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c7i-flex.12xlarge by Amazon Web Services

c7i-flex.12xlarge is a Compute optimized [Intel processors] Gen7 12xlarge server offered by Amazon Web Services with 48 vCPUs, 96 GiB of memory and 0 GB of storage. The pricing starts at 0.2305 USD per hour.
48 vCPU
96 GiB Memory
Spare SCore
50466
(All-cores)
2063
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c7i-flex.12xlarge
Description
Compute optimized [Intel processors] Gen7 12xlarge
Family
c7i-flex
Hw Virt
Status
active
Observed At
2026-08-03T22:12:27.684850

Availability

REGION / IDSPOTONDEMAND
(MY) / ap-southeast-5
0.6379 USD/h 1.9943 USD/h
(TH) / ap-southeast-7
0.792433 USD/h 1.9943 USD/h
Mumbai (IN) / ap-south-1
0.472267 USD/h 2.0349 USD/h
Northern Virgina (US) / us-east-1
0.78276 USD/h 2.0349 USD/h
Oregon (US) / us-west-2
0.841425 USD/h 2.0349 USD/h
Ohio (US) / us-east-2
0.678133 USD/h 2.0349 USD/h
Hyderabad (IN) / ap-south-2
1.423 USD/h 2.035 USD/h
(MX) / mx-central-1
0.857967 USD/h 2.1366 USD/h
Stockholm (SE) / eu-north-1
0.507 USD/h 2.1785 USD/h
Aragón (ES) / eu-south-2
0.451167 USD/h 2.1828 USD/h
Dublin (IE) / eu-west-1
1.063033 USD/h 2.1833 USD/h
Quebec (CA) / ca-central-1
0.700567 USD/h 2.2264 USD/h
Seoul (KR) / ap-northeast-2
0.53525 USD/h 2.2982 USD/h
Taipei (TW) / ap-east-2
0.504267 USD/h 2.3054 USD/h
Frankfurt (DE) / eu-central-1
0.876833 USD/h 2.3222 USD/h
Jakarta (ID) / ap-southeast-3
0.522867 USD/h 2.346 USD/h
Singapore (SG) / ap-southeast-1
0.825 USD/h 2.3466 USD/h
London (GB) / eu-west-2
0.874767 USD/h 2.4179 USD/h
Paris (FR) / eu-west-3
0.875867 USD/h 2.4179 USD/h
Milan (IT) / eu-south-1
0.7412 USD/h 2.418 USD/h
California (US) / us-west-1
0.83305 USD/h 2.5376 USD/h
Zurich (CH) / eu-central-2
1.137933 USD/h 2.5546 USD/h
Tokyo (JP) / ap-northeast-1
0.858567 USD/h 2.5616 USD/h
Hong Kong (HK) / ap-east-1
0.329433 USD/h 2.5855 USD/h
Sydney (AU) / ap-southeast-2
0.985633 USD/h 2.6573 USD/h
Cape Town (ZA) / af-south-1
0.76005 USD/h 2.729 USD/h
(NZ) / ap-southeast-6
0.8335 USD/h 2.7902 USD/h
Sao Paulo (BR) / sa-east-1
0.5543 USD/h 3.1361 USD/h

Processor

vCPUs
48
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
24
CPU Speed
3.2 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
8488C
CPU L1D Cache
48 KiB
CPU L1D Cache Total
1 MiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
768 KiB
CPU L2 Cache
2 MiB
CPU L2 Cache Total
48 MiB
CPU L3 Cache
105 MiB
CPU L3 Cache Total
105 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, 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, cldemote, movdiri, movdir64b, md_clear, serialize, amx_bf16, avx512_fp16, amx_tile, amx_int8, flush_l1d, arch_capabilities
Ecpus
24.5
Scalability
102.08

System Resources and Accelerators

MEMORY
Memory Amount
96 GiB
Memory Amount Actual
96 GiB
Memory Generation
DDR5
Memory Speed
4800 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
      9.375 Gbps
      Network Speed Max
      18.75 Gbps
      Network Storage Speed Baseline
      7.5 Gbps
      Network Storage Speed Max
      15 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A compute-optimized x86_64 server featuring 48 vCPUs and DDR5 memory, engineered for high-throughput database operations and software compilation.

      Compute OptimizedGeneral Purpose

      Amazon Web Services c7i-flex.12xlarge is an x86_64 compute-optimized server instance featuring 48 vCPUs and 24 physical cores powered by an Intel Xeon 8488C processor running at 3.2 GHz. It is equipped with 96.0 GB of high-speed DDR5 memory at 5 GHz, yielding 2.0 GB of RAM per core, but lacks local storage and dedicated GPUs. Operating on the Nitro hypervisor, the instance delivers strong benchmark performance, including a Passmark CPU score of 65056.32 and a static web serving throughput of 72.85 GB/sec. It also excels in text generation for small language models, reaching 353.0 tokens per second. This instance is qualitatively cost-efficient for compute-heavy workloads that benefit from advanced instruction sets like AVX-512 and AMX. It is best suited for software compilation, database operations, web serving, and moderate machine learning inference tasks.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      3.27Score
      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) 9,628,038 ops/sec 1,910,660 ops/sec 5.04 50.00% 50.00% +124.00%
      Redis RPS (pipeline=16, SET) 44,766,459 ops/sec 11,608,287 ops/sec 3.86 20.00% 20.00% +31.00%
      PassMark Memory Mark (composite) 2,378 2,416 0.984 10.00% 10.00% -0.16%
      Memory bandwidth (read, 16 MB ~ L3) 241,283 MB/sec 107,896 MB/sec 2.24 10.00% 10.00% +8.40%
      PassMark single-thread CPU 3,091 Mops/s 2,364 Mops/s 1.31 10.00% 10.00% +2.74%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,152

      Geekbench Multi-Core

      Score: 19,030

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 65056
      Compression
      		 862699
      Encryption
      		 52713
      Extended Instructions
      		 66338
      Floating Point Maths
      		 171131
      Integer Maths
      		 240474
      Physics
      		 7612
      Prime Numbers
      		 380
      Single Threaded
      		 3091
      String Sorting
      		 115882

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2378
      Database Operations
      		 24332
      Memory Latency
      		 72
      Memory Read Cached
      		 26840
      Memory Read Uncached
      		 9243
      Memory Write
      		 13460

      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
      c7i-flex.large 24 GiB0
      c7i-flex.xlarge 48 GiB0
      c7i-flex.2xlarge 816 GiB0
      c7i-flex.4xlarge 1632 GiB0
      c7i-flex.8xlarge 3264 GiB0
      c7i-flex.16xlarge 64128 GiB0

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      c7i-flex.12xlarge FAQs