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r5n.8xlarge by Amazon Web Services

r5n.8xlarge is a Memory optimized [Network and EBS optimized] Gen5 8xlarge server offered by Amazon Web Services with 32 vCPUs, 256 GiB of memory and 0 GB of storage. The pricing starts at 0.4261 USD per hour.
32 vCPU
256 GiB Memory
Spare SCore
27102
(All-cores)
1286
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r5n.8xlarge
Description
Memory optimized [Network and EBS optimized] Gen5 8xlarge
Family
r5n
Hw Virt
Status
active
Observed At
2026-08-13T10:37:32.009950

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.7602 USD/h 2.384 USD/h
Northern Virgina (US) / us-east-1
1.02228 USD/h 2.384 USD/h
Oregon (US) / us-west-2
1.170633 USD/h 2.384 USD/h
Mumbai (IN) / ap-south-1
0.8246 USD/h 2.448 USD/h
Stockholm (SE) / eu-north-1
0.621433 USD/h 2.544 USD/h
Quebec (CA) / ca-central-1
0.952567 USD/h 2.608 USD/h
Dublin (IE) / eu-west-1
1.166767 USD/h 2.672 USD/h
California (US) / us-west-1
0.92865 USD/h 2.704 USD/h
Milan (IT) / eu-south-1
0.475367 USD/h 2.8 USD/h
Paris (FR) / eu-west-3
0.867533 USD/h 2.8 USD/h
London (GB) / eu-west-2
1.057867 USD/h 2.8 USD/h
Seoul (KR) / ap-northeast-2
1.227725 USD/h 2.848 USD/h
Frankfurt (DE) / eu-central-1
1.008567 USD/h 2.848 USD/h
Singapore (SG) / ap-southeast-1
1.301833 USD/h 2.848 USD/h
Tokyo (JP) / ap-northeast-1
0.856233 USD/h 2.896 USD/h
Sydney (AU) / ap-southeast-2
1.212867 USD/h 2.896 USD/h
Cape Town (ZA) / af-south-1
0.4513 USD/h 3.179 USD/h
Hong Kong (HK) / ap-east-1
0.909833 USD/h 3.232 USD/h
Sao Paulo (BR) / sa-east-1
1.466167 USD/h 3.776 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
    0 GB
    Storages
      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 instance pairing 256 GB of RAM with 25 Gbps network bandwidth for memory-intensive, multi-threaded workloads.

      Memory OptimizedGeneral Purpose

      Amazon Web Services r5n.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. Built on the Nitro hypervisor, it provides 256.0 GB of DDR4 memory, yielding a high 8.0 GB of RAM per core, but lacks local storage and GPU accelerators. Network connectivity is supported by a baseline bandwidth of 25 Gbps. Benchmark data shows a distinct tradeoff: single-core CPU performance is weak, falling in the bottom 25%, while multi-core performance, memory bandwidth, and Redis SET operations achieve average ratings in the middle 50%. This hardware profile offers qualitative cost efficiency for memory-heavy workloads that scale across multiple threads rather than relying on single-threaded speed. It is best suited for in-memory databases, caching layers, and distributed data processing applications.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1.24Score
      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) 2,709,465 ops/sec 1,910,660 ops/sec 1.42 50.00% 50.00% +19.20%
      Redis RPS (pipeline=16, SET) 16,031,815 ops/sec 11,608,287 ops/sec 1.38 20.00% 20.00% +6.65%
      PassMark Memory Mark (composite) 2,560 2,416 1.06 10.00% 10.00% +0.58%
      Memory bandwidth (read, 16 MB ~ L3) 107,300 MB/sec 107,896 MB/sec 0.994 10.00% 10.00% -0.06%
      PassMark single-thread CPU 1,814 Mops/s 2,364 Mops/s 0.767 10.00% 10.00% -2.62%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,109

      Geekbench Multi-Core

      Score: 9,818

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 25488
      Compression
      		 396702
      Encryption
      		 12451
      Extended Instructions
      		 24991
      Floating Point Maths
      		 48651
      Integer Maths
      		 90804
      Physics
      		 2379
      Prime Numbers
      		 131
      Single Threaded
      		 1814
      String Sorting
      		 46504

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2560
      Database Operations
      		 10694
      Memory Latency
      		 53
      Memory Read Cached
      		 22287
      Memory Read Uncached
      		 10059
      Memory Write
      		 9882

      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
      r5n.large 216 GiB0
      r5n.xlarge 432 GiB0
      r5n.2xlarge 864 GiB0
      r5n.4xlarge 16128 GiB0
      r5n.12xlarge 48384 GiB0
      r5n.16xlarge 64512 GiB0
      r5n.24xlarge 96768 GiB0

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      r5n.8xlarge FAQs