L4aos_v4 by Microsoft Azure

L4aos_v4 is a Laosv4 family [AMD processor] [o] [Premium Storage capable] 4 vCPUs server offered by Microsoft Azure with 4 vCPUs, 32 GiB of memory and 2.88 TB of storage. The pricing starts at 0.0736 USD per hour.
4 vCPU
32 GiB Memory
2.88 TB Storage
Spare SCore
6,155
(All-cores)
3,078
(Single-core)

Specifications

Server Metadata

Vendor ID
azure
Server ID
Standard_L4aos_v4
Name
L4aos_v4
API Reference
Standard_L4aos_v4
Description
Laosv4 family [AMD processor] [o] [Premium Storage capable] 4 vCPUs
Family
Laosv4
Hw Virt
Average Time To Start
160
Status
active
Observed At
2026-10-25T13:14:46.950619

Availability

REGION / IDSPOTONDEMAND
Indonesia Central (ID) / indonesiacentral
0.0736 USD/h 0.398 USD/h
Malaysia West (MY) / malaysiawest
0.0739 USD/h 0.4 USD/h
Austria East (AT) / austriaeast
0.0835 USD/h 0.452 USD/h
Belgium Central (BE) / belgiumcentral
0.0835 USD/h 0.452 USD/h
East US 2 (US) / eastus2
0.0835 USD/h 0.452 USD/h
New Zealand North (NZ) / newzealandnorth
0.0835 USD/h 0.452 USD/h
North Central US (US) / northcentralus
0.0835 USD/h 0.452 USD/h
West US 2 (US) / westus2
0.0835 USD/h 0.452 USD/h
West US 3 (US) / westus3
0.0835 USD/h 0.452 USD/h
East US (US) / eastus
0.0948 USD/h 0.452 USD/h
Sweden Central (SE) / swedencentral
0.0876 USD/h 0.474 USD/h
Mexico Central (ZA) / mexicocentral
0.0918 USD/h 0.497 USD/h
Canada Central (CA) / canadacentral
0.0924 USD/h 0.5 USD/h
North Europe (IE) / northeurope
0.0924 USD/h 0.5 USD/h
Spain Central (ES) / spaincentral
0.0924 USD/h 0.5 USD/h
West US (US) / westus
0.0924 USD/h 0.5 USD/h
Central US (US) / centralus
0.0943 USD/h 0.511 USD/h
Central India (IN) / centralindia
0.095 USD/h 0.514 USD/h
Italy North (IT) / italynorth
0.0968 USD/h 0.524 USD/h
France Central (FR) / francecentral
0.0972 USD/h 0.526 USD/h
UK South (GB) / uksouth
0.0972 USD/h 0.526 USD/h
Japan East (JP) / japaneast
0.0983 USD/h 0.532 USD/h
Korea Central (KR) / koreacentral
0.0983 USD/h 0.532 USD/h
Germany West Central (DE) / germanywestcentral
0.0998 USD/h 0.54 USD/h
Poland Central (PL) / polandcentral
0.0998 USD/h 0.54 USD/h
West Europe (NL) / westeurope
0.0998 USD/h 0.54 USD/h
Australia East (AU) / australiaeast
0.1002 USD/h 0.542 USD/h
South Central US (US) / southcentralus
0.1002 USD/h 0.542 USD/h
Southeast Asia (SG) / southeastasia
0.1002 USD/h 0.542 USD/h
UAE North (AE) / uaenorth
0.1016 USD/h 0.55 USD/h
South Africa North (ZA) / southafricanorth
0.1098 USD/h 0.594 USD/h
Switzerland North (CH) / switzerlandnorth
0.1098 USD/h 0.594 USD/h
East Asia (HK) / eastasia
0.1101 USD/h 0.596 USD/h
Chile Central (CL) / chilecentral
0.117 USD/h 0.633 USD/h
Norway East (NO) / norwayeast
0.1194 USD/h 0.646 USD/h
Brazil South (BR) / brazilsouth
0.1331 USD/h 0.72 USD/h

