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c8i-flex.8xlarge by Amazon Web Services

c8i-flex.8xlarge is a Compute optimized [Intel processors] Gen8 8xlarge server offered by Amazon Web Services with 32 vCPUs, 64 GiB of memory and 0 GB of storage. The pricing starts at 0.247 USD per hour.
32 vCPU
64 GiB Memory
Spare SCore
34668
(All-cores)
2131
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c8i-flex.8xlarge
Description
Compute optimized [Intel processors] Gen8 8xlarge
Family
c8i-flex
Hw Virt
Status
active
Observed At
2026-07-30T14:54:09.578101

Availability

REGION / IDSPOTONDEMAND
(MY) / ap-southeast-5
0.469233 USD/h 1.396 USD/h
Hyderabad (IN) / ap-south-2
0.404267 USD/h 1.4243 USD/h
Mumbai (IN) / ap-south-1
0.437733 USD/h 1.4243 USD/h
Oregon (US) / us-west-2
0.6937 USD/h 1.4243 USD/h
Ohio (US) / us-east-2
0.554433 USD/h 1.4243 USD/h
Northern Virgina (US) / us-east-1
0.67914 USD/h 1.4243 USD/h
Aragón (ES) / eu-south-2
0.342267 USD/h 1.5282 USD/h
Dublin (IE) / eu-west-1
0.794467 USD/h 1.5283 USD/h
Quebec (CA) / ca-central-1
0.533267 USD/h 1.5584 USD/h
Seoul (KR) / ap-northeast-2
0.41265 USD/h 1.6088 USD/h
Frankfurt (DE) / eu-central-1
0.708367 USD/h 1.6254 USD/h
Singapore (SG) / ap-southeast-1
0.698867 USD/h 1.6424 USD/h
London (GB) / eu-west-2
0.695767 USD/h 1.6925 USD/h
Paris (FR) / eu-west-3
0.806767 USD/h 1.6925 USD/h
California (US) / us-west-1
0.71495 USD/h 1.7763 USD/h
Tokyo (JP) / ap-northeast-1
0.630433 USD/h 1.7931 USD/h
Sydney (AU) / ap-southeast-2
0.807267 USD/h 1.8602 USD/h
Cape Town (ZA) / af-south-1
0.301 USD/h 1.9104 USD/h
(NZ) / ap-southeast-6
0.6209 USD/h 1.9531 USD/h
Sao Paulo (BR) / sa-east-1
0.822733 USD/h 2.1954 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, 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
16.3
Scalability
101.88

System Resources and Accelerators

MEMORY
Memory Amount
64 GiB
Memory Amount Actual
64 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 compute-optimized virtual server featuring dedicated Intel Xeon processors and high-speed DDR5 memory for demanding processing workloads.

      Compute OptimizedGeneral Purpose

      Amazon Web Services c8i-flex.8xlarge is an x86_64 compute-optimized server powered by the Nitro hypervisor. It features a dedicated Intel Xeon 6975P-C processor running at 3.9 GHz with 32 vCPUs, 16 physical cores, and a 480 MB L3 cache. The instance is equipped with 64.0 GB of 7 GHz DDR5 memory, providing 2.0 GB per core, but lacks local storage and GPU accelerators. Network connectivity is established at an 8 Gbps baseline. Benchmark data indicates strong performance in single-core and multi-core operations, particularly in text processing, data decompression, and cryptographic tasks. It also delivers strong prompt processing speeds for small and medium LLM inference. This hardware profile is highly efficient for compute-bound workloads, including software compilation, static web serving, image processing, and lightweight machine learning inference, where local storage is not a primary requirement.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      2.7Score
      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) 6,977,522 ops/sec 1,896,415 ops/sec 3.68 50.00% 50.00% +91.80%
      Redis RPS (pipeline=16, SET) 39,106,621 ops/sec 11,539,523 ops/sec 3.39 20.00% 20.00% +27.70%
      PassMark Memory Mark (composite) 2,342 2,411 0.971 10.00% 10.00% -0.29%
      Memory bandwidth (read, 16 MB ~ L3) 211,885 MB/sec 107,368 MB/sec 1.97 10.00% 10.00% +7.02%
      PassMark single-thread CPU 3,262 Mops/s 2,363 Mops/s 1.38 10.00% 10.00% +3.27%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,153

      Geekbench Multi-Core

      Score: 17,709

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 51553
      Compression
      		 636882
      Encryption
      		 36152
      Extended Instructions
      		 45003
      Floating Point Maths
      		 119772
      Integer Maths
      		 165317
      Physics
      		 6613
      Prime Numbers
      		 352
      Single Threaded
      		 3262
      String Sorting
      		 83821

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2342
      Database Operations
      		 16207
      Memory Latency
      		 75
      Memory Read Cached
      		 29019
      Memory Read Uncached
      		 10459
      Memory Write
      		 10915

      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.xlarge 48 GiB0
      c8i-flex.2xlarge 816 GiB0
      c8i-flex.4xlarge 1632 GiB0
      c8i-flex.12xlarge 4896 GiB0
      c8i-flex.16xlarge 64128 GiB0

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      c8i-flex.8xlarge FAQs