r6i.8xlarge by Amazon Web Services

r6i.8xlarge is a Memory optimized [Intel processors] Gen6 8xlarge server offered by Amazon Web Services with 32 vCPUs, 256 GiB of memory and 0 GB of storage. The pricing starts at 0.208 USD per hour.
32 vCPU
256 GiB Memory
Spare SCore
30,971
(All-cores)
1,893
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r6i.8xlarge
Description
Memory optimized [Intel processors] Gen6 8xlarge
Family
r6i
Hw Virt
Status
active
Observed At
2026-10-30T01:01:11.033110

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.565267 USD/h 2.016 USD/h
Oregon (US) / us-west-2
0.774 USD/h 2.016 USD/h
Northern Virgina (US) / us-east-1
1.81806 USD/h 2.016 USD/h
(MY) / ap-southeast-5
0.62 USD/h 2.0672 USD/h
(TH) / ap-southeast-7
0.641067 USD/h 2.0672 USD/h
Hyderabad (IN) / ap-south-2
0.208 USD/h 2.08 USD/h
Mumbai (IN) / ap-south-1
0.804367 USD/h 2.08 USD/h
(MX) / mx-central-1
0.6451 USD/h 2.1168 USD/h
Stockholm (SE) / eu-north-1
0.2735 USD/h 2.144 USD/h
Taipei (TW) / ap-east-2
0.770067 USD/h 2.1888 USD/h
Calgary (CA) / ca-west-1
0.450467 USD/h 2.208 USD/h
Quebec (CA) / ca-central-1
0.757967 USD/h 2.208 USD/h
California (US) / us-west-1
0.8365 USD/h 2.24 USD/h
Dublin (IE) / eu-west-1
0.970533 USD/h 2.256 USD/h
Milan (IT) / eu-south-1
0.7017 USD/h 2.368 USD/h
Paris (FR) / eu-west-3
0.7356 USD/h 2.368 USD/h
London (GB) / eu-west-2
0.774967 USD/h 2.368 USD/h
Tel Aviv (IL) / il-central-1
0.843733 USD/h 2.3688 USD/h
Sydney (AU) / ap-southeast-2
0.993633 USD/h 2.416 USD/h
Seoul (KR) / ap-northeast-2
0.653975 USD/h 2.432 USD/h
Singapore (SG) / ap-southeast-1
0.942833 USD/h 2.432 USD/h
Tokyo (JP) / ap-northeast-1
0.879167 USD/h 2.432 USD/h
Frankfurt (DE) / eu-central-1
1.030933 USD/h 2.432 USD/h
Osaka (JP) / ap-northeast-3
0.9834 USD/h 2.432 USD/h
United Arab Emirates / me-central-1
1.0159 USD/h 2.4816 USD/h
(NZ) / ap-southeast-6
0.842867 USD/h 2.5368 USD/h
Hong Kong (HK) / ap-east-1
0.4911 USD/h 2.672 USD/h
Zurich (CH) / eu-central-2
0.850833 USD/h 2.6752 USD/h
Cape Town (ZA) / af-south-1
0.9652 USD/h 2.688 USD/h
Sao Paulo (BR) / sa-east-1
0.552133 USD/h 3.216 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
16.4
Scalability
51.25

System Resources and Accelerators

MEMORY
Memory Amount
256 GiB
Memory Amount Actual
256 GiB
Memory Generation
DDR4
Memory Speed
3200 Mhz
ACCELERATORS
Accelerator Count
0
Accelerator Memory Min
0 MiB
Accelerator Memory Total
0 MiB
Accelerators
    STORAGE
    Storage Size
    0 GB
    Storages
      NETWORK
      Network Speed Baseline
      12.5 Gbps
      Network Speed Max
      12.5 Gbps
      Network Storage Speed Baseline
      10 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 platform featuring 256 GB of DDR4 RAM and dedicated Intel Xeon processing for memory-intensive workloads.

      Memory OptimizedGeneral Purpose

      Amazon Web Services r6i.8xlarge is a memory-optimized instance featuring 32 vCPUs and 16 physical cores powered by a 3.5 GHz Intel Xeon 8375C processor. Built on the Nitro hypervisor, it provides 256.0 GB of DDR4 memory, yielding a high memory-to-vCPU ratio of 8.0 GB per core, but lacks local storage and dedicated GPUs. The instance delivers average-tier benchmark performance, including a Passmark CPU score of 36549.21 and a Redis SET throughput of 30.96 million operations per second. It shows strong text generation capabilities for small language models at 302.47 tokens/sec, though prompt processing for large 70B models is weak at 6.15 tokens/sec. With a 12 Gbps baseline network bandwidth, this instance is designed for memory-intensive workloads, database operations, and caching systems that do not require local NVMe storage.

      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) 4,363,611 ops/sec 1,919,289 ops/sec 2.3 50.00% 50.00% +52.00%
      Redis RPS (pipeline=16, SET) 21,226,160 ops/sec 11,728,058 ops/sec 1.8 20.00% 20.00% +12.00%
      PassMark Memory Mark (composite) 2,497 2,416 1 10.00% 10.00% 0.00%
      Memory bandwidth (read, 16 MB ~ L3) 155,069 MB/sec 108,466 MB/sec 1.5 10.00% 10.00% +4.10%
      PassMark single-thread CPU 2,361 Mops/s 2,365 Mops/s 1 10.00% 10.00% 0.00%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,653

      Geekbench Multi-Core

      Score: 13,944

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 36,549
      Compression
      		 493,035
      Encryption
      		 29,144
      Extended Instructions
      		 28,290
      Floating Point Maths
      		 68,609
      Integer Maths
      		 134,207
      Physics
      		 3,300
      Prime Numbers
      		 186
      Single Threaded
      		 2,361
      String Sorting
      		 68,242

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2,497
      Database Operations
      		 14,652
      Memory Latency
      		 63
      Memory Read Cached
      		 24,347
      Memory Read Uncached
      		 11,163
      Memory Write
      		 10,194

      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

      INSTANCEvCPUsMEMORYAccelerators
      r6i.large 216 GiB0
      r6i.xlarge 432 GiB0
      r6i.2xlarge 864 GiB0
      r6i.4xlarge 16128 GiB0
      r6i.12xlarge 48384 GiB0
      r6i.16xlarge 64512 GiB0
      r6i.24xlarge 96768 GiB0

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      r6i.8xlarge FAQs