c8i.4xlarge by Amazon Web Services

c8i.4xlarge is a Compute optimized [Intel processors] Gen8 4xlarge server offered by Amazon Web Services with 16 vCPUs, 32 GiB of memory and 0 GB of storage. The pricing starts at 0.0982 USD per hour.
16 vCPU
32 GiB Memory
Spare SCore
17,297
(All-cores)
2,128
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c8i.4xlarge
Description
Compute optimized [Intel processors] Gen8 4xlarge
Family
c8i
Hw Virt
Average Time To Start
6.25
Status
active
Observed At
2026-09-13T19:50:16.538138

Availability

REGION / IDSPOTONDEMAND
(MY) / ap-southeast-5
0.221667 USD/h 0.7347 USD/h
Hyderabad (IN) / ap-south-2
0.146367 USD/h 0.7497 USD/h
Ohio (US) / us-east-2
0.205367 USD/h 0.7497 USD/h
Mumbai (IN) / ap-south-1
0.229433 USD/h 0.7497 USD/h
Oregon (US) / us-west-2
0.34795 USD/h 0.7497 USD/h
Northern Virgina (US) / us-east-1
0.39936 USD/h 0.7497 USD/h
Stockholm (SE) / eu-north-1
0.148333 USD/h 0.8026 USD/h
Aragón (ES) / eu-south-2
0.1038 USD/h 0.8043 USD/h
Dublin (IE) / eu-west-1
0.442767 USD/h 0.8044 USD/h
Quebec (CA) / ca-central-1
0.321767 USD/h 0.8202 USD/h
Seoul (KR) / ap-northeast-2
0.2371 USD/h 0.8467 USD/h
Frankfurt (DE) / eu-central-1
0.401967 USD/h 0.8555 USD/h
Singapore (SG) / ap-southeast-1
0.455467 USD/h 0.8644 USD/h
London (GB) / eu-west-2
0.2972 USD/h 0.8908 USD/h
Paris (FR) / eu-west-3
0.340467 USD/h 0.8908 USD/h
California (US) / us-west-1
0.3694 USD/h 0.9349 USD/h
Tokyo (JP) / ap-northeast-1
0.380133 USD/h 0.9438 USD/h
Sydney (AU) / ap-southeast-2
0.438933 USD/h 0.979 USD/h
Cape Town (ZA) / af-south-1
0.270467 USD/h 1.0055 USD/h
(NZ) / ap-southeast-6
0.1441 USD/h 1.028 USD/h
Sao Paulo (BR) / sa-east-1
0.463 USD/h 1.1554 USD/h

Processor

vCPUs
16
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
8
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
384 KiB
CPU L1I Cache
64 KiB
CPU L1I Cache Total
512 KiB
CPU L2 Cache
2 MiB
CPU L2 Cache Total
16 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
8.1
Scalability
101.25

System Resources and Accelerators

MEMORY
Memory Amount
32 GiB
Memory Amount Actual
32 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
      7.5 Gbps
      Network Speed Max
      15 Gbps
      Network Storage Speed Baseline
      5 Gbps
      Network Storage Speed Max
      10 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      A compute-optimized x86_64 instance featuring high-speed DDR5 memory and advanced Intel instruction sets for demanding single-core and text-processing workloads.

      Compute OptimizedGeneral Purpose

      The Amazon Web Services c8i.4xlarge is a compute-optimized instance powered by an Intel Xeon 6975P-C processor with 16 vCPUs and 8 physical cores running at 3.9 GHz. It features 32.0 GB of DDR5 memory at 7 GHz, a 480 MB L3 cache, and a baseline network bandwidth of 8 Gbps, with no local storage or GPUs. Operating on the Nitro hypervisor, the instance excels in single-core tasks, scoring in the top 10% for Geekbench single-core and text processing benchmarks. It also demonstrates strong single-threaded compression performance. While multi-core and memory bandwidth metrics are average, the inclusion of AVX-512 and Intel AMX instructions provides qualitative cost efficiency for vector and matrix calculations. This instance is suited for compute-intensive workloads, software compilation, text processing, and small-scale language model inference.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1.61Score
      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) 3,561,076 ops/sec 1,917,397 ops/sec 1.86 50.00% 50.00% +36.40%
      Redis RPS (pipeline=16, SET) 19,760,899 ops/sec 11,681,410 ops/sec 1.69 20.00% 20.00% +11.10%
      PassMark Memory Mark (composite) 2,599 2,418 1.07 10.00% 10.00% +0.68%
      Memory bandwidth (read, 16 MB ~ L3) 138,170 MB/sec 108,140 MB/sec 1.28 10.00% 10.00% +2.50%
      PassMark single-thread CPU 3,258 Mops/s 2,365 Mops/s 1.38 10.00% 10.00% +3.27%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,211

      Geekbench Multi-Core

      Score: 13,253

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 29108
      Compression
      		 320225
      Encryption
      		 18092
      Extended Instructions
      		 22930
      Floating Point Maths
      		 59751
      Integer Maths
      		 82506
      Physics
      		 3610
      Prime Numbers
      		 176
      Single Threaded
      		 3258
      String Sorting
      		 42471

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2599
      Database Operations
      		 9248
      Memory Latency
      		 67
      Memory Read Cached
      		 28921
      Memory Read Uncached
      		 16818
      Memory Write
      		 12015

      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.8xlarge 3264 GiB0
      c8i.12xlarge 4896 GiB0
      c8i.16xlarge 64128 GiB0
      c8i.24xlarge 96192 GiB0

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      c8i.4xlarge FAQs