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r6in.4xlarge by Amazon Web Services

r6in.4xlarge is a Memory optimized [Intel processors] [Network and EBS optimized] Gen6 4xlarge server offered by Amazon Web Services with 16 vCPUs, 128 GiB of memory and 0 GB of storage. The pricing starts at 0.3251 USD per hour.
16 vCPU
128 GiB Memory
Spare SCore
15468
(All-cores)
1892
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r6in.4xlarge
Description
Memory optimized [Intel processors] [Network and EBS optimized] Gen6 4xlarge
Family
r6in
Hw Virt
Status
active
Observed At
2026-07-30T17:54:24.032661

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.3895 USD/h 1.3946 USD/h
Oregon (US) / us-west-2
0.462967 USD/h 1.3946 USD/h
Northern Virgina (US) / us-east-1
0.7499 USD/h 1.3946 USD/h
Stockholm (SE) / eu-north-1
0.4089 USD/h 1.4882 USD/h
Quebec (CA) / ca-central-1
0.41615 USD/h 1.5257 USD/h
Dublin (IE) / eu-west-1
0.693267 USD/h 1.5631 USD/h
Paris (FR) / eu-west-3
0.527467 USD/h 1.638 USD/h
Frankfurt (DE) / eu-central-1
0.613867 USD/h 1.6661 USD/h
Singapore (SG) / ap-southeast-1
0.6284 USD/h 1.6661 USD/h
Tokyo (JP) / ap-northeast-1
0.467167 USD/h 1.6942 USD/h
Sydney (AU) / ap-southeast-2
0.637 USD/h 1.6942 USD/h

Processor

vCPUs
16
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
8
CPU Speed
3.5 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
8375C
CPU L1D Cache
48 KiB
CPU L1D Cache Total
384 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
256 KiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
10 MiB
CPU L3 Cache
54 MiB
CPU L3 Cache Total
54 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, ssbd, ibrs, ibpb, stibp, ibrs_enhanced, fsgsbase, tsc_adjust, bmi1, avx2, smep, bmi2, erms, invpcid, avx512f, avx512dq, rdseed, adx, smap, avx512ifma, clflushopt, clwb, avx512cd, sha_ni, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, wbnoinvd, ida, arat, avx512vbmi, pku, ospke, avx512_vbmi2, gfni, vaes, vpclmulqdq, avx512_vnni, avx512_bitalg, tme, avx512_vpopcntdq, rdpid, md_clear, flush_l1d, arch_capabilities
Ecpus
8.2
Scalability
102.5

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
    0 GB
    Storages
      NETWORK
      Network Speed Baseline
      25 Gbps
      Network Speed Max
      50 Gbps
      Network Storage Speed Baseline
      12.5 Gbps
      Network Storage Speed Max
      25 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A memory-optimized x86 server featuring dedicated Intel Xeon processors and high-bandwidth networking for memory-intensive enterprise workloads.

      Memory Optimized

      Amazon Web Services r6in.4xlarge is a memory-optimized instance featuring 16 dedicated vCPUs from an Intel Xeon 8375C processor running at 3.5 GHz. Built on the x86_64 architecture and the AWS Nitro hypervisor, it provides 128.0 GB of DDR4 memory, establishing a high 8:1 memory-to-vCPU ratio. The instance lacks local storage and GPU accelerators, utilizing a 25 Gbps baseline network bandwidth for external connectivity. Performance benchmarks indicate solid mid-tier capabilities, with a Passmark CPU score of 21082.67 and a Redis SET performance of 15.9 million operations per second. It also demonstrates strong text generation performance on small language models at 272.59 tokens per second. Lacking local NVMe drives, the r6in.4xlarge is qualitatively cost-effective for memory-heavy applications that rely on network-attached storage, making it well-suited for in-memory databases, caching layers, and enterprise applications.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1.07Score
      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) 2,175,211 ops/sec 1,896,415 ops/sec 1.15 50.00% 50.00% +7.24%
      Redis RPS (pipeline=16, SET) 11,269,677 ops/sec 11,539,523 ops/sec 0.977 20.00% 20.00% -0.46%
      PassMark Memory Mark (composite) 2,601 2,411 1.08 10.00% 10.00% +0.77%
      Memory bandwidth (read, 16 MB ~ L3) 101,111 MB/sec 107,368 MB/sec 0.942 10.00% 10.00% -0.60%
      PassMark single-thread CPU 2,370 Mops/s 2,363 Mops/s 1 10.00% 10.00% 0.00%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,616

      Geekbench Multi-Core

      Score: 9,791

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 21083
      Compression
      		 245002
      Encryption
      		 14580
      Extended Instructions
      		 14058
      Floating Point Maths
      		 34289
      Integer Maths
      		 67069
      Physics
      		 2347
      Prime Numbers
      		 136
      Single Threaded
      		 2370
      String Sorting
      		 34731

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2601
      Database Operations
      		 7776
      Memory Latency
      		 58
      Memory Read Cached
      		 24352
      Memory Read Uncached
      		 12143
      Memory Write
      		 10750

      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
      r6in.large 216 GiB0
      r6in.xlarge 432 GiB0
      r6in.2xlarge 864 GiB0
      r6in.8xlarge 32256 GiB0
      r6in.12xlarge 48384 GiB0
      r6in.16xlarge 64512 GiB0
      r6in.24xlarge 96768 GiB0

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      r6in.4xlarge FAQs