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r6i.16xlarge by Amazon Web Services

r6i.16xlarge is a Memory optimized [Intel processors] Gen6 16xlarge server offered by Amazon Web Services with 64 vCPUs, 512 GiB of memory and 0 GB of storage. The pricing starts at 0.4378 USD per hour.
64 vCPU
512 GiB Memory
Spare SCore
61950
(All-cores)
1894
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r6i.16xlarge
Description
Memory optimized [Intel processors] Gen6 16xlarge
Family
r6i
Hw Virt
Status
active
Observed At
2026-07-31T11:13:33.242068

Availability

REGION / IDSPOTONDEMAND
Northern Virgina (US) / us-east-1
1.2311 USD/h 4.032 USD/h
Ohio (US) / us-east-2
1.475133 USD/h 4.032 USD/h
Oregon (US) / us-west-2
1.596125 USD/h 4.032 USD/h
(TH) / ap-southeast-7
1.2257 USD/h 4.1344 USD/h
(MY) / ap-southeast-5
1.489767 USD/h 4.1344 USD/h
Mumbai (IN) / ap-south-1
1.190033 USD/h 4.16 USD/h
Hyderabad (IN) / ap-south-2
1.3215 USD/h 4.16 USD/h
(MX) / mx-central-1
1.305267 USD/h 4.2336 USD/h
Stockholm (SE) / eu-north-1
1.324833 USD/h 4.288 USD/h
Taipei (TW) / ap-east-2
1.318767 USD/h 4.3776 USD/h
Calgary (CA) / ca-west-1
0.481533 USD/h 4.416 USD/h
Quebec (CA) / ca-central-1
1.790033 USD/h 4.416 USD/h
California (US) / us-west-1
1.0895 USD/h 4.48 USD/h
Dublin (IE) / eu-west-1
1.929633 USD/h 4.512 USD/h
London (GB) / eu-west-2
1.687133 USD/h 4.736 USD/h
Paris (FR) / eu-west-3
1.516533 USD/h 4.736 USD/h
Milan (IT) / eu-south-1
1.610467 USD/h 4.736 USD/h
Tel Aviv (IL) / il-central-1
0.758367 USD/h 4.7376 USD/h
Sydney (AU) / ap-southeast-2
2.297633 USD/h 4.832 USD/h
Seoul (KR) / ap-northeast-2
1.47715 USD/h 4.864 USD/h
Singapore (SG) / ap-southeast-1
1.9705 USD/h 4.864 USD/h
Tokyo (JP) / ap-northeast-1
2.1634 USD/h 4.864 USD/h
Osaka (JP) / ap-northeast-3
2.351467 USD/h 4.864 USD/h
Frankfurt (DE) / eu-central-1
2.6064 USD/h 4.864 USD/h
United Arab Emirates / me-central-1
2.0318 USD/h 4.9632 USD/h
(NZ) / ap-southeast-6
0.739867 USD/h 5.0736 USD/h
Hong Kong (HK) / ap-east-1
0.816633 USD/h 5.344 USD/h
Zurich (CH) / eu-central-2
1.915333 USD/h 5.3504 USD/h
Cape Town (ZA) / af-south-1
0.7276 USD/h 5.376 USD/h
Sao Paulo (BR) / sa-east-1
1.5553 USD/h 6.432 USD/h

Processor

vCPUs
64
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
32
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
2 MiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
1 MiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
40 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, arch_perfmon, rep_good, nopl, xtopology, nonstop_tsc, cpuid, aperfmperf, tsc_known_freq, pni, pclmulqdq, monitor, 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
32.7
Scalability
102.19

System Resources and Accelerators

MEMORY
Memory Amount
512 GiB
Memory Amount Actual
512 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
      25 Gbps
      Network Storage Speed Baseline
      20 Gbps
      Network Storage Speed Max
      20 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A memory-optimized x86_64 platform featuring a high memory-to-core ratio and strong multi-core processing for database and enterprise workloads.

      Memory Optimized

      Amazon Web Services r6i.16xlarge is a memory-optimized instance featuring 64 vCPUs and 512.0 GB of DDR4 RAM, powered by an Intel Xeon 8375C processor running at 3.5 GHz. Built on the AWS Nitro System, this x86_64 server delivers 8.0 GB of memory per physical core but lacks local storage and GPU accelerators. Benchmark results indicate strong multi-core performance, with a PassMark CPU score of 57729.17 and strong database operations performance. Single-core metrics and memory bandwidth fall within the average tier, with large-block read bandwidth at 167.36 GB/sec. The instance supports advanced instruction sets like AVX-512 and cryptographic acceleration. It is designed for memory-intensive workloads such as relational databases, in-memory caching, and enterprise applications requiring high memory capacity relative to compute resources.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      2.69Score
      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) 7,728,438 ops/sec 1,896,415 ops/sec 4.08 50.00% 50.00% +102.00%
      Redis RPS (pipeline=16, SET) 35,405,183 ops/sec 11,539,523 ops/sec 3.07 20.00% 20.00% +25.10%
      PassMark Memory Mark (composite) 2,703 2,411 1.12 10.00% 10.00% +1.14%
      Memory bandwidth (read, 16 MB ~ L3) 177,434 MB/sec 107,368 MB/sec 1.65 10.00% 10.00% +5.14%
      PassMark single-thread CPU 2,426 Mops/s 2,363 Mops/s 1.03 10.00% 10.00% +0.30%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,688

      Geekbench Multi-Core

      Score: 15,435

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 57729
      Compression
      		 950138
      Encryption
      		 55793
      Extended Instructions
      		 53738
      Floating Point Maths
      		 137218
      Integer Maths
      		 268452
      Physics
      		 4276
      Prime Numbers
      		 269
      Single Threaded
      		 2426
      String Sorting
      		 123266

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2703
      Database Operations
      		 26616
      Memory Latency
      		 57
      Memory Read Cached
      		 24377
      Memory Read Uncached
      		 11976
      Memory Write
      		 10860

      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.4xlarge 16128 GiB0
      r6i.8xlarge 32256 GiB0
      r6i.12xlarge 48384 GiB0
      r6i.24xlarge 96768 GiB0

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      r6i.16xlarge FAQs