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 0.2293 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
2026-10-27T06:58:17.794994

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.623133 USD/h 2.2227 USD/h
Northern Virgina (US) / us-east-1
0.76592 USD/h 2.2227 USD/h
Oregon (US) / us-west-2
0.90305 USD/h 2.2227 USD/h
(MY) / ap-southeast-5
0.541867 USD/h 2.279 USD/h
Hyderabad (IN) / ap-south-2
0.2293 USD/h 2.2933 USD/h
Mumbai (IN) / ap-south-1
0.816567 USD/h 2.2933 USD/h
Stockholm (SE) / eu-north-1
0.387533 USD/h 2.3638 USD/h
Calgary (CA) / ca-west-1
0.86235 USD/h 2.4344 USD/h
Quebec (CA) / ca-central-1
0.800533 USD/h 2.4344 USD/h
California (US) / us-west-1
1.0565 USD/h 2.4696 USD/h
Aragón (ES) / eu-south-2
0.5336 USD/h 2.4872 USD/h
Dublin (IE) / eu-west-1
1.2919 USD/h 2.4872 USD/h
Milan (IT) / eu-south-1
0.595767 USD/h 2.6107 USD/h
Paris (FR) / eu-west-3
0.8657 USD/h 2.6107 USD/h
London (GB) / eu-west-2
0.948467 USD/h 2.6107 USD/h
Tel Aviv (IL) / il-central-1
0.694967 USD/h 2.6117 USD/h
Sydney (AU) / ap-southeast-2
1.241533 USD/h 2.6637 USD/h
Seoul (KR) / ap-northeast-2
1.001525 USD/h 2.6813 USD/h
Tokyo (JP) / ap-northeast-1
0.8974 USD/h 2.6813 USD/h
Frankfurt (DE) / eu-central-1
1.055933 USD/h 2.6813 USD/h
Singapore (SG) / ap-southeast-1
1.0672 USD/h 2.6813 USD/h
United Arab Emirates / me-central-1
1.1201 USD/h 2.736 USD/h
(NZ) / ap-southeast-6
0.445433 USD/h 2.7968 USD/h
Zurich (CH) / eu-central-2
1.013733 USD/h 2.9494 USD/h
Cape Town (ZA) / af-south-1
0.7871 USD/h 2.9635 USD/h
Sao Paulo (BR) / sa-east-1
2.139267 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
51.25

System Resources and Accelerators

MEMORY
Memory Amount
256 GiB
Memory Amount Actual
256 GiB
Memory Generation
DDR5
Memory Speed
7200 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
      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_64 platform featuring 256 GB of DDR5 RAM and advanced Intel matrix extensions for memory-intensive enterprise workloads.

      Memory OptimizedGeneral Purpose

      Amazon Web Services r8i.8xlarge is a memory-optimized instance featuring 32 vCPUs and 256.0 GB of DDR5 RAM. Powered by an Intel Xeon 6975P-C processor running at 3.9 GHz, this x86_64 instance utilizes the Nitro hypervisor and delivers a baseline network bandwidth of 15 Gbps. It lacks local storage and dedicated GPUs, but compensates with advanced CPU instruction sets including AVX-512 and AMX. Benchmarks show strong performance in Geekbench, Passmark CPU, and static web serving, alongside top-tier text generation speeds for small LLM models. However, memory bandwidth and multi-core stress tests remain average, and large-scale LLM inference is weak due to the absence of GPU hardware. This instance is well-suited for memory-intensive databases, text processing, and medium-scale enterprise workloads.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      2.6Score
      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 1,918,343 ops/sec 3.7 50.00% 50.00% +92.00%
      Redis RPS (pipeline=16, SET) 39,225,686 ops/sec 11,704,734 ops/sec 3.2 20.00% 20.00% +26.00%
      PassMark Memory Mark (composite) 2,340 2,416 0.96 10.00% 10.00% -0.41%
      Memory bandwidth (read, 16 MB ~ L3) 172,831 MB/sec 108,420 MB/sec 1.5 10.00% 10.00% +4.10%
      PassMark single-thread CPU 3,244 Mops/s 2,365 Mops/s 1.3 10.00% 10.00% +2.70%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,043

      Geekbench Multi-Core

      Score: 17,097

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 51,024
      Compression
      		 637,181
      Encryption
      		 36,286
      Extended Instructions
      		 44,152
      Floating Point Maths
      		 119,503
      Integer Maths
      		 164,968
      Physics
      		 5,961
      Prime Numbers
      		 329
      Single Threaded
      		 3,244
      String Sorting
      		 82,535

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2,340
      Database Operations
      		 14,979
      Memory Latency
      		 83
      Memory Read Cached
      		 28,866
      Memory Read Uncached
      		 14,245
      Memory Write
      		 10,564

      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
      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