r8i.8xlarge by Amazon Web Services

r8i.8xlarge is a Memory optimized [Intel processors] Gen8 8xlarge server offered by Amazon Web Services with 32 vCPUs, 256 GiB of memory and 0 GB of storage. The pricing starts at 0.2717 USD per hour.
32 vCPU
256 GiB Memory
Spare SCore
34,581
(All-cores)
2,110
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r8i.8xlarge
Description
Memory optimized [Intel processors] Gen8 8xlarge
Family
r8i
Hw Virt
Status
active
Observed At
2026-09-12T06:14:33.962861

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.6269 USD/h 2.2227 USD/h
Northern Virgina (US) / us-east-1
0.8542 USD/h 2.2227 USD/h
Oregon (US) / us-west-2
0.909 USD/h 2.2227 USD/h
(MY) / ap-southeast-5
0.697933 USD/h 2.279 USD/h
Hyderabad (IN) / ap-south-2
0.4499 USD/h 2.2933 USD/h
Mumbai (IN) / ap-south-1
0.6069 USD/h 2.2933 USD/h
Stockholm (SE) / eu-north-1
0.377233 USD/h 2.3638 USD/h
Calgary (CA) / ca-west-1
0.57785 USD/h 2.4344 USD/h
Quebec (CA) / ca-central-1
0.792867 USD/h 2.4344 USD/h
California (US) / us-west-1
1.211 USD/h 2.4696 USD/h
Aragón (ES) / eu-south-2
0.433033 USD/h 2.4872 USD/h
Dublin (IE) / eu-west-1
1.194533 USD/h 2.4872 USD/h
Milan (IT) / eu-south-1
0.6168 USD/h 2.6107 USD/h
Paris (FR) / eu-west-3
0.8714 USD/h 2.6107 USD/h
London (GB) / eu-west-2
1.0255 USD/h 2.6107 USD/h
Tel Aviv (IL) / il-central-1
0.935933 USD/h 2.6117 USD/h
Sydney (AU) / ap-southeast-2
1.055967 USD/h 2.6637 USD/h
Seoul (KR) / ap-northeast-2
1.232975 USD/h 2.6813 USD/h
Tokyo (JP) / ap-northeast-1
0.894333 USD/h 2.6813 USD/h
Frankfurt (DE) / eu-central-1
1.0093 USD/h 2.6813 USD/h
Singapore (SG) / ap-southeast-1
1.0436 USD/h 2.6813 USD/h
United Arab Emirates / me-central-1
1.1201 USD/h 2.736 USD/h
(NZ) / ap-southeast-6
0.2797 USD/h 2.7968 USD/h
Zurich (CH) / eu-central-2
0.9652 USD/h 2.9494 USD/h
Cape Town (ZA) / af-south-1
0.506733 USD/h 2.9635 USD/h
Sao Paulo (BR) / sa-east-1
2.427733 USD/h 3.5456 USD/h

Processor

vCPUs
32
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
16
CPU Speed
3.9 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
6975P-C
CPU L1D Cache
48 KiB
CPU L1D Cache Total
768 KiB
CPU L1I Cache
64 KiB
CPU L1I Cache Total
1 MiB
CPU L2 Cache
2 MiB
CPU L2 Cache Total
32 MiB
CPU L3 Cache
480 MiB
CPU L3 Cache Total
480 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, pdcm, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, tsc_deadline_timer, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, abm, 3dnowprefetch, cpuid_fault, 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, avx_vnni, avx512_bf16, wbnoinvd, ida, arat, avx512vbmi, umip, pku, ospke, waitpkg, avx512_vbmi2, gfni, vaes, vpclmulqdq, avx512_vnni, avx512_bitalg, tme, avx512_vpopcntdq, rdpid, bus_lock_detect, cldemote, movdiri, movdir64b, md_clear, serialize, amx_bf16, avx512_fp16, amx_tile, amx_int8, flush_l1d, arch_capabilities
Ecpus
16.4
Scalability
102.5

System Resources and Accelerators

MEMORY
Memory Amount
256 GiB
Memory Amount Actual
256 GiB
Memory Generation
DDR5
Memory Speed
7200 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
      15 Gbps
      Network Speed Max
      15 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 server featuring 256 GB of high-speed DDR5 RAM and dedicated Intel Xeon processing for demanding database workloads.

      Memory OptimizedGeneral Purpose

      The Amazon Web Services r8i.8xlarge is a memory-optimized instance featuring 32 vCPUs and 16 physical cores powered by an Intel Xeon 6975P-C processor running at 3.9 GHz. Built on the Nitro hypervisor, it delivers 256.0 GB of DDR5 memory at 7 GHz, translating to 8.0 GB of RAM per core. While the instance lacks local storage and dedicated GPUs, it provides a 15 Gbps baseline network bandwidth. Performance benchmarks show strong capabilities, including a Passmark CPU score of 51,024.22 and a Geekbench multi-core score of 17,097.0. It excels in memory-bound tasks, showing strong single-threaded compression and high-throughput static web serving. However, a tradeoff is visible in large-scale AI tasks, where LLM text generation for a 70B model drops to 2.71 tokens/second due to the absence of GPU acceleration. This instance is best suited for in-memory databases, caching layers, and memory-intensive enterprise applications.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      2.63Score
      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) 7,047,511 ops/sec 1,917,397 ops/sec 3.68 50.00% 50.00% +91.80%
      Redis RPS (pipeline=16, SET) 39,225,686 ops/sec 11,681,410 ops/sec 3.36 20.00% 20.00% +27.40%
      PassMark Memory Mark (composite) 2,340 2,418 0.968 10.00% 10.00% -0.33%
      Memory bandwidth (read, 16 MB ~ L3) 172,831 MB/sec 108,140 MB/sec 1.6 10.00% 10.00% +4.81%
      PassMark single-thread CPU 3,244 Mops/s 2,365 Mops/s 1.37 10.00% 10.00% +3.20%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,043

      Geekbench Multi-Core

      Score: 17,097

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 51024
      Compression
      		 637181
      Encryption
      		 36286
      Extended Instructions
      		 44152
      Floating Point Maths
      		 119503
      Integer Maths
      		 164968
      Physics
      		 5961
      Prime Numbers
      		 329
      Single Threaded
      		 3244
      String Sorting
      		 82535

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2340
      Database Operations
      		 14979
      Memory Latency
      		 83
      Memory Read Cached
      		 28866
      Memory Read Uncached
      		 14245
      Memory Write
      		 10564

      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
      r8i.large 216 GiB0
      r8i.xlarge 432 GiB0
      r8i.2xlarge 864 GiB0
      r8i.4xlarge 16128 GiB0
      r8i.12xlarge 48384 GiB0
      r8i.16xlarge 64512 GiB0
      r8i.24xlarge 96768 GiB0

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      r8i.8xlarge FAQs