logo

r5dn.8xlarge by Amazon Web Services

r5dn.8xlarge is a Memory optimized [Instance store volumes] [Network and EBS optimized] Gen5 8xlarge server offered by Amazon Web Services with 32 vCPUs, 256 GiB of memory and 1.2 TB of storage. The pricing starts at 0.4438 USD per hour.
32 vCPU
256 GiB Memory
1.2 TB Storage
Spare SCore
27103
(All-cores)
1286
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r5dn.8xlarge
Description
Memory optimized [Instance store volumes] [Network and EBS optimized] Gen5 8xlarge
Family
r5dn
Hw Virt
Status
active
Observed At
2026-08-04T13:33:48.648446

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.92 USD/h 2.672 USD/h
Northern Virgina (US) / us-east-1
1.37366 USD/h 2.672 USD/h
Oregon (US) / us-west-2
1.405075 USD/h 2.672 USD/h
Stockholm (SE) / eu-north-1
0.73995 USD/h 2.832 USD/h
Dublin (IE) / eu-west-1
1.792933 USD/h 2.976 USD/h
Milan (IT) / eu-south-1
0.5282 USD/h 3.136 USD/h
Paris (FR) / eu-west-3
1.04265 USD/h 3.136 USD/h
Seoul (KR) / ap-northeast-2
1.15325 USD/h 3.184 USD/h
Frankfurt (DE) / eu-central-1
1.499233 USD/h 3.184 USD/h
Singapore (SG) / ap-southeast-1
1.413 USD/h 3.2 USD/h
Tokyo (JP) / ap-northeast-1
0.7289 USD/h 3.248 USD/h
Sydney (AU) / ap-southeast-2
1.675533 USD/h 3.264 USD/h
Cape Town (ZA) / af-south-1
0.569067 USD/h 3.536 USD/h

Processor

vCPUs
32
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
16
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
512 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
512 KiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
16 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
21.1
Scalability
131.88

System Resources and Accelerators

MEMORY
Memory Amount
256 GiB
Memory Amount Actual
256 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
    1200 GB
    Storage Type
    nvme ssd
    Storages
    • 600 GB nvme ssd
    • 600 GB nvme ssd
    NETWORK
    Network Speed Baseline
    25 Gbps
    Network Speed Max
    25 Gbps
    Network Storage Speed Baseline
    6.8 Gbps
    Network Storage Speed Max
    6.8 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-capacity local NVMe storage, and balanced multi-core performance for data-intensive applications.

    Memory OptimizedStorage & Database

    Amazon Web Services r5dn.8xlarge is a memory-optimized instance featuring 32 vCPUs and 16 physical cores powered by an Intel Xeon 8259CL processor running at 3.1 GHz. It is configured with 256.0 GB of DDR4 memory, a 1200 GB local NVMe SSD, and a baseline network bandwidth of 25 Gbps. Running on the Nitro hypervisor, this instance exhibits a clear tradeoff between single-core and multi-core capabilities. Single-core benchmarks, such as stress-ng single-core and single-threaded gzip compression, perform in the bottom 25%, whereas multi-core benchmarks, memory bandwidth, and database operations consistently rank in the middle 50%. The high memory-to-vCPU ratio and integrated local NVMe storage provide qualitative cost efficiency for memory-intensive deployments. This instance is suited for database operations, in-memory caching, and multi-threaded data processing workloads.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    1.28Score
    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) 2,780,985 ops/sec 1,910,660 ops/sec 1.46 50.00% 50.00% +20.80%
    Redis RPS (pipeline=16, SET) 16,464,760 ops/sec 11,608,287 ops/sec 1.42 20.00% 20.00% +7.26%
    PassMark Memory Mark (composite) 2,589 2,416 1.07 10.00% 10.00% +0.68%
    Memory bandwidth (read, 16 MB ~ L3) 115,873 MB/sec 107,896 MB/sec 1.07 10.00% 10.00% +0.68%
    PassMark single-thread CPU 1,877 Mops/s 2,364 Mops/s 0.794 10.00% 10.00% -2.28%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 1,185

    Geekbench Multi-Core

    Score: 10,191

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 26253
    Compression
    		 408564
    Encryption
    		 12852
    Extended Instructions
    		 25904
    Floating Point Maths
    		 50245
    Integer Maths
    		 93677
    Physics
    		 2341
    Prime Numbers
    		 133
    Single Threaded
    		 1877
    String Sorting
    		 48009

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 2589
    Database Operations
    		 10775
    Memory Latency
    		 53
    Memory Read Cached
    		 22719
    Memory Read Uncached
    		 10217
    Memory Write
    		 9953

    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.4xlarge 16128 GiB0
    r5dn.12xlarge 48384 GiB0
    r5dn.16xlarge 64512 GiB0
    r5dn.24xlarge 96768 GiB0

    Similar Servers

    INSTANCEVENDORvCPUsMEMORYGPUs

    r5dn.8xlarge FAQs