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b3-512 by OVHcloud

b3-512 is a General Purpose (128 vCPUs, 512 GiB RAM, 400 GB NVMe) server offered by OVHcloud with 128 vCPUs, 512 GiB of memory and 400 GB of storage. The pricing starts at 3.7572 USD per hour.
128 vCPU
512 GiB Memory
400 GB Storage
Spare SCore
287994
(All-cores)
3078
(Single-core)

Specifications

Server Metadata

Vendor ID
ovh
Name
b3-512
Description
General Purpose (128 vCPUs, 512 GiB RAM, 400 GB NVMe)
Family
General Purpose
Hw Virt
Status
active
Observed At
2026-07-30T18:22:30.995944

Availability

REGION / IDSPOTONDEMAND
AP-SOUTHEAST-SYD-2 (AU) / AP-SOUTHEAST-SYD-2
- 3.7572 USD/h
AP-SOUTH-MUM-1 (IN) / AP-SOUTH-MUM-1
- 3.7572 USD/h
BHS5 (CA) / BHS5
- 3.7572 USD/h
DE1 (DE) / DE1
- 3.7572 USD/h
EU-SOUTH-MIL (IT) / EU-SOUTH-MIL
- 3.7572 USD/h
EU-WEST-PAR (FR) / EU-WEST-PAR
- 3.7572 USD/h
GRA11 (FR) / GRA11
- 3.7572 USD/h
GRA7 (FR) / GRA7
- 3.7572 USD/h
GRA9 (FR) / GRA9
- 3.7572 USD/h
RBX-A (FR) / RBX-A
- 3.7572 USD/h
SBG5 (FR) / SBG5
- 3.7572 USD/h
SBG7 (FR) / SBG7
- 3.7572 USD/h
SGP1 (SG) / SGP1
- 3.7572 USD/h
SYD1 (AU) / SYD1
- 3.7572 USD/h
UK1 (GB) / UK1
- 3.7572 USD/h
WAW1 (PL) / WAW1
- 3.7572 USD/h

Processor

vCPUs
128
Hypervisor
KVM
CPU Allocation
Dedicated
CPU Cores
128
CPU Speed
2.3 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU L1D Cache
32 KiB
CPU L1D Cache Total
4 MiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
4 MiB
CPU L2 Cache
512 KiB
CPU L2 Cache Total
64 MiB
CPU L3 Cache
32 MiB
CPU L3 Cache Total
4 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
93.6
Scalability
73.12

System Resources and Accelerators

MEMORY
Memory Amount
512 GiB
Memory Amount Actual
500 GiB
GPU
GPU Count
0
GPU Memory Min
0 MiB
GPU Memory Total
0 MiB
GPUs
    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-core-density general-purpose server featuring dedicated AMD EPYC processors and NVMe storage for demanding parallel workloads.

    General PurposeCompute Optimized

    The OVHcloud b3-512 is a general-purpose server built on the x86_64 architecture, featuring 128 dedicated AMD EPYC physical cores running at 2.3 GHz. It is equipped with 512.0 GB of RAM, a 400 GB NVMe SSD, and 20 Gbps of baseline network bandwidth. The server delivers top-tier multi-core performance, as evidenced by outstanding results in multi-threaded decompression, software compilation, and memory bandwidth tests. While single-threaded performance and large-scale LLM text generation represent relative bottlenecks, its massive parallel processing capacity makes it highly cost-efficient for resource-dense environments. This server is optimized for multi-threaded data processing, large-scale database operations, static web serving, and software compilation.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    3.86Score
    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) 9,815,093 ops/sec 1,896,415 ops/sec 5.18 50.00% 50.00% +128.00%
    Redis RPS (pipeline=16, SET) 94,019,546 ops/sec 11,539,523 ops/sec 8.15 20.00% 20.00% +52.10%
    PassMark Memory Mark (composite) 3,004 2,411 1.25 10.00% 10.00% +2.26%
    Memory bandwidth (read, 16 MB ~ L3) 208,285 MB/sec 107,368 MB/sec 1.94 10.00% 10.00% +6.85%
    PassMark single-thread CPU 2,936 Mops/s 2,363 Mops/s 1.24 10.00% 10.00% +2.17%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 1,891

    Geekbench Multi-Core

    Score: 20,790

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 113811
    Compression
    		 2214922
    Encryption
    		 139192
    Extended Instructions
    		 151387
    Floating Point Maths
    		 451092
    Integer Maths
    		 674319
    Physics
    		 19795
    Prime Numbers
    		 1485
    Single Threaded
    		 2936
    String Sorting
    		 316816

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 3004
    Database Operations
    		 29393
    Memory Latency
    		 71
    Memory Read Cached
    		 27855
    Memory Read Uncached
    		 26643
    Memory Write
    		 25812

    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

    Alternatives

    Servers of the Same Family

    INSTANCEvCPUsMEMORYGPUs
    b2-7 27 GiB0
    b3-8 28 GiB0
    b2-15 415 GiB0
    b3-16 416 GiB0
    b2-30 830 GiB0
    b3-32 832 GiB0
    b2-60 1660 GiB0

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    INSTANCEVENDORvCPUsMEMORYGPUs

    b3-512 FAQs