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r6in.16xlarge by Amazon Web Services

r6in.16xlarge is a Memory optimized [Intel processors] [Network and EBS optimized] Gen6 16xlarge server offered by Amazon Web Services with 64 vCPUs, 512 GiB of memory and 0 GB of storage. The pricing starts at 1.1324 USD per hour.
64 vCPU
512 GiB Memory
Spare SCore
61946
(All-cores)
1894
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r6in.16xlarge
Description
Memory optimized [Intel processors] [Network and EBS optimized] Gen6 16xlarge
Family
r6in
Hw Virt
Status
active
Observed At
2026-07-31T01:31:10.253291

Availability

REGION / IDSPOTONDEMAND
Northern Virgina (US) / us-east-1
1.60292 USD/h 5.5786 USD/h
Ohio (US) / us-east-2
1.616433 USD/h 5.5786 USD/h
Oregon (US) / us-west-2
1.930167 USD/h 5.5786 USD/h
Stockholm (SE) / eu-north-1
1.318433 USD/h 5.953 USD/h
Quebec (CA) / ca-central-1
1.7254 USD/h 6.1027 USD/h
Dublin (IE) / eu-west-1
2.408267 USD/h 6.2525 USD/h
Paris (FR) / eu-west-3
1.9372 USD/h 6.552 USD/h
Frankfurt (DE) / eu-central-1
2.697367 USD/h 6.6643 USD/h
Singapore (SG) / ap-southeast-1
2.490733 USD/h 6.6643 USD/h
Tokyo (JP) / ap-northeast-1
2.011 USD/h 6.7766 USD/h
Sydney (AU) / ap-southeast-2
3.489367 USD/h 6.7766 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
      100 Gbps
      Network Speed Max
      100 Gbps
      Network Storage Speed Baseline
      50 Gbps
      Network Storage Speed Max
      50 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

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

      Memory Optimized

      Amazon Web Services r6in.16xlarge is a memory-optimized server instance built on the AWS Nitro hypervisor. It features a 64-vCPU Intel Xeon 8375C processor with 32 physical cores operating at 3.5 GHz, supported by 512.0 GB of DDR4 memory. This configuration provides an 8:1 memory-to-vCPU ratio, making it highly suitable for memory-intensive applications. The instance lacks local storage and GPUs, but delivers a baseline network bandwidth of 100 Gbps. Performance benchmarks show strong multi-core CPU capabilities, database operations, and static web serving throughput, placing them in the top 25%. Conversely, single-core performance and memory bandwidth fall into the average tier. This server is optimized for workloads such as large-scale databases, in-memory caching, enterprise applications, and multi-threaded data processing.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      2.79Score
      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) 8,165,647 ops/sec 1,896,415 ops/sec 4.31 50.00% 50.00% +108.00%
      Redis RPS (pipeline=16, SET) 36,554,995 ops/sec 11,539,523 ops/sec 3.17 20.00% 20.00% +26.00%
      PassMark Memory Mark (composite) 2,685 2,411 1.11 10.00% 10.00% +1.05%
      Memory bandwidth (read, 16 MB ~ L3) 178,049 MB/sec 107,368 MB/sec 1.66 10.00% 10.00% +5.20%
      PassMark single-thread CPU 2,428 Mops/s 2,363 Mops/s 1.03 10.00% 10.00% +0.30%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,702

      Geekbench Multi-Core

      Score: 15,695

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 57857
      Compression
      		 949315
      Encryption
      		 56645
      Extended Instructions
      		 54040
      Floating Point Maths
      		 137249
      Integer Maths
      		 268393
      Physics
      		 4247
      Prime Numbers
      		 267
      Single Threaded
      		 2428
      String Sorting
      		 124834

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2685
      Database Operations
      		 26410
      Memory Latency
      		 57
      Memory Read Cached
      		 23608
      Memory Read Uncached
      		 12077
      Memory Write
      		 10785

      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.4xlarge 16128 GiB0
      r6in.8xlarge 32256 GiB0
      r6in.12xlarge 48384 GiB0
      r6in.24xlarge 96768 GiB0

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      r6in.16xlarge FAQs