b3-256-flex by OVHcloud

b3-256-flex is a General Purpose (64 vCPUs, 256 GiB RAM, 50 GB NVMe) server offered by OVHcloud with 64 vCPUs, 256 GiB of memory and 50 GB of storage. The pricing starts at 1.8405 USD per hour.
64 vCPU
256 GiB Memory
50 GB Storage
Spare SCore
194,581
(All-cores)
3,073
(Single-core)

Specifications

Server Metadata

Vendor ID
ovh
Name
b3-256-flex
Description
General Purpose (64 vCPUs, 256 GiB RAM, 50 GB NVMe)
Family
General Purpose
Hw Virt
Average Time To Start
51
Status
active
Observed At
2026-11-10T08:53:09.236379

Availability

REGION / IDSPOTONDEMAND
AP-SOUTHEAST-SYD-2 (AU) / AP-SOUTHEAST-SYD-2
- 1.8405 USD/h
AP-SOUTH-MUM-1 (IN) / AP-SOUTH-MUM-1
- 1.8405 USD/h
BHS5 (CA) / BHS5
- 1.8405 USD/h
DE1 (DE) / DE1
- 1.8405 USD/h
EU-SOUTH-MIL (IT) / EU-SOUTH-MIL
- 1.8405 USD/h
EU-WEST-PAR (FR) / EU-WEST-PAR
- 1.8405 USD/h
GRA11 (FR) / GRA11
- 1.8405 USD/h
GRA7 (FR) / GRA7
- 1.8405 USD/h
GRA9 (FR) / GRA9
- 1.8405 USD/h
RBX-A (FR) / RBX-A
- 1.8405 USD/h
SBG5 (FR) / SBG5
- 1.8405 USD/h
SBG7 (FR) / SBG7
- 1.8405 USD/h
SGP1 (SG) / SGP1
- 1.8405 USD/h
SYD1 (AU) / SYD1
- 1.8405 USD/h
UK1 (GB) / UK1
- 1.8405 USD/h

Processor

vCPUs
64
Hypervisor
KVM
CPU Allocation
Dedicated
CPU Cores
64
CPU Speed
2.3 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU L1D Cache
32 KiB
CPU L1D Cache Total
2 MiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
2 MiB
CPU L2 Cache
512 KiB
CPU L2 Cache Total
32 MiB
CPU L3 Cache
32 MiB
CPU L3 Cache Total
2 GiB
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
63.3
Scalability
98.91

System Resources and Accelerators

MEMORY
Memory Amount
256 GiB
Memory Amount Actual
250 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
    16 Gbps
    Network Speed Max
    16 Gbps
    Inbound Traffic
    0 GB/month
    Outbound Traffic
    0 GB/month
    IPv4
    0

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    3.7Score
    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.Partial coverage: missing component benchmark(s): PassMark Memory Mark (composite), PassMark single-thread CPU.
    Component Score Weight Impact
    Raw Reference Normalized Target Actual
    Redis RPS (pipeline=1, SET) 6,364,495 ops/sec 1,921,522 ops/sec 3.4 50.00% 62.00% +110.00%
    Redis RPS (pipeline=16, SET) 60,941,340 ops/sec 11,803,344 ops/sec 5.1 20.00% 25.00% +50.00%
    PassMark Memory Mark (composite) — 2,406 — 10.00% 0.00% —
    Memory bandwidth (read, 16 MB ~ L3) 332,786 MB/sec 108,665 MB/sec 3 10.00% 13.00% +15.00%
    PassMark single-thread CPU — 2,365 Mops/s — 10.00% 0.00% —