Processor

vCPUs
4
Hypervisor
Microsoft Hyper-V
CPU Allocation
Dedicated
CPU Cores
2
CPU Speed
3.7 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU Model
9V74
CPU L1D Cache
32 KiB
CPU L1D Cache Total
64 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
64 KiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
2 MiB
CPU L3 Cache
32 MiB
CPU L3 Cache Total
32 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, xtopology, tsc_reliable, nonstop_tsc, cpuid, extd_apicid, aperfmperf, tsc_known_freq, pni, pclmulqdq, ssse3, fma, cx16, pcid, sse4_1, sse4_2, movbe, popcnt, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, cmp_legacy, svm, cr8_legacy, abm, sse4a, misalignsse, 3dnowprefetch, osvw, topoext, vmmcall, fsgsbase, bmi1, avx2, smep, bmi2, erms, invpcid, avx512f, avx512dq, rdseed, adx, smap, avx512ifma, clflushopt, clwb, avx512cd, sha_ni, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, user_shstk, avx512_bf16, clzero, xsaveerptr, rdpru, arat, npt, nrip_save, tsc_scale, vmcb_clean, flushbyasid, decodeassists, pausefilter, pfthreshold, v_vmsave_vmload, avx512vbmi, umip, avx512_vbmi2, gfni, vaes, vpclmulqdq, avx512_vnni, avx512_bitalg, avx512_vpopcntdq, rdpid, fsrm
Ecpus
2
Scalability
50

System Resources and Accelerators

MEMORY
Memory Amount
32 GiB
Memory Amount Actual
32 GiB
ACCELERATORS
Accelerator Count
0
Accelerator Memory Min
0 MiB
Accelerator Memory Total
0 MiB
Accelerators
    STORAGE
    Storage Size
    2880 GB
    Storage Type
    nvme ssd
    Storages
    • 2880 GB nvme ssd
    NETWORK
    Inbound Traffic
    0 GB/month
    Outbound Traffic
    0 GB/month
    IPv4
    0

    CPU and System Topology

    Server Description

    A memory-dense and storage-rich instance featuring dedicated AMD EPYC cores and high local NVMe SSD capacity for disk-intensive workloads.

    Storage & DatabaseMemory Optimized

    Microsoft Azure L4aos_v4 is a storage and memory-dense cloud server built on x86_64 architecture and Hyper-V virtualization. It features 4 dedicated vCPUs across 2 physical cores of an AMD EPYC 9V74 processor running at 3.7 GHz, paired with 32 GB of RAM and 2880 GB of direct-attached local NVMe SSD storage. Hardware benchmarks show strong single-core CPU compute and text processing, complemented by average multi-core performance and average Redis operation throughput. Tested memory bandwidth on uncached reads and static web serving throughput register on the lower end. With an 8 GB RAM per vCPU allocation and extensive local SSD capacity bundled into the hardware profile, the instance provides clear resource density efficiency for localized database engines, memory-bound caching systems, and processing workloads requiring significant local storage performance without relying on network-attached storage volumes.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    0.36Score
    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) 425,139 ops/sec 1,919,289 ops/sec 0.23 50.00% 50.00% -52.00%
    Redis RPS (pipeline=16, SET) 3,300,759 ops/sec 11,728,058 ops/sec 0.28 20.00% 20.00% -22.00%
    PassMark Memory Mark (composite) 2,343 2,416 0.96 10.00% 10.00% -0.41%
    Memory bandwidth (read, 16 MB ~ L3) 67,053 MB/sec 108,466 MB/sec 0.61 10.00% 10.00% -4.80%
    PassMark single-thread CPU 2,890 Mops/s 2,365 Mops/s 1.2 10.00% 10.00% +1.80%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 2,071

    Geekbench Multi-Core

    Score: 4,736

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 7,524
    Compression
    		 78,239
    Encryption
    		 4,813
    Extended Instructions
    		 5,350
    Floating Point Maths
    		 10,596
    Integer Maths
    		 18,943
    Physics
    		 938
    Prime Numbers
    		 47
    Single Threaded
    		 2,890
    String Sorting
    		 11,549

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 2,343
    Database Operations
    		 1,937
    Memory Latency
    		 80
    Memory Read Cached
    		 27,827
    Memory Read Uncached
    		 26,275
    Memory Write
    		 25,588

