B8ms by Microsoft Azure

B8ms is a BS family [Memory Intensive] [Premium Storage capable] [Intel processor] 8 vCPUs server offered by Microsoft Azure with 8 vCPUs, 32 GiB of memory and 66 GB of storage. The pricing starts at 0.333 USD per hour.
8 vCPU
32 GiB Memory
66 GB Storage
Spare SCore
9,945
(All-cores)
1,247
(Single-core)

Specifications

Server Metadata

Vendor ID
azure
Server ID
Standard_B8ms
Name
B8ms
API Reference
Standard_B8ms
Description
BS family [Memory Intensive] [Premium Storage capable] [Intel processor] 8 vCPUs
Family
BS
Hw Virt
Average Time To Start
29
Status
planned-for-retirement
Observed At
2026-10-25T13:14:46.895404

Availability

REGION / IDSPOTONDEMAND
East US (US) / eastus
- 0.333 USD/h
East US 2 (US) / eastus2
- 0.333 USD/h
North Central US (US) / northcentralus
- 0.333 USD/h
West US 2 (US) / westus2
- 0.333 USD/h
West US 3 (US) / westus3
- 0.333 USD/h
Sweden Central (SE) / swedencentral
- 0.346 USD/h
Central India (IN) / centralindia
- 0.358 USD/h
Jio India Central (IN) / jioindiacentral
- 0.358 USD/h
Jio India West (IN) / jioindiawest
- 0.358 USD/h
North Europe (IE) / northeurope
- 0.364 USD/h
Mexico Central (ZA) / mexicocentral
- 0.366 USD/h
Spain Central (ES) / spaincentral
- 0.366 USD/h
Canada Central (CA) / canadacentral
- 0.371 USD/h
Canada East (CA) / canadaeast
- 0.371 USD/h
UK West (GB) / ukwest
- 0.376 USD/h
France Central (FR) / francecentral
- 0.378 USD/h
UK South (GB) / uksouth
- 0.378 USD/h
Indonesia Central (ID) / indonesiacentral
- 0.38 USD/h
Malaysia West (MY) / malaysiawest
- 0.38 USD/h
Austria East (AT) / austriaeast
- 0.384 USD/h
Belgium Central (BE) / belgiumcentral
- 0.384 USD/h
Germany West Central (DE) / germanywestcentral
- 0.384 USD/h
Israel Central (IL) / israelcentral
- 0.384 USD/h
Italy North (IT) / italynorth
- 0.384 USD/h
Poland Central (PL) / polandcentral
- 0.384 USD/h
West Europe (NL) / westeurope
- 0.384 USD/h
West US (US) / westus
- 0.397 USD/h
Central US (US) / centralus
- 0.399 USD/h
South Central US (US) / southcentralus
- 0.399 USD/h
UAE North (AE) / uaenorth
- 0.399 USD/h
West Central US (US) / westcentralus
- 0.399 USD/h
Qatar Central (QA) / qatarcentral
- 0.401 USD/h
Korea South (KR) / koreasouth
- 0.415 USD/h
Korea Central (KR) / koreacentral
- 0.416 USD/h
Australia Central (AU) / australiacentral
- 0.422 USD/h
Australia Central 2 (AU) / australiacentral2
- 0.422 USD/h
Australia East (AU) / australiaeast
- 0.422 USD/h
Norway East (NO) / norwayeast
- 0.422 USD/h
Southeast Asia (SG) / southeastasia
- 0.422 USD/h
Switzerland North (CH) / switzerlandnorth
- 0.4224 USD/h
Australia Southeast (AU) / australiasoutheast
- 0.423 USD/h
South Africa North (ZA) / southafricanorth
- 0.434 USD/h
Japan East (JP) / japaneast
- 0.435 USD/h
New Zealand North (NZ) / newzealandnorth
- 0.444 USD/h
Chile Central (CL) / chilecentral
- 0.466 USD/h
East Asia (HK) / eastasia
- 0.467 USD/h
South India (IN) / southindia
- 0.471 USD/h
West India (IN) / westindia
- 0.476 USD/h
Japan West (JP) / japanwest
- 0.479 USD/h
Germany North (DE) / germanynorth
- 0.499 USD/h
UAE Central (AE) / uaecentral
- 0.499 USD/h
Brazil South (BR) / brazilsouth
- 0.538 USD/h
France South (FR) / francesouth
- 0.541 USD/h
South Africa West (ZA) / southafricawest
- 0.5424 USD/h
Switzerland West (CH) / switzerlandwest
- 0.5488 USD/h
Norway West (NO) / norwaywest
- 0.549 USD/h
Brazil Southeast (US) / brazilsoutheast
- 0.699 USD/h