    Memory Bandwidth

    Compression

    OpenSSL

    Stress-ng Stressors

    CPU integerSingleMultiScaling
    atomic
    		 933.02 321.65 0.34×
    bitops
    		 160,459 9,898,723 61.69×
    branch
    		 213,008 11,491,558 53.95×
    funccall
    		 619.07 37,798 61.06×
    funcret
    		 20,839 1,227,071 58.88×
    hash
    		 163,371 10,357,746 63.40×
    intmath
    		 66,463 4,218,308 63.47×
    nop
    		 625,433 39,159,226 62.61×
    prime
    		 493,947 28,494,265 57.69×
    rotate
    		 88,246 5,583,405 63.27×
    str
    		 1,008,203 58,314,340 57.84×
    wcs
    		 694,362 35,757,950 51.50×
    CryptographySingleMultiScaling
    crypt
    		 3,724 214,727 57.65×
    CompressionSingleMultiScaling
    jpeg
    		 885.64 49,035 55.37×
    zlib
    		 83.43 3,780 45.31×
    HypervisorSingleMultiScaling
    clock
    		 14,665 216,745 14.78×
    clone
    		 289.41 5,453 18.84×
    context
    		 1,755 111,644 63.60×
    cpu-sched
    		 61.94 4,123 66.57×
    eventfd
    		 42,556 1,729,200 40.63×
    fault
    		 10,067 171,271 17.01×
    fork
    		 2,984 78,978 26.47×
    getrandom
    		 48,039 2,958,435 61.58×
    hrtimers
    		 124,271 5,353,167 43.08×
    mprotect
    		 591,348 10,447,278 17.67×
    mtx
    		 35,218,314 6,102,835,445 173.29×
    munmap
    		 2,103 72,810 34.63×
    null
    		 190,036 12,067,287 63.50×
    pipe
    		 359,866 14,994,310 41.67×
    priv-instr
    		 333,955 12,802,042 38.33×
    resched
    		 5,818,569 8,980,183 1.54×
    switch
    		 107,240 7,255,215 67.65×
    timermix
    		 131,021 8,057,998 61.50×
    tlb-shootdown
    		 15,238 229,249 15.04×
    tsc
    		 782,053 49,474,966 63.26×
    usersyscall
    		 223,893 11,672,370 52.13×
    vdso
    		 82,247,175 5,200,867,986 63.23×
    vfork
    		 23,004 135,608 5.89×
    x86syscall
    		 2,148,625 136,172,678 63.38×
    yield
    		 32,338,468 38,268,145 1.18×
    zero
    		 1,685,565 107,774,135 63.94×
    CPU float/SIMDSingleMultiScaling
    eigen
    		 15,786 990,596 62.75×
    expmath
    		 2,925 181,079 61.90×
    fma
    		 917,251 54,666,258 59.60×
    fp
    		 251.41 15,620 62.13×
    fractal
    		 7.4 421.57 56.97×
    hyperbolic
    		 3,828 238,631 62.34×
    logmath
    		 4,539 277,705 61.19×
    matrix
    		 4,876 268,641 55.10×
    matrix-3d
    		 950.75 7,336 7.72×
    monte-carlo
    		 106.85 6,818 63.81×
    mpfr
    		 1,701 99,977 58.79×
    powmath
    		 1,361 85,991 63.20×
    trig
    		 1,871 109,871 58.73×
    veccmp
    		 19,053 1,104,470 57.97×
    vecfp
    		 1,810 104,169 57.54×
    vecmath
    		 4,010 249,839 62.31×
    vecshuf
    		 638.11 38,993 61.11×
    vecwide
    		 28,568 1,495,503 52.35×
    AlgorithmsSingleMultiScaling
    bitonicsort
    		 10.4 623.38 59.94×
    bsearch
    		 305.05 17,642 57.83×
    bubblesort
    		 0.8 51.2 64.00×
    fibsearch
    		 379.22 23,993 63.27×
    heapsort
    		 10.8 622.98 57.68×
    hsearch
    		 11,516 633,077 54.97×
    insertionsort
    		 13 685.99 52.77×
    malloc
    		 3,442,015 114,700,937 33.32×
    mcontend
    		 79.11 9,798 123.85×
    mergesort
    		 34 1,922 56.53×
    qsort
    		 22.2 1,220 54.94×
    skiplist
    		 7,030 416,310 59.22×
    tree
    		 2 107.45 53.73×
    MemorySingleMultiScaling
    cache
    		 733,152 1,247,103 1.70×
    cachehammer
    		 269,622 12,776,271 47.39×
    cacheline
    		 56.57 3,730 65.93×
    l1cache
    		 257.42 15,889 61.72×
    memcpy
    		 448.45 26,446 58.97×
    memrate
    		 3.71 20.62 5.56×
    memthrash
    		 198.92 1,127 5.66×
    ptr-chase
    		 37,780,467 647,536,048 17.14×
    spinmem
    		 175.39 2,655 15.14×
    stream
    		 126.93 45,602 359.27×
    vm
    		 59,158 300,739 5.08×

    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
    b3-16-flex 416 GiB0
    b2-30 830 GiB0

    Similar Servers

    INSTANCEVENDORvCPUsMEMORYAccelerators

    b3-256-flex FAQs