db.r5b.4xlarge

    $2.3680/hr

    ~$1728.64/month on-demand in N. Virginia (us-east-1)

    The db.r5b.4xlarge is a Memory Optimized RDS instance with 16 vCPUs and 128 GiB of memory with Up to 10 Gigabit network performance, starting at $2.368 per hour.

    Last updated: Feb 22, 2026, 12:01 PM UTC

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    Pricing Options

    On-Demand

    Pay as you go - no commitment

    Hourly Rate
    $2.3680/hr
    ~$1728.64/mo

    Reserved 1yr

    One year commitment

    1 Year - No Upfront
    $1.3716/hr
    ~$1001.27/mo
    Save 42%

    Reserved 3yr

    Three year commitment

    Not available

    R5b Family

    Switch between sizes in N. Virginia (us-east-1)

    SizevCPUMem
    db.r5b.12xlarge48384
    db.r5b.16xlarge64512
    db.r5b.24xlarge96768
    db.r5b.2xlarge864
    db.r5b.4xlarge16128
    db.r5b.8xlarge32256
    db.r5b.large216
    db.r5b.xlarge432

    Instance Specifications

    Detailed hardware and capabilities for db.r5b.4xlarge

    Processor

    vCPUs16
    Memory128 GiB
    Instance FamilyR5B
    Physical ProcessorIntel Xeon Platinum 8000 series
    Architecture64-bit
    Clock Speed3.1 GHz
    Current Gen
    Norm. Factor32

    Network

    PerformanceUp to 10 Gigabit
    Enhanced Networking

    Storage & Database

    StorageEBS Only
    EngineMariaDB
    LicenseNo license required
    DeploymentSingle-AZ

    EBS Performance

    EBS Optimized
    Max Bandwidth1,250 Mbps

    Regional Pricing Comparison

    Compare db.r5b.4xlarge (MariaDB) pricing across all regions - sorted by cost

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