r6in.8xlarge by Amazon Web Services

r6in.8xlarge is a Memory optimized [Intel processors] [Network and EBS optimized] Gen6 8xlarge server offered by Amazon Web Services with 32 vCPUs, 256 GiB of memory and 0 GB of storage. The pricing starts at 0.3888 USD per hour.
32 vCPU
256 GiB Memory
Spare SCore
30,929
(All-cores)
1,893
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r6in.8xlarge
Description
Memory optimized [Intel processors] [Network and EBS optimized] Gen6 8xlarge
Family
r6in
Hw Virt
Status
active
Observed At
2026-10-06T04:41:05.253933

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.615733 USD/h 2.7893 USD/h
Northern Virgina (US) / us-east-1
1.18604 USD/h 2.7893 USD/h
Oregon (US) / us-west-2
1.068167 USD/h 2.7893 USD/h
Stockholm (SE) / eu-north-1
0.467933 USD/h 2.9765 USD/h
Quebec (CA) / ca-central-1
0.5344 USD/h 3.0514 USD/h
Dublin (IE) / eu-west-1
1.254167 USD/h 3.1262 USD/h
Paris (FR) / eu-west-3
0.728 USD/h 3.276 USD/h
Singapore (SG) / ap-southeast-1
1.3253 USD/h 3.3322 USD/h
Frankfurt (DE) / eu-central-1
1.6951 USD/h 3.3322 USD/h
Tokyo (JP) / ap-northeast-1
0.936167 USD/h 3.3883 USD/h
Sydney (AU) / ap-southeast-2
1.333267 USD/h 3.3883 USD/h

Processor

vCPUs
32
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
16
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
768 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
512 KiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
20 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
16.3
Scalability
50.94

System Resources and Accelerators

MEMORY
Memory Amount
256 GiB
Memory Amount Actual
256 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
      50 Gbps
      Network Speed Max
      50 Gbps
      Network Storage Speed Baseline
      25 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, high-speed DDR4 RAM, and 50 Gbps baseline network bandwidth.

      Memory Optimized

      Amazon Web Services r6in.8xlarge is a memory-optimized instance featuring 32 dedicated vCPUs and 16 physical cores powered by an Intel Xeon 8375C processor running at 3.5 GHz. Built on the Nitro hypervisor, it includes 256.0 GB of DDR4 memory operating at 3 GHz, delivering 8.0 GB of RAM per core. The instance lacks local storage and GPUs, but provides a high baseline network bandwidth of 50 Gbps. Benchmark results show average performance across compute and memory metrics, with a PassMark CPU score of 36693.52 and a Redis SET throughput of 30.91 million operations per second. It also exhibits strong text generation speeds of 298.34 tokens/sec for small language models. This hardware configuration is qualitatively cost-efficient for memory-heavy enterprise workloads, database operations, and high-throughput network applications.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1.8Score
      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) 4,327,075 ops/sec 1,916,704 ops/sec 2.3 50.00% 50.00% +52.00%
      Redis RPS (pipeline=16, SET) 21,422,693 ops/sec 11,642,227 ops/sec 1.8 20.00% 20.00% +12.00%
      PassMark Memory Mark (composite) 2,608 2,417 1.1 10.00% 10.00% +0.96%
      Memory bandwidth (read, 16 MB ~ L3) 145,456 MB/sec 108,361 MB/sec 1.4 10.00% 10.00% +3.40%
      PassMark single-thread CPU 2,370 Mops/s 2,365 Mops/s 1 10.00% 10.00% 0.00%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,634

      Geekbench Multi-Core

      Score: 13,955

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 36694
      Compression
      		 490130
      Encryption
      		 29168
      Extended Instructions
      		 28269
      Floating Point Maths
      		 68639
      Integer Maths
      		 134270
      Physics
      		 3456
      Prime Numbers
      		 194
      Single Threaded
      		 2370
      String Sorting
      		 68318

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2608
      Database Operations
      		 14854
      Memory Latency
      		 60
      Memory Read Cached
      		 24319
      Memory Read Uncached
      		 11947
      Memory Write
      		 10588

      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.12xlarge 48384 GiB0
      r6in.16xlarge 64512 GiB0
      r6in.24xlarge 96768 GiB0

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      r6in.8xlarge FAQs