b3-16-flex by OVHcloud

b3-16-flex is a General Purpose (4 vCPUs, 16 GiB RAM, 50 GB NVMe) server offered by OVHcloud with 4 vCPUs, 16 GiB of memory and 50 GB of storage. The pricing starts at 0.1227 USD per hour.
4 vCPU
16 GiB Memory
50 GB Storage
Spare SCore
12,239
(All-cores)
3,074
(Single-core)

Specifications

Server Metadata

Vendor ID
ovh
Name
b3-16-flex
Description
General Purpose (4 vCPUs, 16 GiB RAM, 50 GB NVMe)
Family
General Purpose
Hw Virt
Average Time To Start
38
Status
active
Observed At
2026-11-10T05:14:59.055697

Availability

REGION / IDSPOTONDEMAND
AP-SOUTHEAST-SYD-2 (AU) / AP-SOUTHEAST-SYD-2
- 0.1227 USD/h
AP-SOUTH-MUM-1 (IN) / AP-SOUTH-MUM-1
- 0.1227 USD/h
BHS5 (CA) / BHS5
- 0.1227 USD/h
DE1 (DE) / DE1
- 0.1227 USD/h
EU-SOUTH-MIL (IT) / EU-SOUTH-MIL
- 0.1227 USD/h
EU-WEST-PAR (FR) / EU-WEST-PAR
- 0.1227 USD/h
GRA11 (FR) / GRA11
- 0.1227 USD/h
GRA7 (FR) / GRA7
- 0.1227 USD/h
GRA9 (FR) / GRA9
- 0.1227 USD/h
RBX-A (FR) / RBX-A
- 0.1227 USD/h
SBG5 (FR) / SBG5
- 0.1227 USD/h
SBG7 (FR) / SBG7
- 0.1227 USD/h
SGP1 (SG) / SGP1
- 0.1227 USD/h
SYD1 (AU) / SYD1
- 0.1227 USD/h
UK1 (GB) / UK1
- 0.1227 USD/h
WAW1 (PL) / WAW1
- 0.1227 USD/h

Processor

vCPUs
4
Hypervisor
KVM
CPU Allocation
Dedicated
CPU Cores
4
CPU Speed
2.3 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU L1D Cache
32 KiB
CPU L1D Cache Total
128 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
128 KiB
CPU L2 Cache
512 KiB
CPU L2 Cache Total
2 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, syscall, nx, mmxext, fxsr_opt, pdpe1gb, rdtscp, lm, rep_good, nopl, cpuid, extd_apicid, tsc_known_freq, pni, pclmulqdq, ssse3, fma, cx16, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, svm, cr8_legacy, abm, sse4a, misalignsse, 3dnowprefetch, osvw, topoext, perfctr_core, ssbd, ibrs, ibpb, stibp, vmmcall, fsgsbase, bmi1, avx2, smep, bmi2, erms, invpcid, rdseed, adx, smap, clflushopt, clwb, sha_ni, xsaveopt, xsavec, xgetbv1, xsaves, clzero, xsaveerptr, wbnoinvd, arat, npt, nrip_save, umip, pku, ospke, rdpid, fsrm
Ecpus
4
Scalability
100

System Resources and Accelerators

MEMORY
Memory Amount
16 GiB
Memory Amount Actual
16 GiB
ACCELERATORS
Accelerator Count
0
Accelerator Memory Min
0 MiB
Accelerator Memory Total
0 MiB
Accelerators
    STORAGE
    Storage Size
    50 GB
    Storage Type
    nvme ssd
    Storages
    • 50 GB nvme ssd
    NETWORK
    Network Speed Baseline
    1 Gbps
    Network Speed Max
    4 Gbps
    Inbound Traffic
    0 GB/month
    Outbound Traffic
    0 GB/month
    IPv4
    0

    CPU and System Topology

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    0.49Score
    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) 507,014 ops/sec 1,921,522 ops/sec 0.27 50.00% 50.00% -48.00%
    Redis RPS (pipeline=16, SET) 4,581,566 ops/sec 11,803,344 ops/sec 0.38 20.00% 20.00% -18.00%
    PassMark Memory Mark (composite) 2,508 2,406 1 10.00% 10.00% 0.00%
    Memory bandwidth (read, 16 MB ~ L3) 327,436 MB/sec 108,665 MB/sec 3 10.00% 10.00% +12.00%
    PassMark single-thread CPU 2,923 Mops/s 2,365 Mops/s 1.2 10.00% 10.00% +1.80%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 1,838

    Geekbench Multi-Core

    Score: 5,965

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 10,600
    Compression
    		 103,937
    Encryption
    		 5,168
    Extended Instructions
    		 9,629
    Floating Point Maths
    		 21,977
    Integer Maths
    		 24,002
    Physics
    		 1,397
    Prime Numbers
    		 76
    Single Threaded
    		 2,923
    String Sorting
    		 15,295

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 2,508
    Database Operations
    		 4,106
    Memory Latency
    		 69
    Memory Read Cached
    		 27,482
    Memory Read Uncached
    		 25,915
    Memory Write
    		 23,644

