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r5.4xlarge by Amazon Web Services

r5.4xlarge is a Memory optimized Gen5 4xlarge server offered by Amazon Web Services with 16 vCPUs, 128 GiB of memory and 0 GB of storage. The pricing starts at 0.1104 USD per hour.
16 vCPU
128 GiB Memory
Spare SCore
13542
(All-cores)
1286
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r5.4xlarge
Description
Memory optimized Gen5 4xlarge
Family
r5
Hw Virt
Status
active
Observed At
2026-08-01T07:07:24.699495

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.326867 USD/h 1.008 USD/h
Oregon (US) / us-west-2
0.349425 USD/h 1.008 USD/h
Northern Virgina (US) / us-east-1
0.3949 USD/h 1.008 USD/h
Mumbai (IN) / ap-south-1
0.3037 USD/h 1.04 USD/h
Hyderabad (IN) / ap-south-2
0.297933 USD/h 1.04 USD/h
Stockholm (SE) / eu-north-1
0.246 USD/h 1.072 USD/h
Calgary (CA) / ca-west-1
0.247433 USD/h 1.104 USD/h
Quebec (CA) / ca-central-1
0.3854 USD/h 1.104 USD/h
California (US) / us-west-1
0.3654 USD/h 1.12 USD/h
Aragón (ES) / eu-south-2
0.3523 USD/h 1.128 USD/h
Dublin (IE) / eu-west-1
0.530567 USD/h 1.128 USD/h
Milan (IT) / eu-south-1
0.1856 USD/h 1.184 USD/h
Tel Aviv (IL) / il-central-1
0.331133 USD/h 1.184 USD/h
Paris (FR) / eu-west-3
0.380667 USD/h 1.184 USD/h
London (GB) / eu-west-2
0.410733 USD/h 1.184 USD/h
Melbourne (AU) / ap-southeast-4
0.219467 USD/h 1.208 USD/h
Sydney (AU) / ap-southeast-2
0.453433 USD/h 1.208 USD/h
Jakarta (ID) / ap-southeast-3
0.213733 USD/h 1.216 USD/h
Osaka (JP) / ap-northeast-3
0.348333 USD/h 1.216 USD/h
Seoul (KR) / ap-northeast-2
0.528375 USD/h 1.216 USD/h
Tokyo (JP) / ap-northeast-1
0.4168 USD/h 1.216 USD/h
Frankfurt (DE) / eu-central-1
0.464567 USD/h 1.216 USD/h
Singapore (SG) / ap-southeast-1
0.542 USD/h 1.216 USD/h
United Arab Emirates / me-central-1
0.508 USD/h 1.241 USD/h
Hong Kong (HK) / ap-east-1
0.233133 USD/h 1.336 USD/h
Zurich (CH) / eu-central-2
0.466867 USD/h 1.338 USD/h
Cape Town (ZA) / af-south-1
0.391133 USD/h 1.344 USD/h
Sao Paulo (BR) / sa-east-1
0.3419 USD/h 1.608 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
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
2933 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
      5 Gbps
      Network Speed Max
      10 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 x86_64 server featuring 128 GB of DDR4 RAM and balanced multi-core performance for memory-intensive workloads.

      Memory OptimizedGeneral Purpose

      Amazon Web Services r5.4xlarge is a memory-optimized instance featuring an Intel Xeon 8259CL processor with 16 vCPUs, 8 physical cores, and 128.0 GB of DDR4 memory. Built on the Nitro hypervisor, this x86_64 server provides a high memory-to-vCPU ratio of 8 GB per core but lacks local storage and GPU accelerators. Network performance is limited to a 5 Gbps baseline. Benchmark results reveal a performance tradeoff: single-core CPU performance is weak, falling in the bottom 25%, while multi-core CPU and memory bandwidth benchmarks consistently rank in the average range. This resource profile makes the instance cost-efficient for memory-dense workloads that rely on multi-threaded execution rather than raw single-core speed. It is suited for database operations, caching layers, and general memory-intensive applications.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.784Score
      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) 1,416,601 ops/sec 1,896,415 ops/sec 0.747 50.00% 50.00% -13.60%
      Redis RPS (pipeline=16, SET) 8,473,467 ops/sec 11,539,523 ops/sec 0.734 20.00% 20.00% -6.00%
      PassMark Memory Mark (composite) 2,530 2,411 1.05 10.00% 10.00% +0.49%
      Memory bandwidth (read, 16 MB ~ L3) 93,698 MB/sec 107,368 MB/sec 0.873 10.00% 10.00% -1.35%
      PassMark single-thread CPU 1,808 Mops/s 2,363 Mops/s 0.765 10.00% 10.00% -2.64%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,025

      Geekbench Multi-Core

      Score: 6,589

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 14403
      Compression
      		 200327
      Encryption
      		 6240
      Extended Instructions
      		 12267
      Floating Point Maths
      		 24327
      Integer Maths
      		 45372
      Physics
      		 1581
      Prime Numbers
      		 80
      Single Threaded
      		 1808
      String Sorting
      		 23539

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2530
      Database Operations
      		 5441
      Memory Latency
      		 55
      Memory Read Cached
      		 21957
      Memory Read Uncached
      		 10947
      Memory Write
      		 10547

      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
      r5.large 216 GiB0
      r5.xlarge 432 GiB0
      r5.2xlarge 864 GiB0
      r5.8xlarge 32256 GiB0
      r5.12xlarge 48384 GiB0
      r5.16xlarge 64512 GiB0
      r5.24xlarge 96768 GiB0

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      r5.4xlarge FAQs