c3-320 by OVHcloud

c3-320 is a Compute Optimized (160 vCPUs, 320 GiB RAM, 400 GB NVMe) server offered by OVHcloud with 160 vCPUs, 320 GiB of memory and 400 GB of storage. The pricing starts at 4.0789 USD per hour.
160 vCPU
320 GiB Memory
400 GB Storage
Spare SCore
288,128
(All-cores)
3,076
(Single-core)

Specifications

Server Metadata

Vendor ID
ovh
Name
c3-320
Description
Compute Optimized (160 vCPUs, 320 GiB RAM, 400 GB NVMe)
Family
Compute Optimized
Hw Virt
Average Time To Start
62.5
Status
active
Observed At
2026-10-31T19:15:36.095620

Availability

REGION / IDSPOTONDEMAND
AP-SOUTHEAST-SYD-2 (AU) / AP-SOUTHEAST-SYD-2
- 4.0789 USD/h
AP-SOUTH-MUM-1 (IN) / AP-SOUTH-MUM-1
- 4.0789 USD/h
BHS5 (CA) / BHS5
- 4.0789 USD/h
DE1 (DE) / DE1
- 4.0789 USD/h
EU-SOUTH-MIL (IT) / EU-SOUTH-MIL
- 4.0789 USD/h
EU-WEST-PAR (FR) / EU-WEST-PAR
- 4.0789 USD/h
GRA11 (FR) / GRA11
- 4.0789 USD/h
GRA7 (FR) / GRA7
- 4.0789 USD/h
GRA9 (FR) / GRA9
- 4.0789 USD/h
RBX-A (FR) / RBX-A
- 4.0789 USD/h
SBG5 (FR) / SBG5
- 4.0789 USD/h
SBG7 (FR) / SBG7
- 4.0789 USD/h
SGP1 (SG) / SGP1
- 4.0789 USD/h
SYD1 (AU) / SYD1
- 4.0789 USD/h
UK1 (GB) / UK1
- 4.0789 USD/h
WAW1 (PL) / WAW1
- 4.0789 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
93.7
Scalability
58.56

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
    400 GB
    Storage Type
    nvme ssd
    Storages
    • 400 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
    1

    CPU and System Topology

    Server Description

    A high-density compute platform featuring one hundred sixty dedicated physical cores and local NVMe storage for parallelized enterprise workloads.

    Compute OptimizedStorage & Database

    OVHcloud c3-320 is a compute-optimized server featuring 160 dedicated physical AMD EPYC cores on the x86_64 architecture, running at 2.3 GHz with no hyperthreading. It is equipped with 320 GB of RAM, a 400 GB NVMe SSD, and a 20 Gbps baseline network interface. Benchmark results show top-tier multi-core CPU performance, software compilation speeds, and memory bandwidth, alongside strong static web serving and database capabilities. The dedicated core allocation and 2.0 GB of RAM per core profile deliver high compute density for parallel processing. This server is designed for demanding workloads such as software compilation, multi-threaded data decompression, ray tracing, and high-throughput database operations.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    4.1Score
    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) 10,934,408 ops/sec 1,918,343 ops/sec 5.8 50.00% 50.00% +140.00%
    Redis RPS (pipeline=16, SET) 95,546,643 ops/sec 11,704,734 ops/sec 8 20.00% 20.00% +52.00%
    PassMark Memory Mark (composite) 3,012 2,416 1.2 10.00% 10.00% +1.80%
    Memory bandwidth (read, 16 MB ~ L3) 266,682 MB/sec 108,466 MB/sec 2.5 10.00% 10.00% +9.60%
    PassMark single-thread CPU 2,926 Mops/s 2,365 Mops/s 1.2 10.00% 10.00% +1.80%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 1,917

    Geekbench Multi-Core

    Score: 20,370

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 116,051
    Compression
    		 2,456,876
    Encryption
    		 161,627
    Extended Instructions
    		 151,527
    Floating Point Maths
    		 456,008
    Integer Maths
    		 766,468
    Physics
    		 14,691
    Prime Numbers
    		 1,368
    Single Threaded
    		 2,926
    String Sorting
    		 325,871

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 3,012
    Database Operations
    		 31,082
    Memory Latency
    		 70
    Memory Read Cached
    		 27,328
    Memory Read Uncached
    		 26,139
    Memory Write
    		 22,879

