c6i.12xlarge by Amazon Web Services

c6i.12xlarge is a Compute optimized [Intel processors] Gen6 12xlarge server offered by Amazon Web Services with 48 vCPUs, 96 GiB of memory and 0 GB of storage. The pricing starts at 0.204 USD per hour.
48 vCPU
96 GiB Memory
Spare SCore
46,466
(All-cores)
1,893
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c6i.12xlarge
Description
Compute optimized [Intel processors] Gen6 12xlarge
Family
c6i
Hw Virt
Status
active
Observed At
2026-10-29T21:42:29.815727

Availability

REGION / IDSPOTONDEMAND
(TH) / ap-southeast-7
0.569467 USD/h 1.9992 USD/h
(MY) / ap-southeast-5
0.6043 USD/h 1.9992 USD/h
Hyderabad (IN) / ap-south-2
0.204 USD/h 2.04 USD/h
Ohio (US) / us-east-2
0.4828 USD/h 2.04 USD/h
Oregon (US) / us-west-2
0.6784 USD/h 2.04 USD/h
Mumbai (IN) / ap-south-1
0.6959 USD/h 2.04 USD/h
Northern Virgina (US) / us-east-1
0.80246 USD/h 2.04 USD/h
(MX) / mx-central-1
1.1305 USD/h 2.142 USD/h
Stockholm (SE) / eu-north-1
0.266 USD/h 2.184 USD/h
Dublin (IE) / eu-west-1
1.0281 USD/h 2.1888 USD/h
Calgary (CA) / ca-west-1
0.587967 USD/h 2.232 USD/h
Quebec (CA) / ca-central-1
0.5758 USD/h 2.232 USD/h
Tel Aviv (IL) / il-central-1
0.452733 USD/h 2.2982 USD/h
Seoul (KR) / ap-northeast-2
0.56305 USD/h 2.304 USD/h
Taipei (TW) / ap-east-2
2.217667 USD/h 2.3112 USD/h
Frankfurt (DE) / eu-central-1
0.9332 USD/h 2.328 USD/h
Singapore (SG) / ap-southeast-1
1.017067 USD/h 2.352 USD/h
London (GB) / eu-west-2
0.796067 USD/h 2.424 USD/h
Milan (IT) / eu-south-1
0.784067 USD/h 2.424 USD/h
Paris (FR) / eu-west-3
0.801 USD/h 2.424 USD/h
California (US) / us-west-1
0.71055 USD/h 2.544 USD/h
Osaka (JP) / ap-northeast-3
0.748833 USD/h 2.568 USD/h
Tokyo (JP) / ap-northeast-1
0.989367 USD/h 2.568 USD/h
Hong Kong (HK) / ap-east-1
0.783167 USD/h 2.592 USD/h
Sydney (AU) / ap-southeast-2
1.156267 USD/h 2.664 USD/h
Cape Town (ZA) / af-south-1
0.9656 USD/h 2.736 USD/h
(NZ) / ap-southeast-6
1.610967 USD/h 2.7972 USD/h
Sao Paulo (BR) / sa-east-1
0.358933 USD/h 3.144 USD/h

Processor

vCPUs
48
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
24
CPU Speed
3.5 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
8375C
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
1 MiB
CPU L2 Cache Total
30 MiB
CPU L3 Cache
54 MiB
CPU L3 Cache Total
54 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, aperfmperf, tsc_known_freq, pni, pclmulqdq, ssse3, fma, cx16, 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, wbnoinvd, ida, arat, avx512vbmi, pku, ospke, avx512_vbmi2, gfni, vaes, vpclmulqdq, avx512_vnni, avx512_bitalg, tme, avx512_vpopcntdq, rdpid, md_clear, flush_l1d, arch_capabilities
Ecpus
24.6
Scalability
51.25

System Resources and Accelerators

MEMORY
Memory Amount
96 GiB
Memory Amount Actual
96 GiB
Memory Generation
DDR4
Memory Speed
3200 Mhz
ACCELERATORS
Accelerator Count
0
Accelerator Memory Min
0 MiB
Accelerator Memory Total
0 MiB
Accelerators
    STORAGE
    Storage Size
    0 GB
    Storages
      NETWORK
      Network Speed Baseline
      18.75 Gbps
      Network Speed Max
      18.75 Gbps
      Network Storage Speed Baseline
      15 Gbps
      Network Storage Speed Max
      15 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A high-density compute instance featuring forty-eight vCPUs and ninety-six gigabytes of memory optimized for processor-intensive workloads and distributed analytics.

      Compute OptimizedGeneral Purpose

      Amazon Web Services c6i.12xlarge is a compute-optimized instance featuring 48 vCPUs and 24 physical cores powered by an Intel Xeon 8375C processor running at 3.5 GHz. Built on the AWS Nitro System, it provides 96.0 GB of DDR4 memory, resulting in a 2.0 GB per vCPU ratio. The instance does not include local storage or GPUs, but features a baseline network bandwidth of 19 Gbps. Benchmark data highlights strong performance in cryptographic tasks and image processing, alongside solid memory read-write speeds. With hardware-accelerated instruction sets like AVX-512 and SHA_NI, the c6i.12xlarge is highly efficient for compute-heavy applications. It is optimized for workloads such as batch processing, high-performance web serving, and distributed analytics where processing density is prioritized over memory capacity.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      2.3Score
      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) 6,208,571 ops/sec 1,919,289 ops/sec 3.3 50.00% 50.00% +82.00%
      Redis RPS (pipeline=16, SET) 29,670,186 ops/sec 11,728,058 ops/sec 2.5 20.00% 20.00% +20.00%
      PassMark Memory Mark (composite) 2,547 2,416 1 10.00% 10.00% 0.00%
      Memory bandwidth (read, 16 MB ~ L3) 172,867 MB/sec 108,466 MB/sec 1.5 10.00% 10.00% +4.10%
      PassMark single-thread CPU 2,368 Mops/s 2,365 Mops/s 1 10.00% 10.00% 0.00%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,660

      Geekbench Multi-Core

      Score: 15,737

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 47,897
      Compression
      		 711,586
      Encryption
      		 42,482
      Extended Instructions
      		 41,762
      Floating Point Maths
      		 102,892
      Integer Maths
      		 201,287
      Physics
      		 3,686
      Prime Numbers
      		 223
      Single Threaded
      		 2,368
      String Sorting
      		 98,450

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2,547
      Database Operations
      		 20,909
      Memory Latency
      		 62
      Memory Read Cached
      		 24,302
      Memory Read Uncached
      		 11,519
      Memory Write
      		 10,413

      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

      INSTANCEvCPUsMEMORYAccelerators
      c6i.large 24 GiB0
      c6i.xlarge 48 GiB0
      c6i.2xlarge 816 GiB0
      c6i.4xlarge 1632 GiB0
      c6i.8xlarge 3264 GiB0
      c6i.16xlarge 64128 GiB0
      c6i.24xlarge 96192 GiB0

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      c6i.12xlarge FAQs