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c8i-flex.xlarge by Amazon Web Services

c8i-flex.xlarge is a Compute optimized [Intel processors] Gen8 xlarge server offered by Amazon Web Services with 4 vCPUs, 8 GiB of memory and 0 GB of storage. The pricing starts at 0.0352 USD per hour.
4 vCPU
8 GiB Memory
Spare SCore
4301
(All-cores)
2124
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c8i-flex.xlarge
Description
Compute optimized [Intel processors] Gen8 xlarge
Family
c8i-flex
Hw Virt
Status
active
Observed At
2026-07-21T01:33:20.907733

Availability

REGION / IDSPOTONDEMAND
(MY) / ap-southeast-5
0.0551 USD/h 0.1745 USD/h
Hyderabad (IN) / ap-south-2
0.050433 USD/h 0.178 USD/h
Mumbai (IN) / ap-south-1
0.060833 USD/h 0.178 USD/h
Ohio (US) / us-east-2
0.0552 USD/h 0.178 USD/h
Oregon (US) / us-west-2
0.0707 USD/h 0.178 USD/h
Northern Virgina (US) / us-east-1
0.07702 USD/h 0.178 USD/h
Aragón (ES) / eu-south-2
0.046733 USD/h 0.191 USD/h
Dublin (IE) / eu-west-1
0.091333 USD/h 0.191 USD/h
Quebec (CA) / ca-central-1
0.076833 USD/h 0.1948 USD/h
Seoul (KR) / ap-northeast-2
0.05905 USD/h 0.2011 USD/h
Frankfurt (DE) / eu-central-1
0.0957 USD/h 0.2032 USD/h
Singapore (SG) / ap-southeast-1
0.087033 USD/h 0.2053 USD/h
Paris (FR) / eu-west-3
0.085967 USD/h 0.2116 USD/h
London (GB) / eu-west-2
0.084333 USD/h 0.2116 USD/h
California (US) / us-west-1
0.0771 USD/h 0.222 USD/h
Tokyo (JP) / ap-northeast-1
0.0793 USD/h 0.2241 USD/h
Sydney (AU) / ap-southeast-2
0.090433 USD/h 0.2325 USD/h
Cape Town (ZA) / af-south-1
0.0479 USD/h 0.2388 USD/h
(NZ) / ap-southeast-6
0.068933 USD/h 0.2441 USD/h
Sao Paulo (BR) / sa-east-1
0.0587 USD/h 0.2744 USD/h

Processor

vCPUs
4
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
2
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
96 KiB
CPU L1I Cache
64 KiB
CPU L1I Cache Total
128 KiB
CPU L2 Cache
2 MiB
CPU L2 Cache Total
4 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, rep_good, nopl, xtopology, nonstop_tsc, cpuid, tsc_known_freq, pni, pclmulqdq, 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
2
Scalability
100

System Resources and Accelerators

MEMORY
Memory Amount
8 GiB
Memory Amount Actual
8 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
      0.937 Gbps
      Network Speed Max
      12.5 Gbps
      Network Storage Speed Baseline
      0.63 Gbps
      Network Storage Speed Max
      10 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A compute-optimized virtual server delivering strong single-core performance and advanced Intel instruction sets for processing-heavy workloads.

      Compute OptimizedGeneral Purpose

      Amazon Web Services c8i-flex.xlarge is an x86_64 compute-optimized instance running on the Nitro hypervisor. It features 4 dedicated vCPUs from 2 physical Intel Xeon 6975P-C cores running at 3.9 GHz, paired with 8.0 GB of DDR5 memory. The server lacks local storage and GPUs, relying on a 1 Gbps baseline network. Performance benchmarks reveal strong single-core execution, highlighted by a top-tier text processing score and strong single-threaded compression speeds. Conversely, multi-core and memory bandwidth metrics fall into average or weak categories. Supported by advanced instruction sets like AVX-512 and Intel AMX, the instance provides a cost-efficient profile for compute-heavy, single-threaded applications, static web serving, and lightweight machine learning inference.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.539Score
      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) 876,732 ops/sec 1,896,415 ops/sec 0.462 50.00% 50.00% -32.00%
      Redis RPS (pipeline=16, SET) 4,986,349 ops/sec 11,539,523 ops/sec 0.432 20.00% 20.00% -15.50%
      PassMark Memory Mark (composite) 1,661 2,411 0.689 10.00% 10.00% -3.66%
      Memory bandwidth (read, 16 MB ~ L3) 59,280 MB/sec 107,368 MB/sec 0.552 10.00% 10.00% -5.77%
      PassMark single-thread CPU 3,271 Mops/s 2,363 Mops/s 1.38 10.00% 10.00% +3.27%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,110

      Geekbench Multi-Core

      Score: 4,866

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		8075
      Compression
      		80743
      Encryption
      		4590
      Extended Instructions
      		5630
      Floating Point Maths
      		14946
      Integer Maths
      		20600
      Physics
      		1016
      Prime Numbers
      		46
      Single Threaded
      		3271
      String Sorting
      		10693

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		1661
      Database Operations
      		2711
      Memory Latency
      		74
      Memory Read Cached
      		29116
      Memory Read Uncached
      		12913
      Memory Write
      		11388

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

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      c8i-flex.xlarge FAQs