0
    E20a_v4 20160 GiB0
    E32a_v4 32256 GiB0
    E48a_v4 48384 GiB0

    Similar Servers

    INSTANCEVENDORvCPUsMEMORYAccelerators

    E64a_v4 FAQs