    Stress-ng Stressors

    CPU integerSingleMultiScaling
    atomic
    		 350.61 350.96 1.00×
    bitops
    		 160,211 385,838 2.41×
    branch
    		 212,849 759,049 3.57×
    funccall
    		 617.85 1,748 2.83×
    funcret
    		 21,321 60,620 2.84×
    hash
    		 163,401 488,816 2.99×
    intmath
    		 67,018 172,045 2.57×
    nop
    		 627,965 1,266,230 2.02×
    prime
    		 479,294 1,266,309 2.64×
    rotate
    		 88,163 176,144 2.00×
    str
    		 1,018,591 2,684,514 2.64×
    wcs
    		 703,838 1,601,801 2.28×
    CryptographySingleMultiScaling
    crypt
    		 3,746 8,036 2.15×
    CompressionSingleMultiScaling
    jpeg
    		 871.75 2,396 2.75×
    zlib
    		 50.58 206.05 4.07×
    HypervisorSingleMultiScaling
    clock
    		 22,567 77,717 3.44×
    clone
    		 1,273 2,959 2.32×
    context
    		 3,045 10,734 3.53×
    cpu-sched
    		 73.45 261.32 3.56×
    eventfd
    		 43,403 278,694 6.42×
    fault
    		 10,795 34,661 3.21×
    fork
    		 5,545 15,254 2.75×
    getrandom
    		 52,076 137,307 2.64×
    hrtimers
    		 150,318 497,597 3.31×
    mprotect
    		 843,409 902,028 1.07×
    mtx
    		 29,693,219 268,473,352 9.04×
    munmap
    		 3,830 10,720 2.80×
    null
    		 350,850 1,218,660 3.47×
    pipe
    		 1,332,123 1,849,120 1.39×
    priv-instr
    		 451,823 1,499,259 3.32×
    resched
    		 696,513 247,728 0.36×
    switch
    		 83,552 706,731 8.46×
    timermix
    		 202,826 603,172 2.97×
    tlb-shootdown
    		 15,881 18,491 1.16×
    tsc
    		 785,439 3,050,925 3.88×
    usersyscall
    		 332,648 1,128,050 3.39×
    vdso
    		 94,408,923 304,868,360 3.23×
    vfork
    		 35,216 100,966 2.87×
    x86syscall
    		 4,166,721 14,510,392 3.48×
    yield
    		 2,325,654 2,194,323 0.94×
    zero
    		 2,776,680 9,584,662 3.45×
    CPU float/SIMDSingleMultiScaling
    eigen
    		 16,561 34,987 2.11×
    expmath
    		 2,346 8,117 3.46×
    fma
    		 920,254 3,004,735 3.27×
    fp
    		 251.87 775.95 3.08×
    fractal
    		 7.4 25.2 3.41×
    hyperbolic
    		 3,818 11,310 2.96×
    logmath
    		 4,545 12,976 2.86×
    matrix
    		 4,933 11,424 2.32×
    matrix-3d
    		 157.22 690.52 4.39×
    monte-carlo
    		 182.34 600.7 3.29×
    mpfr
    		 1,681 4,338 2.58×
    powmath
    		 1,304 4,271 3.28×
    trig
    		 1,872 5,675 3.03×
    veccmp
    		 19,001 49,401 2.60×
    vecfp
    		 1,814 5,514 3.04×
    vecmath
    		 4,031 12,951 3.21×
    vecshuf
    		 638.24 1,563 2.45×
    vecwide
    		 28,584 76,159 2.66×
    AlgorithmsSingleMultiScaling
    bitonicsort
    		 10.4 23.8 2.29×
    bsearch
    		 308.02 846 2.75×
    bubblesort
    		 0.8 2.8 3.50×
    fibsearch
    		 379.11 894.34 2.36×
    heapsort
    		 10.8 29.6 2.74×
    hsearch
    		 11,310 24,852 2.20×
    insertionsort
    		 13 26.4 2.03×
    malloc
    		 3,729,557 13,631,936 3.66×
    mcontend
    		 271.93 757.32 2.78×
    mergesort
    		 34.6 100.4 2.90×
    qsort
    		 21.8 60.8 2.79×
    skiplist
    		 7,094 22,598 3.19×
    tree
    		 2 6.4 3.20×
    MemorySingleMultiScaling
    cache
    		 893,367 1,338,674 1.50×
    cachehammer
    		 267,661 984,849 3.68×
    cacheline
    		 53.95 203.96 3.78×
    l1cache
    		 267.67 597.93 2.23×
    memcpy
    		 447.17 916.37 2.05×
    memrate
    		 3.54 4.71 1.33×
    memthrash
    		 95.4 215.51 2.26×
    ptr-chase
    		 57,451,063 53,526,677 0.93×
    spinmem
    		 333.58 218.79 0.66×
    stream
    		 127.49 754.09 5.91×
    vm
    		 200,024 277,862 1.39×

    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
    L2aos_v4 216 GiB0
    L8aos_v4 864 GiB0
    L12aos_v4 1296 GiB0
    L16aos_v4 16128 GiB0
    L24aos_v4 24192 GiB0
    L32aos_v4 32256 GiB0

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