Processor

vCPUs
8
Hypervisor
Microsoft Hyper-V
CPU Allocation
Burstable
CPU Cores
8
CPU Speed
2.6 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
8272CL
CPU L1D Cache
48 KiB
CPU L1D Cache Total
384 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
256 KiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
10 MiB
CPU L3 Cache
48 MiB
CPU L3 Cache Total
48 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, ss, ht, syscall, nx, pdpe1gb, rdtscp, lm, constant_tsc, rep_good, nopl, xtopology, cpuid, pni, pclmulqdq, ssse3, fma, cx16, pcid, sse4_1, sse4_2, movbe, popcnt, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, abm, 3dnowprefetch, pti, fsgsbase, bmi1, hle, avx2, smep, bmi2, erms, invpcid, rtm, avx512f, avx512dq, rdseed, adx, smap, clflushopt, avx512cd, avx512bw, avx512vl, xsaveopt, xsavec, xsaves, md_clear
Ecpus
8
Scalability
100

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
    66 GB
    Storage Type
    ssd
    Storages
    • 66 GB ssd (temp disk)
    NETWORK
    Inbound Traffic
    0 GB/month
    Outbound Traffic
    0 GB/month
    IPv4
    0

    CPU and System Topology

    Server Description

    A burstable virtual machine with balanced memory and multi-core capabilities designed for cost-effective handling of variable workloads.

    Burstable & BudgetGeneral Purpose

    Microsoft Azure B8ms is a burstable x86_64 virtual machine from the BS family, featuring 8 vCPUs and 8 physical cores powered by an Intel Xeon 8272CL processor at 2.6 GHz. It is equipped with 32.0 GB of RAM, 66 GB of local storage, and supports Premium Storage. Operating under a burstable CPU allocation model, the server is designed for workloads with variable CPU demands. Benchmark results show average multi-core performance, with a Geekbench multi-core score of 5800.0 and a Passmark CPU score of 11061.62, though single-core performance remains weak. This configuration is qualitatively cost-effective for non-continuous workloads, making it suitable for database operations, static web serving, and software compilation.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    0.6Score
    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) 1,041,870 ops/sec 1,919,289 ops/sec 0.53 50.00% 50.00% -27.00%
    Redis RPS (pipeline=16, SET) 6,628,712 ops/sec 11,728,058 ops/sec 0.55 20.00% 20.00% -11.00%
    PassMark Memory Mark (composite) 2,503 2,416 1 10.00% 10.00% 0.00%
    Memory bandwidth (read, 16 MB ~ L3) 68,856 MB/sec 108,466 MB/sec 0.63 10.00% 10.00% -4.50%
    PassMark single-thread CPU 1,799 Mops/s 2,365 Mops/s 0.75 10.00% 10.00% -2.80%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 1,060

    Geekbench Multi-Core

    Score: 5,800

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 11,062
    Compression
    		 145,522
    Encryption
    		 3,701
    Extended Instructions
    		 12,239
    Floating Point Maths
    		 23,732
    Integer Maths
    		 28,746
    Physics
    		 1,306
    Prime Numbers
    		 87
    Single Threaded
    		 1,799
    String Sorting
    		 17,444

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 2,503
    Database Operations
    		 5,326
    Memory Latency
    		 49
    Memory Read Cached
    		 21,761
    Memory Read Uncached
    		 11,483
    Memory Write
    		 9,370

