r3-512-flex by OVHcloud

r3-512-flex is a Memory Optimized (64 vCPUs, 512 GiB RAM, 50 GB NVMe) server offered by OVHcloud with 64 vCPUs, 512 GiB of memory and 50 GB of storage. The pricing starts at 2.3788 USD per hour.
64 vCPU
512 GiB Memory
50 GB Storage
Spare SCore
194,787
(All-cores)
3,078
(Single-core)

Specifications

Server Metadata

Vendor ID
ovh
Name
r3-512-flex
Description
Memory Optimized (64 vCPUs, 512 GiB RAM, 50 GB NVMe)
Family
Memory Optimized
Hw Virt
Average Time To Start
49
Status
active
Observed At
2026-11-10T08:53:09.235895

Availability

REGION / IDSPOTONDEMAND
AP-SOUTHEAST-SYD-2 (AU) / AP-SOUTHEAST-SYD-2
- 2.3788 USD/h
AP-SOUTH-MUM-1 (IN) / AP-SOUTH-MUM-1
- 2.3788 USD/h
BHS5 (CA) / BHS5
- 2.3788 USD/h
DE1 (DE) / DE1
- 2.3788 USD/h
EU-SOUTH-MIL (IT) / EU-SOUTH-MIL
- 2.3788 USD/h
EU-WEST-PAR (FR) / EU-WEST-PAR
- 2.3788 USD/h
GRA11 (FR) / GRA11
- 2.3788 USD/h
GRA7 (FR) / GRA7
- 2.3788 USD/h
GRA9 (FR) / GRA9
- 2.3788 USD/h
RBX-A (FR) / RBX-A
- 2.3788 USD/h
SBG5 (FR) / SBG5
- 2.3788 USD/h
SBG7 (FR) / SBG7
- 2.3788 USD/h
SGP1 (SG) / SGP1
- 2.3788 USD/h
SYD1 (AU) / SYD1
- 2.3788 USD/h
UK1 (GB) / UK1
- 2.3788 USD/h
WAW1 (PL) / WAW1
- 2.3788 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
512 GiB
Memory Amount Actual
500 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

    3.8Score
    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) 6,837,033 ops/sec 1,921,522 ops/sec 3.6 50.00% 62.00% +120.00%
    Redis RPS (pipeline=16, SET) 61,632,907 ops/sec 11,803,344 ops/sec 5.2 20.00% 25.00% +51.00%
    PassMark Memory Mark (composite) — 2,406 — 10.00% 0.00% —
    Memory bandwidth (read, 16 MB ~ L3) 271,307 MB/sec 108,665 MB/sec 2.5 10.00% 13.00% +13.00%
    PassMark single-thread CPU — 2,365 Mops/s — 10.00% 0.00% —

