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r5dn.4xlarge by Amazon Web Services

r5dn.4xlarge is a Memory optimized [Instance store volumes] [Network and EBS optimized] Gen5 4xlarge server offered by Amazon Web Services with 16 vCPUs, 128 GiB of memory and 600 GB of storage. The pricing starts at 0.2353 USD per hour.
16 vCPU
128 GiB Memory
600 GB Storage
Spare SCore
13545
(All-cores)
1285
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r5dn.4xlarge
Description
Memory optimized [Instance store volumes] [Network and EBS optimized] Gen5 4xlarge
Family
r5dn
Hw Virt
Status
active
Observed At
2026-07-27T09:10:18.026725

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.475467 USD/h 1.336 USD/h
Oregon (US) / us-west-2
0.656475 USD/h 1.336 USD/h
Northern Virgina (US) / us-east-1
0.76778 USD/h 1.336 USD/h
Stockholm (SE) / eu-north-1
0.38415 USD/h 1.416 USD/h
Dublin (IE) / eu-west-1
0.7723 USD/h 1.488 USD/h
Paris (FR) / eu-west-3
0.39905 USD/h 1.568 USD/h
Milan (IT) / eu-south-1
0.5061 USD/h 1.568 USD/h
Seoul (KR) / ap-northeast-2
0.5055 USD/h 1.592 USD/h
Frankfurt (DE) / eu-central-1
0.728633 USD/h 1.592 USD/h
Singapore (SG) / ap-southeast-1
0.6779 USD/h 1.6 USD/h
Tokyo (JP) / ap-northeast-1
0.5363 USD/h 1.624 USD/h
Sydney (AU) / ap-southeast-2
0.5894 USD/h 1.632 USD/h
Cape Town (ZA) / af-south-1
0.268933 USD/h 1.768 USD/h

Processor

vCPUs
16
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
8
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
256 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
256 KiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
8 MiB
CPU L3 Cache
36 MiB
CPU L3 Cache Total
36 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
10.5
Scalability
131.25

System Resources and Accelerators

MEMORY
Memory Amount
128 GiB
Memory Amount Actual
128 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
    600 GB
    Storage Type
    nvme ssd
    Storages
    • 300 GB nvme ssd
    • 300 GB nvme ssd
    NETWORK
    Network Speed Baseline
    16.25 Gbps
    Network Speed Max
    25 Gbps
    Network Storage Speed Baseline
    4.75 Gbps
    Network Storage Speed Max
    4.75 Gbps
    Inbound Traffic
    0 GB/month
    Outbound Traffic
    0 GB/month
    IPv4
    0

    Server Description

    A memory-optimized platform featuring dedicated Intel Xeon processors, high-speed DDR4 memory, and local NVMe SSD storage for demanding database workloads.

    Memory OptimizedStorage & Database

    Amazon Web Services r5dn.4xlarge is a memory-optimized instance designed for high-throughput workloads. Powered by the AWS Nitro hypervisor, it features an Intel Xeon 8259CL x86_64 processor with 16 dedicated vCPUs (8 physical cores) running at 3.1 GHz, paired with 128.0 GB of DDR4 memory. The hardware configuration includes a 600 GB local NVMe SSD and a 16 Gbps baseline network bandwidth. Benchmarks show average multi-core CPU and memory performance, with a stress-ng multi-core score of 13544.88 and a Redis SET throughput of 13.59 million operations per second, though single-core performance is relatively weak. This instance offers a cost-effective balance of high memory capacity and fast local storage, making it well-suited for memory-intensive applications, database hosting, caching layers, and workloads requiring high network and EBS optimization.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    0.782Score
    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) 1,397,191 ops/sec 1,896,415 ops/sec 0.737 50.00% 50.00% -14.20%
    Redis RPS (pipeline=16, SET) 8,419,760 ops/sec 11,539,523 ops/sec 0.73 20.00% 20.00% -6.10%
    PassMark Memory Mark (composite) 2,591 2,411 1.07 10.00% 10.00% +0.68%
    Memory bandwidth (read, 16 MB ~ L3) 93,839 MB/sec 107,368 MB/sec 0.874 10.00% 10.00% -1.34%
    PassMark single-thread CPU 1,869 Mops/s 2,363 Mops/s 0.791 10.00% 10.00% -2.32%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 1,133

    Geekbench Multi-Core

    Score: 7,031

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 15113
    Compression
    		 204949
    Encryption
    		 6448
    Extended Instructions
    		 14995
    Floating Point Maths
    		 25125
    Integer Maths
    		 46820
    Physics
    		 1628
    Prime Numbers
    		 84
    Single Threaded
    		 1869
    String Sorting
    		 24328

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 2591
    Database Operations
    		 5550
    Memory Latency
    		 52
    Memory Read Cached
    		 22568
    Memory Read Uncached
    		 10900
    Memory Write
    		 10400

    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
    r5dn.large 216 GiB0
    r5dn.xlarge 432 GiB0
    r5dn.2xlarge 864 GiB0
    r5dn.8xlarge 32256 GiB0
    r5dn.12xlarge 48384 GiB0
    r5dn.16xlarge 64512 GiB0
    r5dn.24xlarge 96768 GiB0

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    r5dn.4xlarge FAQs