c8i.32xlarge by Amazon Web Services

c8i.32xlarge is a Compute optimized [Intel processors] Gen8 32xlarge server offered by Amazon Web Services with 128 vCPUs, 256 GiB of memory and 0 GB of storage. The pricing starts at 0.6421 USD per hour.
128 vCPU
256 GiB Memory
Spare SCore
138,365
(All-cores)
2,120
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c8i.32xlarge
Description
Compute optimized [Intel processors] Gen8 32xlarge
Family
c8i
Hw Virt
Average Time To Start
6.33
Status
active
Observed At
2026-09-15T20:36:04.787305

Availability

REGION / IDSPOTONDEMAND
(MY) / ap-southeast-5
1.6887 USD/h 5.8778 USD/h
Mumbai (IN) / ap-south-1
1.2145 USD/h 5.9974 USD/h
Hyderabad (IN) / ap-south-2
1.201667 USD/h 5.9974 USD/h
Ohio (US) / us-east-2
1.4545 USD/h 5.9974 USD/h
Oregon (US) / us-west-2
2.3499 USD/h 5.9974 USD/h
Northern Virgina (US) / us-east-1
3.07478 USD/h 5.9974 USD/h
Stockholm (SE) / eu-north-1
0.794067 USD/h 6.4211 USD/h
Aragón (ES) / eu-south-2
1.1619 USD/h 6.4346 USD/h
Dublin (IE) / eu-west-1
3.696767 USD/h 6.4352 USD/h
Quebec (CA) / ca-central-1
1.364033 USD/h 6.5619 USD/h
Seoul (KR) / ap-northeast-2
1.3526 USD/h 6.7738 USD/h
Frankfurt (DE) / eu-central-1
1.771867 USD/h 6.8442 USD/h
Singapore (SG) / ap-southeast-1
2.277433 USD/h 6.9152 USD/h
London (GB) / eu-west-2
1.302233 USD/h 7.1264 USD/h
Paris (FR) / eu-west-3
1.5274 USD/h 7.1264 USD/h
California (US) / us-west-1
2.14815 USD/h 7.479 USD/h
Tokyo (JP) / ap-northeast-1
1.354267 USD/h 7.5501 USD/h
Sydney (AU) / ap-southeast-2
2.707267 USD/h 7.8323 USD/h
Cape Town (ZA) / af-south-1
1.2158 USD/h 8.0442 USD/h
(NZ) / ap-southeast-6
1.346 USD/h 8.224 USD/h
Sao Paulo (BR) / sa-east-1
0.9378 USD/h 9.2435 USD/h

Processor

vCPUs
128
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
64
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
3 MiB
CPU L1I Cache
64 KiB
CPU L1I Cache Total
4 MiB
CPU L2 Cache
2 MiB
CPU L2 Cache Total
128 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
65.3
Scalability
102.03

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
      50 Gbps
      Network Speed Max
      50 Gbps
      Network Storage Speed Baseline
      40 Gbps
      Network Storage Speed Max
      40 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      A compute-optimized instance featuring 128 dedicated vCPUs, DDR5 memory, and advanced matrix extensions for intensive multi-core workloads.

      Compute OptimizedGeneral Purpose

      Amazon Web Services c8i.32xlarge is a compute-optimized server instance utilizing the Nitro hypervisor and an x86_64 Intel Xeon 6975P-C processor. It features 128 dedicated vCPUs across 64 physical cores running at 3.9 GHz, supported by 256.0 GB of DDR5 memory at 7 GHz. The instance does not include local storage or GPUs, but provides a baseline network bandwidth of 50 Gbps. Benchmark data places this server in the top 10% for multi-core CPU performance, memory read bandwidth, and database operations. It also shows strong capabilities in cryptography, software compilation, and large language model prompt processing. The resource configuration represents a highly efficient architecture for compute-heavy tasks where local storage is not required. It is designed for workloads such as software compilation, database operations, static web serving, and CPU-based machine learning inference.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      7.74Score
      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) 27,506,439 ops/sec 1,917,397 ops/sec 14.3 50.00% 50.00% +278.00%
      Redis RPS (pipeline=16, SET) 158,995,691 ops/sec 11,681,410 ops/sec 13.6 20.00% 20.00% +68.50%
      PassMark Memory Mark (composite) 2,807 2,418 1.16 10.00% 10.00% +1.50%
      Memory bandwidth (read, 16 MB ~ L3) 461,495 MB/sec 108,140 MB/sec 4.27 10.00% 10.00% +15.60%
      PassMark single-thread CPU 3,257 Mops/s 2,365 Mops/s 1.38 10.00% 10.00% +3.27%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,205

      Geekbench Multi-Core

      Score: 22,872

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 122859
      Compression
      		 2535875
      Encryption
      		 144442
      Extended Instructions
      		 176803
      Floating Point Maths
      		 477955
      Integer Maths
      		 660063
      Physics
      		 18846
      Prime Numbers
      		 1085
      Single Threaded
      		 3257
      String Sorting
      		 329842

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2807
      Database Operations
      		 34598
      Memory Latency
      		 65
      Memory Read Cached
      		 26631
      Memory Read Uncached
      		 17830
      Memory Write
      		 11733

      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

      PostgreSQL heavy read-only throughput

      Alternatives

      Servers of the Same Family

      INSTANCEvCPUsMEMORYGPUs
      c8i.large 24 GiB0
      c8i.xlarge 48 GiB0
      c8i.2xlarge 816 GiB0
      c8i.4xlarge 1632 GiB0
      c8i.8xlarge 3264 GiB0
      c8i.12xlarge 4896 GiB0
      c8i.16xlarge 64128 GiB0

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      c8i.32xlarge FAQs