c3-320-flex by OVHcloud

c3-320-flex is a Compute Optimized (160 vCPUs, 320 GiB RAM, 50 GB NVMe) server offered by OVHcloud with 160 vCPUs, 320 GiB of memory and 50 GB of storage. The pricing starts at 4.0947 USD per hour.
160 vCPU
320 GiB Memory
50 GB Storage
Spare SCore
288,709
(All-cores)
3,076
(Single-core)

Specifications

Server Metadata

Vendor ID
ovh
Name
c3-320-flex
Description
Compute Optimized (160 vCPUs, 320 GiB RAM, 50 GB NVMe)
Family
Compute Optimized
Hw Virt
Average Time To Start
63
Status
active
Observed At
2026-11-10T01:50:44.127953

Availability

REGION / IDSPOTONDEMAND
AP-SOUTHEAST-SYD-2 (AU) / AP-SOUTHEAST-SYD-2
- 4.0947 USD/h
AP-SOUTH-MUM-1 (IN) / AP-SOUTH-MUM-1
- 4.0947 USD/h
BHS5 (CA) / BHS5
- 4.0947 USD/h
EU-SOUTH-MIL (IT) / EU-SOUTH-MIL
- 4.0947 USD/h
EU-WEST-PAR (FR) / EU-WEST-PAR
- 4.0947 USD/h
GRA11 (FR) / GRA11
- 4.0947 USD/h
GRA7 (FR) / GRA7
- 4.0947 USD/h
GRA9 (FR) / GRA9
- 4.0947 USD/h
RBX-A (FR) / RBX-A
- 4.0947 USD/h
SBG5 (FR) / SBG5
- 4.0947 USD/h
SBG7 (FR) / SBG7
- 4.0947 USD/h
SGP1 (SG) / SGP1
- 4.0947 USD/h
SYD1 (AU) / SYD1
- 4.0947 USD/h
UK1 (GB) / UK1
- 4.0947 USD/h
WAW1 (PL) / WAW1
- 4.0947 USD/h

Processor

vCPUs
160
Hypervisor
KVM
CPU Allocation
Dedicated
CPU Cores
160
CPU Speed
2.3 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU L1D Cache
32 KiB
CPU L1D Cache Total
5 MiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
5 MiB
CPU L2 Cache
512 KiB
CPU L2 Cache Total
80 MiB
CPU L3 Cache
32 MiB
CPU L3 Cache Total
5 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
93.9
Scalability
58.69

System Resources and Accelerators

MEMORY
Memory Amount
320 GiB
Memory Amount Actual
313 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
    20 Gbps
    Network Speed Max
    20 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

    5Score
    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) 10,183,378 ops/sec 1,922,940 ops/sec 5.3 50.00% 62.00% +180.00%
    Redis RPS (pipeline=16, SET) 90,784,916 ops/sec 11,797,257 ops/sec 7.6 20.00% 25.00% +66.00%
    PassMark Memory Mark (composite) — 2,406 — 10.00% 0.00% —
    Memory bandwidth (read, 16 MB ~ L3) 179,077 MB/sec 108,657 MB/sec 1.6 10.00% 13.00% +6.30%
    PassMark single-thread CPU — 2,365 Mops/s — 10.00% 0.00% —

