r4.16xlarge by Amazon Web Services

r4.16xlarge is a Memory optimized Gen4 16xlarge server offered by Amazon Web Services with 64 vCPUs, 488 GiB of memory and 0 GB of storage. The pricing starts at 0.512 USD per hour.
64 vCPU
488 GiB Memory
Spare SCore
29,203
(All-cores)
869
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r4.16xlarge
Description
Memory optimized Gen4 16xlarge
Family
r4
Hw Virt
Status
active
Observed At
2026-09-14T08:41:15.240510

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
1.1539 USD/h 4.256 USD/h
Northern Virgina (US) / us-east-1
1.949667 USD/h 4.256 USD/h
Oregon (US) / us-west-2
1.371533 USD/h 4.256 USD/h
Mumbai (IN) / ap-south-1
0.7221 USD/h 4.384 USD/h
Quebec (CA) / ca-central-1
0.89725 USD/h 4.672 USD/h
California (US) / us-west-1
1.18745 USD/h 4.7424 USD/h
Dublin (IE) / eu-west-1
1.982733 USD/h 4.7424 USD/h
Paris (FR) / eu-west-3
0.892733 USD/h 4.992 USD/h
London (GB) / eu-west-2
1.2065 USD/h 4.992 USD/h
Sydney (AU) / ap-southeast-2
1.690333 USD/h 5.1072 USD/h
Seoul (KR) / ap-northeast-2
0.63845 USD/h 5.12 USD/h
Tokyo (JP) / ap-northeast-1
1.029833 USD/h 5.12 USD/h
Osaka (JP) / ap-northeast-3
1.5256 USD/h 5.12 USD/h
Singapore (SG) / ap-southeast-1
1.863933 USD/h 5.12 USD/h
Frankfurt (DE) / eu-central-1
1.652833 USD/h 5.1216 USD/h
Sao Paulo (BR) / sa-east-1
0.896 USD/h 8.96 USD/h

Processor

vCPUs
64
Hypervisor
xen
CPU Allocation
Dedicated
CPU Cores
32
CPU Speed
2.3 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
E5-2686 v4
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
256 KiB
CPU L2 Cache Total
8 MiB
CPU L3 Cache
45 MiB
CPU L3 Cache Total
90 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, ht, syscall, nx, pdpe1gb, rdtscp, lm, constant_tsc, arch_perfmon, rep_good, nopl, xtopology, nonstop_tsc, cpuid, aperfmperf, tsc_known_freq, pni, pclmulqdq, monitor, est, ssse3, fma, cx16, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, tsc_deadline_timer, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, abm, 3dnowprefetch, cpuid_fault, pti, fsgsbase, bmi1, hle, avx2, smep, bmi2, erms, invpcid, rtm, rdseed, adx, xsaveopt, ida
Ecpus
33.6
Scalability
105

System Resources and Accelerators

MEMORY
Memory Amount
488 GiB
Memory Amount Actual
488 GiB
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
      14 Gbps
      Network Storage Speed Max
      14 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A memory-optimized instance featuring 488 GB of RAM and 64 vCPUs, balanced for memory-intensive multi-threaded workloads and database operations.

      Memory Optimized

      Amazon Web Services r4.16xlarge is a memory-optimized instance designed for memory-intensive workloads. It features 64 vCPUs from an Intel Xeon E5-2686 v4 processor running at 2.3 GHz, paired with 488.0 GB of RAM and a 25 Gbps baseline network interface. The instance does not include local storage or GPU hardware. Benchmark data indicates a significant performance tradeoff, with single-core CPU execution and single-threaded compression scoring in the bottom 10% to 25% tiers, while multi-core performance, memory bandwidth, and multi-threaded operations perform at average levels. With 7.62 GB of memory per core, this instance is qualitatively cost-efficient for memory-heavy applications rather than compute-bound tasks. It is suited for database operations, Redis caching, static web serving, and multi-threaded data processing.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1.58Score
      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) 3,843,651 ops/sec 1,917,397 ops/sec 2 50.00% 50.00% +41.40%
      Redis RPS (pipeline=16, SET) 23,919,405 ops/sec 11,681,410 ops/sec 2.05 20.00% 20.00% +15.40%
      PassMark Memory Mark (composite) 2,349 2,418 0.972 10.00% 10.00% -0.28%
      Memory bandwidth (read, 16 MB ~ L3) 108,662 MB/sec 108,140 MB/sec 1 10.00% 10.00% 0.00%
      PassMark single-thread CPU 1,703 Mops/s 2,365 Mops/s 0.72 10.00% 10.00% -3.23%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 909

      Geekbench Multi-Core

      Score: 8,878

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 32456
      Compression
      		 603977
      Encryption
      		 13306
      Extended Instructions
      		 30726
      Floating Point Maths
      		 86820
      Integer Maths
      		 135646
      Physics
      		 2402
      Prime Numbers
      		 200
      Single Threaded
      		 1703
      String Sorting
      		 85718

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2349
      Database Operations
      		 17577
      Memory Latency
      		 54
      Memory Read Cached
      		 19221
      Memory Read Uncached
      		 9867
      Memory Write
      		 7180

      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
      r4.large 215 GiB0
      r4.xlarge 431 GiB0
      r4.2xlarge 861 GiB0
      r4.4xlarge 16122 GiB0
      r4.8xlarge 32244 GiB0

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      r4.16xlarge FAQs