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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 0.2279 USD per hour.
32 vCPU
256 GiB Memory
Spare SCore
34581
(All-cores)
2110
(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
2026-07-29T05:54:10.924940

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.741333 USD/h 2.2227 USD/h
Northern Virgina (US) / us-east-1
0.86282 USD/h 2.2227 USD/h
Oregon (US) / us-west-2
0.91425 USD/h 2.2227 USD/h
(MY) / ap-southeast-5
0.2279 USD/h 2.279 USD/h
Mumbai (IN) / ap-south-1
0.5336 USD/h 2.2933 USD/h
Hyderabad (IN) / ap-south-2
0.6146 USD/h 2.2933 USD/h
Stockholm (SE) / eu-north-1
0.5559 USD/h 2.3638 USD/h
Quebec (CA) / ca-central-1
0.7569 USD/h 2.4344 USD/h
California (US) / us-west-1
1.1063 USD/h 2.4696 USD/h
Aragón (ES) / eu-south-2
0.526033 USD/h 2.4872 USD/h
Dublin (IE) / eu-west-1
1.156133 USD/h 2.4872 USD/h
Paris (FR) / eu-west-3
0.803233 USD/h 2.6107 USD/h
London (GB) / eu-west-2
0.986833 USD/h 2.6107 USD/h
Sydney (AU) / ap-southeast-2
1.096667 USD/h 2.6637 USD/h
Seoul (KR) / ap-northeast-2
1.123925 USD/h 2.6813 USD/h
Tokyo (JP) / ap-northeast-1
0.810233 USD/h 2.6813 USD/h
Frankfurt (DE) / eu-central-1
0.964867 USD/h 2.6813 USD/h
Singapore (SG) / ap-southeast-1
1.0592 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
0.961 USD/h 2.9494 USD/h
Cape Town (ZA) / af-south-1
0.451467 USD/h 2.9635 USD/h
Sao Paulo (BR) / sa-east-1
2.574433 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 virtual server featuring high-speed DDR5 memory and advanced Intel matrix extensions for demanding data processing and caching workloads.

      Memory OptimizedCompute Optimized

      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. It is equipped with 256.0 GB of DDR5 memory operating at 7 GHz, providing an 8.0 GB memory-to-core ratio, but lacks local storage and dedicated GPUs. Built on the AWS Nitro hypervisor, the instance delivers a baseline network bandwidth of 15 Gbps. Benchmark results show strong performance across CPU-intensive and memory-bound tasks, including a Geekbench single-core score of 2043.0 and a top-tier text processing score of 2828.0. The hardware supports Intel AMX and AVX-512, enabling efficient execution of vector and matrix operations. This instance is well-suited for memory-intensive workloads such as in-memory databases, Redis caching, data decompression, and medium-scale language model inference.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      2.66Score
      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 1,896,415 ops/sec 3.72 50.00% 50.00% +92.90%
      Redis RPS (pipeline=16, SET) 39,225,686 ops/sec 11,539,523 ops/sec 3.4 20.00% 20.00% +27.70%
      PassMark Memory Mark (composite) 2,340 2,411 0.97 10.00% 10.00% -0.30%
      Memory bandwidth (read, 16 MB ~ L3) 172,831 MB/sec 107,368 MB/sec 1.61 10.00% 10.00% +4.88%
      PassMark single-thread CPU 3,244 Mops/s 2,363 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