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r6idn.4xlarge by Amazon Web Services

r6idn.4xlarge is a Memory optimized [Intel processors] [Instance store volumes] [Network and EBS optimized] Gen6 4xlarge server offered by Amazon Web Services with 16 vCPUs, 128 GiB of memory and 950 GB of storage. The pricing starts at 0.3321 USD per hour.
16 vCPU
128 GiB Memory
950 GB Storage
Spare SCore
15454
(All-cores)
1891
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r6idn.4xlarge
Description
Memory optimized [Intel processors] [Instance store volumes] [Network and EBS optimized] Gen6 4xlarge
Family
r6idn
Hw Virt
Status
active
Observed At
2026-08-12T03:55:14.536710

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.5146 USD/h 1.5631 USD/h
Oregon (US) / us-west-2
0.7633 USD/h 1.5631 USD/h
Northern Virgina (US) / us-east-1
0.9739 USD/h 1.5631 USD/h
Stockholm (SE) / eu-north-1
0.394 USD/h 1.6567 USD/h
Quebec (CA) / ca-central-1
0.7833 USD/h 1.7194 USD/h
Dublin (IE) / eu-west-1
0.7997 USD/h 1.741 USD/h
Paris (FR) / eu-west-3
0.588667 USD/h 1.8346 USD/h
Frankfurt (DE) / eu-central-1
0.749933 USD/h 1.8626 USD/h
Singapore (SG) / ap-southeast-1
0.753067 USD/h 1.872 USD/h
Tokyo (JP) / ap-northeast-1
0.562467 USD/h 1.9001 USD/h
Sydney (AU) / ap-southeast-2
0.683833 USD/h 1.9094 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
    950 GB
    Storage Type
    nvme ssd
    Storages
    • 950 GB nvme ssd
    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 processing, high-speed local NVMe storage, and balanced 25 Gbps network bandwidth.

    Memory OptimizedStorage & Database

    The Amazon Web Services r6idn.4xlarge is a memory-optimized instance featuring 16 vCPUs, 8 physical cores, and 128.0 GB of DDR4 memory powered by a 3.5 GHz Intel Xeon 8375C processor. Built on the Nitro hypervisor, it includes a bundled 950 GB NVMe SSD and a 25 Gbps baseline network interface. The processor supports AVX-512 and cryptographic acceleration, delivering average performance in CPU and memory bandwidth benchmarks, alongside strong text generation speeds of 265.24 tokens/sec for small language models. With a high memory-to-vCPU ratio of 8.0 GB per core and high-speed local storage, this instance is qualitatively cost-efficient for workloads requiring dense memory and fast local I/O. It is suited for database operations, caching layers, and memory-intensive enterprise applications.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    1.03Score
    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) 2,136,619 ops/sec 1,910,660 ops/sec 1.12 50.00% 50.00% +5.83%
    Redis RPS (pipeline=16, SET) 10,690,156 ops/sec 11,608,287 ops/sec 0.921 20.00% 20.00% -1.63%
    PassMark Memory Mark (composite) 2,483 2,416 1.03 10.00% 10.00% +0.30%
    Memory bandwidth (read, 16 MB ~ L3) 95,289 MB/sec 107,896 MB/sec 0.883 10.00% 10.00% -1.24%
    PassMark single-thread CPU 2,369 Mops/s 2,364 Mops/s 1 10.00% 10.00% 0.00%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 1,580

    Geekbench Multi-Core

    Score: 9,632

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 21160
    Compression
    		 245010
    Encryption
    		 14561
    Extended Instructions
    		 14404
    Floating Point Maths
    		 34301
    Integer Maths
    		 67096
    Physics
    		 2353
    Prime Numbers
    		 137
    Single Threaded
    		 2369
    String Sorting
    		 34832

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 2483
    Database Operations
    		 7820
    Memory Latency
    		 61
    Memory Read Cached
    		 23371
    Memory Read Uncached
    		 11365
    Memory Write
    		 10252

    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
    r6idn.large 216 GiB0
    r6idn.xlarge 432 GiB0
    r6idn.2xlarge 864 GiB0
    r6idn.8xlarge 32256 GiB0
    r6idn.12xlarge 48384 GiB0
    r6idn.16xlarge 64512 GiB0
    r6idn.24xlarge 96768 GiB0

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    r6idn.4xlarge FAQs