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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 0.1028 USD per hour.
16 vCPU
32 GiB Memory
Spare SCore
17297
(All-cores)
2128
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c8i.4xlarge
Description
Compute optimized [Intel processors] Gen8 4xlarge
Family
c8i
Hw Virt
Status
active
Observed At
2026-07-30T14:54:09.583129

Availability

REGION / IDSPOTONDEMAND
(MY) / ap-southeast-5
0.249 USD/h 0.7347 USD/h
Hyderabad (IN) / ap-south-2
0.215567 USD/h 0.7497 USD/h
Mumbai (IN) / ap-south-1
0.220733 USD/h 0.7497 USD/h
Ohio (US) / us-east-2
0.286033 USD/h 0.7497 USD/h
Oregon (US) / us-west-2
0.358075 USD/h 0.7497 USD/h
Northern Virgina (US) / us-east-1
0.33482 USD/h 0.7497 USD/h
Stockholm (SE) / eu-north-1
0.183567 USD/h 0.8026 USD/h
Aragón (ES) / eu-south-2
0.181167 USD/h 0.8043 USD/h
Dublin (IE) / eu-west-1
0.4208 USD/h 0.8044 USD/h
Quebec (CA) / ca-central-1
0.331767 USD/h 0.8202 USD/h
Seoul (KR) / ap-northeast-2
0.274275 USD/h 0.8467 USD/h
Frankfurt (DE) / eu-central-1
0.391 USD/h 0.8555 USD/h
Singapore (SG) / ap-southeast-1
0.419267 USD/h 0.8644 USD/h
Paris (FR) / eu-west-3
0.3292 USD/h 0.8908 USD/h
London (GB) / eu-west-2
0.368933 USD/h 0.8908 USD/h
California (US) / us-west-1
0.3409 USD/h 0.9349 USD/h
Tokyo (JP) / ap-northeast-1
0.333967 USD/h 0.9438 USD/h
Sydney (AU) / ap-southeast-2
0.4002 USD/h 0.979 USD/h
Cape Town (ZA) / af-south-1
0.229567 USD/h 1.0055 USD/h
(NZ) / ap-southeast-6
0.1028 USD/h 1.028 USD/h
Sao Paulo (BR) / sa-east-1
0.6041 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

      Server Description

      A high-frequency, compute-optimized x86_64 platform featuring advanced Intel matrix extensions and top-tier single-core processing capabilities.

      Compute OptimizedGeneral Purpose

      Amazon Web Services c8i.4xlarge is an x86_64 compute-optimized instance powered by an Intel Xeon 6975P-C processor running at 3.9 GHz. It features 16 dedicated vCPUs (8 physical cores), a 480 MB L3 cache, and 32.0 GB of high-speed 7 GHz DDR5 memory. The instance operates on the AWS Nitro hypervisor and provides an 8 Gbps baseline network bandwidth, though it lacks local storage and GPU accelerators. Benchmark results highlight top-tier single-core performance, particularly in Geekbench single-core and text processing tests, alongside strong single-threaded compression speeds. It also excels at lightweight LLM text generation, reaching 348.03 tokens/sec with a 135M model. The c8i.4xlarge is designed for compute-intensive workloads such as software compilation, text processing, and web serving where high-frequency single-core execution and advanced vector instructions are required.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1.63Score
      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) 3,561,076 ops/sec 1,896,415 ops/sec 1.88 50.00% 50.00% +37.10%
      Redis RPS (pipeline=16, SET) 19,760,899 ops/sec 11,539,523 ops/sec 1.71 20.00% 20.00% +11.30%
      PassMark Memory Mark (composite) 2,599 2,411 1.08 10.00% 10.00% +0.77%
      Memory bandwidth (read, 16 MB ~ L3) 138,170 MB/sec 107,368 MB/sec 1.29 10.00% 10.00% +2.58%
      PassMark single-thread CPU 3,258 Mops/s 2,363 Mops/s 1.38 10.00% 10.00% +3.27%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,198

      Geekbench Multi-Core

      Score: 13,407

      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

      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