    Memory Bandwidth

    Compression

    OpenSSL

    Stress-ng Stressors

    CPU integerSingleMultiScaling
    atomic
    		 905.29 327.7 0.36×
    bitops
    		 160,057 9,764,728 61.01×
    branch
    		 213,038 11,487,932 53.92×
    funccall
    		 620.04 37,551 60.56×
    funcret
    		 21,356 1,186,453 55.56×
    hash
    		 163,455 10,404,946 63.66×
    intmath
    		 66,737 4,224,939 63.31×
    nop
    		 626,218 39,323,375 62.80×
    prime
    		 490,969 28,246,246 57.53×
    rotate
    		 88,179 5,585,859 63.35×
    str
    		 1,020,538 56,889,334 55.74×
    wcs
    		 674,834 33,799,389 50.09×
    CryptographySingleMultiScaling
    crypt
    		 3,748 213,762 57.04×
    CompressionSingleMultiScaling
    jpeg
    		 898.26 49,035 54.59×
    zlib
    		 58.44 3,613 61.82×
    HypervisorSingleMultiScaling
    clock
    		 19,028 220,364 11.58×
    clone
    		 288.76 4,967 17.20×
    context
    		 2,837 181,250 63.89×
    cpu-sched
    		 59.6 4,121 69.15×
    eventfd
    		 46,883 1,893,975 40.40×
    fault
    		 10,491 170,194 16.22×
    fork
    		 3,244 81,198 25.03×
    getrandom
    		 50,644 2,994,434 59.13×
    hrtimers
    		 182,765 4,772,662 26.11×
    mprotect
    		 612,027 12,385,694 20.24×
    mtx
    		 46,511,935 6,000,369,264 129.01×
    munmap
    		 2,320 75,663 32.61×
    null
    		 337,241 21,457,365 63.63×
    pipe
    		 381,085 15,627,385 41.01×
    priv-instr
    		 420,748 14,213,501 33.78×
    resched
    		 6,771,692 10,933,860 1.61×
    switch
    		 116,508 7,885,977 67.69×
    timermix
    		 157,769 9,378,942 59.45×
    tlb-shootdown
    		 15,793 226,454 14.34×
    tsc
    		 783,097 49,522,175 63.24×
    usersyscall
    		 323,282 12,834,493 39.70×
    vdso
    		 82,365,498 5,170,975,314 62.78×
    vfork
    		 21,229 135,998 6.41×
    x86syscall
    		 3,827,616 242,997,606 63.49×
    yield
    		 39,445,862 48,305,631 1.22×
    zero
    		 2,671,743 164,593,156 61.61×
    CPU float/SIMDSingleMultiScaling
    eigen
    		 15,803 975,030 61.70×
    expmath
    		 2,869 175,947 61.32×
    fma
    		 920,739 53,604,528 58.22×
    fp
    		 252 15,532 61.64×
    fractal
    		 7.4 418.17 56.51×
    hyperbolic
    		 3,822 236,151 61.79×
    logmath
    		 4,575 274,389 59.97×
    matrix
    		 4,918 266,040 54.09×
    matrix-3d
    		 943.42 7,643 8.10×
    monte-carlo
    		 161.57 10,288 63.68×
    mpfr
    		 1,705 98,435 57.73×
    powmath
    		 1,344 84,879 63.14×
    trig
    		 1,868 110,218 59.01×
    veccmp
    		 19,186 1,096,168 57.13×
    vecfp
    		 1,813 103,681 57.17×
    vecmath
    		 4,020 246,853 61.41×
    vecshuf
    		 637.76 38,735 60.74×
    vecwide
    		 28,626 1,452,364 50.74×
    AlgorithmsSingleMultiScaling
    bitonicsort
    		 10.4 613.78 59.02×
    bsearch
    		 306.67 17,551 57.23×
    bubblesort
    		 0.8 51.2 64.00×
    fibsearch
    		 380.11 23,796 62.60×
    heapsort
    		 10.8 617.18 57.15×
    hsearch
    		 11,526 621,596 53.93×
    insertionsort
    		 13 679.99 52.31×
    malloc
    		 3,550,404 119,714,023 33.72×
    mcontend
    		 81.04 9,906 122.24×
    mergesort
    		 34.4 1,919 55.78×
    qsort
    		 22 1,211 55.03×
    skiplist
    		 7,022 411,540 58.61×
    tree
    		 2 103.1 51.55×
    MemorySingleMultiScaling
    cache
    		 740,544 1,233,965 1.67×
    cachehammer
    		 275,280 13,401,836 48.68×
    cacheline
    		 81.95 3,701 45.17×
    l1cache
    		 254.52 15,956 62.69×
    memcpy
    		 447.89 26,165 58.42×
    memrate
    		 3.52 19.41 5.51×
    memthrash
    		 220.14 1,133 5.15×
    ptr-chase
    		 36,452,129 632,507,438 17.35×
    spinmem
    		 210.19 2,995 14.25×
    stream
    		 122.78 34,258 279.02×
    vm
    		 83,584 300,888 3.60×

    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
    r2-15 215 GiB0
    r3-16 216 GiB0
    r2-30 230 GiB0
    r3-32 432 GiB0
    r3-32-flex 432 GiB0
    r2-60 460 GiB0
    r2-60-flex 460 GiB0

    Similar Servers

    INSTANCEVENDORvCPUsMEMORYAccelerators

    r3-512-flex FAQs