    Stress-ng Stressors

    CPU integerSingleMultiScaling
    atomic
    		 189.08 193.19 1.02×
    bitops
    		 93,222 745,239 7.99×
    branch
    		 98,225 783,478 7.98×
    funccall
    		 454.4 3,620 7.97×
    funcret
    		 8,540 66,445 7.78×
    hash
    		 108,779 860,780 7.91×
    intmath
    		 43,667 347,697 7.96×
    nop
    		 134,208 1,068,805 7.96×
    prime
    		 287,354 2,285,877 7.95×
    rotate
    		 69,920 556,932 7.97×
    str
    		 619,528 5,134,303 8.29×
    wcs
    		 432,696 3,551,216 8.21×
    CryptographySingleMultiScaling
    crypt
    		 2,034 16,202 7.97×
    CompressionSingleMultiScaling
    jpeg
    		 495.75 3,925 7.92×
    zlib
    		 47.61 317.11 6.66×
    HypervisorSingleMultiScaling
    clock
    		 17,712 116,887 6.60×
    clone
    		 1,197 5,939 4.96×
    context
    		 1,494 11,904 7.97×
    cpu-sched
    		 54.91 519.4 9.46×
    eventfd
    		 32,510 621,060 19.10×
    fault
    		 9,695 67,172 6.93×
    fork
    		 3,882 22,086 5.69×
    getrandom
    		 34,418 273,964 7.96×
    hrtimers
    		 145,484 1,053,054 7.24×
    mprotect
    		 1,053,968 1,571,654 1.49×
    mtx
    		 8,269,492 230,821,680 27.91×
    munmap
    		 2,695 18,467 6.85×
    null
    		 160,409 1,281,930 7.99×
    pipe
    		 834,321 3,755,059 4.50×
    priv-instr
    		 346,189 2,680,383 7.74×
    resched
    		 2,029,837 924,594 0.46×
    switch
    		 123,274 1,810,081 14.68×
    timermix
    		 157,946 1,258,698 7.97×
    tlb-shootdown
    		 9,421 20,532 2.18×
    tsc
    		 641,217 5,103,190 7.96×
    usersyscall
    		 240,789 1,896,193 7.87×
    vdso
    		 65,723,028 518,848,600 7.89×
    vfork
    		 22,374 147,844 6.61×
    x86syscall
    		 1,807,259 14,428,720 7.98×
    yield
    		 4,723,591 5,082,242 1.08×
    zero
    		 1,372,436 10,845,488 7.90×
    CPU float/SIMDSingleMultiScaling
    eigen
    		 10,607 84,343 7.95×
    expmath
    		 2,068 16,495 7.98×
    fma
    		 486,117 3,867,762 7.96×
    fp
    		 140.67 1,037 7.37×
    fractal
    		 3.6 28 7.78×
    hyperbolic
    		 2,207 17,561 7.96×
    logmath
    		 3,466 27,438 7.92×
    matrix
    		 2,725 21,617 7.93×
    matrix-3d
    		 620.65 3,072 4.95×
    monte-carlo
    		 85.38 682.87 8.00×
    mpfr
    		 1,008 8,029 7.97×
    powmath
    		 1,208 9,628 7.97×
    trig
    		 1,414 11,272 7.97×
    veccmp
    		 14,875 118,312 7.95×
    vecfp
    		 1,093 8,696 7.95×
    vecmath
    		 2,351 18,709 7.96×
    vecshuf
    		 476.15 3,789 7.96×
    vecwide
    		 22,841 181,657 7.95×
    AlgorithmsSingleMultiScaling
    bitonicsort
    		 5.8 46.2 7.97×
    bsearch
    		 176.56 1,414 8.01×
    bubblesort
    		 0.6 4.8 8.00×
    fibsearch
    		 207.36 1,654 7.98×
    heapsort
    		 6.6 52.8 8.00×
    hsearch
    		 5,256 40,739 7.75×
    insertionsort
    		 7.4 59.2 8.00×
    malloc
    		 1,937,892 14,868,229 7.67×
    mcontend
    		 105.5 1,266 12.00×
    mergesort
    		 19.2 153.4 7.99×
    qsort
    		 14.8 118 7.97×
    skiplist
    		 3,881 30,897 7.96×
    tree
    		 1.2 8.8 7.33×
    MemorySingleMultiScaling
    cache
    		 300,884 499,044 1.66×
    cachehammer
    		 338,282 2,733,041 8.08×
    cacheline
    		 42.81 383.91 8.97×
    l1cache
    		 647.21 5,210 8.05×
    memcpy
    		 291.59 2,325 7.97×
    memrate
    		 1.56 8.77 5.62×
    memthrash
    		 113.3 354.07 3.13×
    ptr-chase
    		 20,569,387 101,503,428 4.93×
    spinmem
    		 307.18 573.55 1.87×
    stream
    		 38.43 1,742 45.34×
    vm
    		 58,557 292,049 4.99×

    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

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    B8ms FAQs