logo

r6i.4xlarge by Amazon Web Services

r6i.4xlarge is a Memory optimized [Intel processors] Gen6 4xlarge server offered by Amazon Web Services with 16 vCPUs, 128 GiB of memory and 0 GB of storage. The pricing starts at 0.1108 USD per hour.
16 vCPU
128 GiB Memory
Spare SCore
15479
(All-cores)
1891
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r6i.4xlarge
Description
Memory optimized [Intel processors] Gen6 4xlarge
Family
r6i
Hw Virt
Status
active
Observed At
2026-07-29T11:31:06.507493

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.316133 USD/h 1.008 USD/h
Oregon (US) / us-west-2
0.3746 USD/h 1.008 USD/h
Northern Virgina (US) / us-east-1
0.4169 USD/h 1.008 USD/h
(TH) / ap-southeast-7
0.317967 USD/h 1.0336 USD/h
(MY) / ap-southeast-5
0.348033 USD/h 1.0336 USD/h
Mumbai (IN) / ap-south-1
0.297033 USD/h 1.04 USD/h
Hyderabad (IN) / ap-south-2
0.296967 USD/h 1.04 USD/h
(MX) / mx-central-1
0.316367 USD/h 1.0584 USD/h
Stockholm (SE) / eu-north-1
0.274167 USD/h 1.072 USD/h
Taipei (TW) / ap-east-2
0.3506 USD/h 1.0944 USD/h
Calgary (CA) / ca-west-1
0.1833 USD/h 1.104 USD/h
Quebec (CA) / ca-central-1
0.3981 USD/h 1.104 USD/h
California (US) / us-west-1
0.40995 USD/h 1.12 USD/h
Dublin (IE) / eu-west-1
0.525233 USD/h 1.128 USD/h
Milan (IT) / eu-south-1
0.293633 USD/h 1.184 USD/h
Paris (FR) / eu-west-3
0.3959 USD/h 1.184 USD/h
London (GB) / eu-west-2
0.4673 USD/h 1.184 USD/h
Tel Aviv (IL) / il-central-1
0.4839 USD/h 1.1844 USD/h
Sydney (AU) / ap-southeast-2
0.5091 USD/h 1.208 USD/h
Osaka (JP) / ap-northeast-3
0.374167 USD/h 1.216 USD/h
Seoul (KR) / ap-northeast-2
0.4676 USD/h 1.216 USD/h
Tokyo (JP) / ap-northeast-1
0.432433 USD/h 1.216 USD/h
Frankfurt (DE) / eu-central-1
0.512167 USD/h 1.216 USD/h
Singapore (SG) / ap-southeast-1
0.5746 USD/h 1.216 USD/h
United Arab Emirates / me-central-1
0.508 USD/h 1.2408 USD/h
(NZ) / ap-southeast-6
0.442333 USD/h 1.2684 USD/h
Hong Kong (HK) / ap-east-1
0.403833 USD/h 1.336 USD/h
Zurich (CH) / eu-central-2
0.3198 USD/h 1.3376 USD/h
Cape Town (ZA) / af-south-1
0.465267 USD/h 1.344 USD/h
Sao Paulo (BR) / sa-east-1
0.4139 USD/h 1.608 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
      6.25 Gbps
      Network Speed Max
      12.5 Gbps
      Network Storage Speed Baseline
      5 Gbps
      Network Storage Speed Max
      10 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A memory-optimized x86_64 server featuring a high memory-to-vCPU ratio and dedicated Intel Xeon processing for memory-bound workloads.

      Memory Optimized

      Amazon Web Services r6i.4xlarge is a memory-optimized instance featuring an Intel Xeon 8375C processor with 16 vCPUs, 8 physical cores, and a 3.5 GHz clock speed. Built on the x86_64 architecture and managed by the Nitro hypervisor, it delivers 128.0 GB of DDR4 memory, establishing an 8:1 memory-to-vCPU ratio. The instance lacks local storage and GPU accelerators, relying on a 6 Gbps baseline network bandwidth. Benchmark data indicates average-tier performance, with a Passmark CPU score of 21093.88, a Redis SET throughput of 15.38 million operations per second, and a cached small-block memory read bandwidth of 828.29 GB/sec. This hardware profile is suited for memory-intensive workloads, such as in-memory databases, caching layers, and data processing tasks that do not require local NVMe storage or hardware acceleration.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1.04Score
      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) 2,134,662 ops/sec 1,896,415 ops/sec 1.13 50.00% 50.00% +6.30%
      Redis RPS (pipeline=16, SET) 10,682,451 ops/sec 11,539,523 ops/sec 0.926 20.00% 20.00% -1.53%
      PassMark Memory Mark (composite) 2,546 2,411 1.06 10.00% 10.00% +0.58%
      Memory bandwidth (read, 16 MB ~ L3) 99,754 MB/sec 107,368 MB/sec 0.929 10.00% 10.00% -0.73%
      PassMark single-thread CPU 2,366 Mops/s 2,363 Mops/s 1 10.00% 10.00% 0.00%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,634

      Geekbench Multi-Core

      Score: 9,766

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 21094
      Compression
      		 247179
      Encryption
      		 14544
      Extended Instructions
      		 14074
      Floating Point Maths
      		 34296
      Integer Maths
      		 67082
      Physics
      		 2349
      Prime Numbers
      		 134
      Single Threaded
      		 2366
      String Sorting
      		 34677

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2546
      Database Operations
      		 7769
      Memory Latency
      		 60
      Memory Read Cached
      		 24281
      Memory Read Uncached
      		 11812
      Memory Write
      		 10440

      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
      r6i.large 216 GiB0
      r6i.xlarge 432 GiB0
      r6i.2xlarge 864 GiB0
      r6i.8xlarge 32256 GiB0
      r6i.12xlarge 48384 GiB0
      r6i.16xlarge 64512 GiB0
      r6i.24xlarge 96768 GiB0

      Similar Servers

      INSTANCEVENDORvCPUsMEMORYGPUs

      r6i.4xlarge FAQs