r5dn.16xlarge by Amazon Web Services

r5dn.16xlarge is a Memory optimized [Instance store volumes] [Network and EBS optimized] Gen5 16xlarge server offered by Amazon Web Services with 64 vCPUs, 512 GiB of memory and 2.4 TB of storage. The pricing starts at 0.9319 USD per hour.
64 vCPU
512 GiB Memory
2.4 TB Storage
Spare SCore
55,948
(All-cores)
1,328
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r5dn.16xlarge
Description
Memory optimized [Instance store volumes] [Network and EBS optimized] Gen5 16xlarge
Family
r5dn
Hw Virt
Status
active
Observed At
2026-09-12T15:17:44.792742

Availability

REGION / IDSPOTONDEMAND
Northern Virgina (US) / us-east-1
1.45046 USD/h 5.344 USD/h
Ohio (US) / us-east-2
1.517033 USD/h 5.344 USD/h
Oregon (US) / us-west-2
2.1609 USD/h 5.344 USD/h
Stockholm (SE) / eu-north-1
1.36525 USD/h 5.664 USD/h
Dublin (IE) / eu-west-1
2.563467 USD/h 5.952 USD/h
Milan (IT) / eu-south-1
1.4221 USD/h 6.272 USD/h
Paris (FR) / eu-west-3
1.3031 USD/h 6.272 USD/h
Seoul (KR) / ap-northeast-2
1.36795 USD/h 6.368 USD/h
Frankfurt (DE) / eu-central-1
2.323867 USD/h 6.368 USD/h
Singapore (SG) / ap-southeast-1
2.276467 USD/h 6.4 USD/h
Tokyo (JP) / ap-northeast-1
1.2419 USD/h 6.496 USD/h
Sydney (AU) / ap-southeast-2
3.177567 USD/h 6.528 USD/h
Cape Town (ZA) / af-south-1
1.321733 USD/h 7.072 USD/h

Processor

vCPUs
64
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
32
CPU Speed
3.1 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
8259CL
CPU L1D Cache
32 KiB
CPU L1D Cache Total
1 MiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
1 MiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
32 MiB
CPU L3 Cache
36 MiB
CPU L3 Cache Total
72 MiB
CPU Flags
fpu, vme, de, pse, tsc, msr, pae, mce, cx8, apic, sep, mtrr, pge, mca, cmov, pat, pse36, clflush, mmx, fxsr, sse, sse2, ss, ht, syscall, nx, pdpe1gb, rdtscp, lm, constant_tsc, rep_good, nopl, xtopology, nonstop_tsc, cpuid, aperfmperf, tsc_known_freq, pni, pclmulqdq, ssse3, fma, cx16, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, tsc_deadline_timer, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, abm, 3dnowprefetch, pti, fsgsbase, tsc_adjust, bmi1, avx2, smep, bmi2, erms, invpcid, mpx, avx512f, avx512dq, rdseed, adx, smap, clflushopt, clwb, avx512cd, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, ida, arat, pku, ospke, avx512_vnni
Ecpus
42.1
Scalability
131.56

System Resources and Accelerators

MEMORY
Memory Amount
512 GiB
Memory Amount Actual
512 GiB
Memory Generation
DDR4
Memory Speed
3200 Mhz
GPU
GPU Count
0
GPU Memory Min
0 MiB
GPU Memory Total
0 MiB
GPUs
    STORAGE
    Storage Size
    2400 GB
    Storage Type
    nvme ssd
    Storages
    • 600 GB nvme ssd
    • 600 GB nvme ssd
    • 600 GB nvme ssd
    • 600 GB nvme ssd
    NETWORK
    Network Speed Baseline
    75 Gbps
    Network Speed Max
    75 Gbps
    Network Storage Speed Baseline
    13.6 Gbps
    Network Storage Speed Max
    13.6 Gbps
    Inbound Traffic
    0 GB/month
    Outbound Traffic
    0 GB/month
    IPv4
    0

    Server Description

    A memory-optimized platform featuring high-speed local NVMe storage and exceptional network bandwidth for data-intensive enterprise workloads.

    Memory OptimizedStorage & Database

    Amazon Web Services r5dn.16xlarge is a memory-optimized instance designed for high-throughput workloads. Powered by the AWS Nitro hypervisor, it features 64 vCPUs from an Intel Xeon 8259CL processor running at 3.1 GHz, paired with 512 GB of DDR4 memory. The instance includes 2400 GB of local NVMe SSD storage and delivers a baseline network bandwidth of 75 Gbps. Benchmark results highlight strong memory bandwidth for large-block read and write operations, alongside average multi-core CPU performance. While single-core execution speed is relatively weak, its high memory-to-vCPU ratio and fast local storage make it highly efficient for memory-intensive applications. It is well-suited for large databases, in-memory data stores, and data-intensive enterprise workloads.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    2.12Score
    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) 5,188,951 ops/sec 1,917,397 ops/sec 2.71 50.00% 50.00% +64.60%
    Redis RPS (pipeline=16, SET) 29,640,802 ops/sec 11,681,410 ops/sec 2.54 20.00% 20.00% +20.50%
    PassMark Memory Mark (composite) 2,722 2,418 1.13 10.00% 10.00% +1.23%
    Memory bandwidth (read, 16 MB ~ L3) 241,857 MB/sec 108,140 MB/sec 2.24 10.00% 10.00% +8.40%
    PassMark single-thread CPU 1,880 Mops/s 2,365 Mops/s 0.795 10.00% 10.00% -2.27%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 1,210

    Geekbench Multi-Core

    Score: 12,085

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 44242
    Compression
    		 815837
    Encryption
    		 25715
    Extended Instructions
    		 54210
    Floating Point Maths
    		 100413
    Integer Maths
    		 187509
    Physics
    		 4812
    Prime Numbers
    		 267
    Single Threaded
    		 1880
    String Sorting
    		 95216

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 2722
    Database Operations
    		 21800
    Memory Latency
    		 51
    Memory Read Cached
    		 22815
    Memory Read Uncached
    		 10693
    Memory Write
    		 10358

    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
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    r5dn.xlarge 432 GiB0
    r5dn.2xlarge 864 GiB0
    r5dn.4xlarge 16128 GiB0
    r5dn.8xlarge 32256 GiB0
    r5dn.12xlarge 48384 GiB0
    r5dn.24xlarge 96768 GiB0

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    r5dn.16xlarge FAQs