    Stress-ng Stressors

    CPU integerSingleMultiScaling
    atomic
    		 920.61 197.73 0.21×
    bitops
    		 163,231 14,401,000 88.22×
    branch
    		 213,030 21,870,582 102.66×
    funccall
    		 619.58 60,012 96.86×
    funcret
    		 20,982 1,965,081 93.65×
    hash
    		 163,371 18,032,031 110.37×
    intmath
    		 66,662 7,466,403 112.00×
    nop
    		 627,565 59,478,404 94.78×
    prime
    		 492,249 43,058,987 87.47×
    rotate
    		 88,353 7,944,403 89.92×
    str
    		 1,087,540 81,436,212 74.88×
    wcs
    		 688,676 50,121,534 72.78×
    CryptographySingleMultiScaling
    crypt
    		 3,746 290,547 77.57×
    CompressionSingleMultiScaling
    jpeg
    		 905.19 32,865 36.31×
    zlib
    		 66.89 7,059 105.53×
    HypervisorSingleMultiScaling
    clock
    		 16,030 198,462 12.38×
    clone
    		 258.23 7,019 27.18×
    context
    		 2,910 375,471 129.02×
    cpu-sched
    		 59.31 10,166 171.40×
    eventfd
    		 36,557 3,197,400 87.46×
    fault
    		 10,607 128,933 12.16×
    fork
    		 2,967 65,005 21.91×
    getrandom
    		 52,505 4,850,546 92.38×
    hrtimers
    		 368,668 8,447,744 22.91×
    mprotect
    		 589,726 21,485,899 36.43×
    mtx
    		 60,955,875 7,390,940,037 121.25×
    munmap
    		 2,232 74,902 33.56×
    null
    		 351,806 43,202,420 122.80×
    pipe
    		 355,843 28,383,036 79.76×
    priv-instr
    		 430,855 19,976,356 46.36×
    resched
    		 6,802,234 20,225,570 2.97×
    switch
    		 91,568 5,267,546 57.53×
    timermix
    		 163,804 17,468,587 106.64×
    tlb-shootdown
    		 13,464 142,757 10.60×
    tsc
    		 783,484 116,373,573 148.53×
    usersyscall
    		 320,358 18,428,096 57.52×
    vdso
    		 83,938,597 9,725,139,266 115.86×
    vfork
    		 17,832 87,098 4.88×
    x86syscall
    		 3,962,401 500,535,898 126.32×
    yield
    		 77,314,380 96,056,659 1.24×
    zero
    		 2,751,341 325,144,774 118.18×
    CPU float/SIMDSingleMultiScaling
    eigen
    		 16,323 1,358,107 83.20×
    expmath
    		 3,022 319,423 105.71×
    fma
    		 920,596 90,317,048 98.11×
    fp
    		 251.99 26,665 105.82×
    fractal
    		 7.4 750.33 101.40×
    hyperbolic
    		 3,814 397,288 104.16×
    logmath
    		 4,568 456,493 99.94×
    matrix
    		 4,955 364,666 73.60×
    matrix-3d
    		 790.26 7,681 9.72×
    monte-carlo
    		 171.27 19,493 113.82×
    mpfr
    		 1,703 145,943 85.72×
    powmath
    		 1,337 149,470 111.77×
    trig
    		 1,874 184,134 98.26×
    veccmp
    		 19,025 1,609,286 84.59×
    vecfp
    		 1,815 170,357 93.87×
    vecmath
    		 4,046 427,287 105.62×
    vecshuf
    		 638.93 58,024 90.81×
    vecwide
    		 28,652 2,193,579 76.56×
    AlgorithmsSingleMultiScaling
    bitonicsort
    		 10.4 846.17 81.36×
    bsearch
    		 306.51 27,335 89.18×
    bubblesort
    		 0.8 72.2 90.25×
    fibsearch
    		 380.89 35,463 93.10×
    heapsort
    		 11 982.17 89.29×
    hsearch
    		 11,508 835,549 72.61×
    insertionsort
    		 13.2 845.99 64.09×
    malloc
    		 3,757,509 215,100,538 57.25×
    mcontend
    		 80.9 23,633 292.12×
    mergesort
    		 34 3,126 91.95×
    qsort
    		 22 1,897 86.21×
    skiplist
    		 7,035 732,944 104.19×
    tree
    		 2 131.73 65.86×
    MemorySingleMultiScaling
    cache
    		 755,166 1,736,171 2.30×
    cachehammer
    		 292,548 18,594,953 63.56×
    cacheline
    		 76.15 4,915 64.54×
    l1cache
    		 259.91 21,057 81.02×
    memcpy
    		 448.98 33,993 75.71×
    memrate
    		 3.54 28.27 7.99×
    memthrash
    		 400.13 111.04 0.28×
    ptr-chase
    		 41,401,325 1,038,207,131 25.08×
    spinmem
    		 221.79 7,252 32.70×
    stream
    		 120.71 119,486 989.86×
    vm
    		 88,093 445,257 5.05×

    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
    c2-15 415 GiB0
    c3-16 816 GiB0
    c2-30 830 GiB0
    c3-32 1632 GiB0

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    c3-320 FAQs