    Memory Bandwidth

    Compression

    OpenSSL

    Stress-ng Stressors

    CPU integerSingleMultiScaling
    atomic
    		 910.38 198.8 0.22×
    bitops
    		 160,188 14,306,531 89.31×
    branch
    		 213,059 21,785,389 102.25×
    funccall
    		 619.07 59,866 96.70×
    funcret
    		 21,273 1,962,138 92.24×
    hash
    		 163,293 17,953,825 109.95×
    intmath
    		 66,301 7,398,040 111.58×
    nop
    		 625,802 59,239,936 94.66×
    prime
    		 495,418 43,170,668 87.14×
    rotate
    		 88,226 7,929,655 89.88×
    str
    		 1,084,673 81,076,777 74.75×
    wcs
    		 683,608 48,706,951 71.25×
    CryptographySingleMultiScaling
    crypt
    		 3,760 290,560 77.28×
    CompressionSingleMultiScaling
    jpeg
    		 814.15 47,945 58.89×
    zlib
    		 68.73 7,124 103.66×
    HypervisorSingleMultiScaling
    clock
    		 13,036 185,255 14.21×
    clone
    		 281.13 6,898 24.54×
    context
    		 1,756 204,011 116.21×
    cpu-sched
    		 58.93 10,143 172.13×
    eventfd
    		 44,521 3,124,306 70.18×
    fault
    		 10,123 137,271 13.56×
    fork
    		 2,759 62,601 22.69×
    getrandom
    		 48,933 4,459,255 91.13×
    hrtimers
    		 152,598 9,332,661 61.16×
    mprotect
    		 592,767 17,781,537 30.00×
    mtx
    		 29,113,289 7,406,568,107 254.41×
    munmap
    		 2,061 72,150 35.00×
    null
    		 190,166 21,039,619 110.64×
    pipe
    		 366,323 22,358,859 61.04×
    priv-instr
    		 334,050 18,375,603 55.01×
    resched
    		 5,887,500 16,004,595 2.72×
    switch
    		 107,729 9,408,603 87.34×
    timermix
    		 125,976 14,446,462 114.68×
    tlb-shootdown
    		 10,754 136,505 12.69×
    tsc
    		 782,406 115,912,846 148.15×
    usersyscall
    		 237,393 17,574,943 74.03×
    vdso
    		 82,294,580 9,165,892,903 111.38×
    vfork
    		 18,786 94,967 5.06×
    x86syscall
    		 2,137,526 238,782,020 111.71×
    yield
    		 59,276,685 70,931,509 1.20×
    zero
    		 1,692,518 183,682,535 108.53×
    CPU float/SIMDSingleMultiScaling
    eigen
    		 15,988 1,352,871 84.62×
    expmath
    		 2,849 303,534 106.53×
    fma
    		 920,115 89,585,547 97.36×
    fp
    		 251.41 26,684 106.14×
    fractal
    		 7.4 749.36 101.26×
    hyperbolic
    		 3,813 396,807 104.05×
    logmath
    		 4,560 454,221 99.61×
    matrix
    		 4,980 364,845 73.26×
    matrix-3d
    		 950.37 6,237 6.56×
    monte-carlo
    		 106.79 11,028 103.27×
    mpfr
    		 1,700 145,768 85.75×
    powmath
    		 1,329 148,827 112.00×
    trig
    		 1,873 183,675 98.09×
    veccmp
    		 19,122 1,606,409 84.01×
    vecfp
    		 1,812 169,088 93.34×
    vecmath
    		 4,025 427,089 106.11×
    vecshuf
    		 638.84 57,872 90.59×
    vecwide
    		 28,620 2,191,120 76.56×
    AlgorithmsSingleMultiScaling
    bitonicsort
    		 10.4 846.77 81.42×
    bsearch
    		 306.63 27,505 89.70×
    bubblesort
    		 0.8 71.2 89.00×
    fibsearch
    		 380.42 35,516 93.36×
    heapsort
    		 10.8 977.16 90.48×
    hsearch
    		 11,431 840,828 73.56×
    insertionsort
    		 13 841.99 64.77×
    malloc
    		 3,528,086 224,931,412 63.75×
    mcontend
    		 79.81 23,133 289.85×
    mergesort
    		 34.2 3,106 90.83×
    qsort
    		 22 1,899 86.30×
    skiplist
    		 6,975 731,795 104.91×
    tree
    		 2 130.66 65.33×
    MemorySingleMultiScaling
    cache
    		 746,039 1,748,734 2.34×
    cachehammer
    		 284,119 18,194,028 64.04×
    cacheline
    		 70.76 4,982 70.41×
    l1cache
    		 254.44 20,758 81.58×
    memcpy
    		 448.37 33,662 75.08×
    memrate
    		 3.51 29.19 8.32×
    memthrash
    		 374.45 130.49 0.35×
    ptr-chase
    		 40,485,220 971,384,100 23.99×
    spinmem
    		 177.59 5,559 31.30×
    stream
    		 123.01 95,984 780.30×
    vm
    		 68,097 385,767 5.66×

    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
    c3-4 24 GiB0
    c2-7 27 GiB0
    c3-8 48 GiB0
    c3-8-flex 48 GiB0
    c2-15 415 GiB0
    c2-15-flex 415 GiB0
    c3-16 816 GiB0

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    c3-320-flex FAQs