    Stress-ng Stressors

    CPU integerSingleMultiScaling
    atomic
    		 674.29 709.53 1.05×
    bitops
    		 160,177 633,168 3.95×
    branch
    		 212,742 840,018 3.95×
    funccall
    		 618.85 2,438 3.94×
    funcret
    		 20,921 84,378 4.03×
    hash
    		 162,301 646,604 3.98×
    intmath
    		 66,716 263,803 3.95×
    nop
    		 625,789 2,463,946 3.94×
    prime
    		 491,148 1,941,697 3.95×
    rotate
    		 87,952 344,939 3.92×
    str
    		 1,076,699 3,941,117 3.66×
    wcs
    		 691,490 2,726,422 3.94×
    CryptographySingleMultiScaling
    crypt
    		 3,741 14,586 3.90×
    CompressionSingleMultiScaling
    jpeg
    		 833.3 3,280 3.94×
    zlib
    		 71.17 216.79 3.05×
    HypervisorSingleMultiScaling
    clock
    		 20,886 67,056 3.21×
    clone
    		 265.32 518.71 1.96×
    context
    		 2,853 11,277 3.95×
    cpu-sched
    		 60.75 264.41 4.35×
    eventfd
    		 47,309 284,268 6.01×
    fault
    		 10,499 37,475 3.57×
    fork
    		 3,826 15,442 4.04×
    getrandom
    		 50,501 199,505 3.95×
    hrtimers
    		 125,855 386,315 3.07×
    mprotect
    		 624,206 856,452 1.37×
    mtx
    		 40,819,816 417,218,937 10.22×
    munmap
    		 2,669 10,690 4.00×
    null
    		 333,465 1,336,764 4.01×
    pipe
    		 370,998 1,827,580 4.93×
    priv-instr
    		 419,275 1,597,748 3.81×
    resched
    		 1,147,906 624,161 0.54×
    switch
    		 89,403 826,770 9.25×
    timermix
    		 150,785 612,996 4.07×
    tlb-shootdown
    		 14,402 24,226 1.68×
    tsc
    		 782,832 3,108,948 3.97×
    usersyscall
    		 320,506 1,252,564 3.91×
    vdso
    		 82,143,031 325,824,792 3.97×
    vfork
    		 25,510 87,957 3.45×
    x86syscall
    		 3,823,102 15,161,987 3.97×
    yield
    		 2,513,550 2,482,988 0.99×
    zero
    		 2,669,473 10,591,925 3.97×
    CPU float/SIMDSingleMultiScaling
    eigen
    		 16,501 64,873 3.93×
    expmath
    		 2,675 10,685 3.99×
    fma
    		 918,495 3,641,937 3.97×
    fp
    		 251.27 995.98 3.96×
    fractal
    		 7.4 29.2 3.95×
    hyperbolic
    		 3,827 14,917 3.90×
    logmath
    		 4,555 17,923 3.94×
    matrix
    		 4,980 19,837 3.98×
    matrix-3d
    		 944.3 3,709 3.93×
    monte-carlo
    		 161.52 645.22 3.99×
    mpfr
    		 1,684 6,706 3.98×
    powmath
    		 1,348 5,358 3.98×
    trig
    		 1,864 7,401 3.97×
    veccmp
    		 19,028 76,027 4.00×
    vecfp
    		 1,805 7,192 3.98×
    vecmath
    		 4,045 16,064 3.97×
    vecshuf
    		 634.93 2,509 3.95×
    vecwide
    		 28,252 112,710 3.99×
    AlgorithmsSingleMultiScaling
    bitonicsort
    		 10.4 41.6 4.00×
    bsearch
    		 303.04 1,217 4.02×
    bubblesort
    		 1 4 4.00×
    fibsearch
    		 380.09 1,508 3.97×
    heapsort
    		 10.8 43.2 4.00×
    hsearch
    		 11,342 44,781 3.95×
    insertionsort
    		 13 51.6 3.97×
    malloc
    		 3,671,699 14,991,476 4.08×
    mcontend
    		 127.4 648.7 5.09×
    mergesort
    		 33.6 135.19 4.02×
    qsort
    		 22 87 3.95×
    skiplist
    		 6,997 27,838 3.98×
    tree
    		 2 8 4.00×
    MemorySingleMultiScaling
    cache
    		 760,204 979,556 1.29×
    cachehammer
    		 302,913 1,114,021 3.68×
    cacheline
    		 45.05 188.55 4.19×
    l1cache
    		 244.32 1,026 4.20×
    memcpy
    		 445.81 1,769 3.97×
    memrate
    		 3.53 8.19 2.32×
    memthrash
    		 52.45 249.47 4.76×
    ptr-chase
    		 39,249,116 147,335,812 3.75×
    spinmem
    		 208.39 2.8 0.01×
    stream
    		 121.68 1,420 11.67×
    vm
    		 89,780 291,028 3.24×

    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

    PostgreSQL heavy read-only throughput

    Alternatives

    Servers of the Same Family

    INSTANCEvCPUsMEMORYAccelerators
    b2-7 27 GiB0
    b3-8 28 GiB0
    b2-15 415 GiB0
    b2-15-flex 415 GiB0
    b3-16 416 GiB0
    b2-30 830 GiB0
    b2-30-flex 830 GiB0

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    b3-16-flex FAQs