c6i.16xlarge by Amazon Web Services

c6i.16xlarge is a Compute optimized [Intel processors] Gen6 16xlarge server offered by Amazon Web Services with 64 vCPUs, 128 GiB of memory and 0 GB of storage. The pricing starts at 0.2666 USD per hour.
64 vCPU
128 GiB Memory
Spare SCore
61,950
(All-cores)
1,894
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c6i.16xlarge
Description
Compute optimized [Intel processors] Gen6 16xlarge
Family
c6i
Hw Virt
Status
active
Observed At
2026-11-09T16:47:45.561743

Availability

REGION / IDSPOTONDEMAND
(TH) / ap-southeast-7
0.5309 USD/h 2.6656 USD/h
(MY) / ap-southeast-5
0.837133 USD/h 2.6656 USD/h
Hyderabad (IN) / ap-south-2
0.272 USD/h 2.72 USD/h
Northern Virgina (US) / us-east-1
0.8899 USD/h 2.72 USD/h
Mumbai (IN) / ap-south-1
0.893633 USD/h 2.72 USD/h
Ohio (US) / us-east-2
0.9733 USD/h 2.72 USD/h
Oregon (US) / us-west-2
1.146225 USD/h 2.72 USD/h
(MX) / mx-central-1
1.307433 USD/h 2.856 USD/h
Stockholm (SE) / eu-north-1
0.413433 USD/h 2.912 USD/h
Dublin (IE) / eu-west-1
1.404767 USD/h 2.9184 USD/h
Calgary (CA) / ca-west-1
1.461333 USD/h 2.976 USD/h
Quebec (CA) / ca-central-1
1.182133 USD/h 2.976 USD/h
Tel Aviv (IL) / il-central-1
0.491367 USD/h 3.0643 USD/h
Seoul (KR) / ap-northeast-2
0.7892 USD/h 3.072 USD/h
Taipei (TW) / ap-east-2
3.0816 USD/h 3.0816 USD/h
Frankfurt (DE) / eu-central-1
1.2511 USD/h 3.104 USD/h
Singapore (SG) / ap-southeast-1
1.184633 USD/h 3.136 USD/h
Milan (IT) / eu-south-1
0.7005 USD/h 3.232 USD/h
London (GB) / eu-west-2
1.069167 USD/h 3.232 USD/h
Paris (FR) / eu-west-3
0.961833 USD/h 3.232 USD/h
California (US) / us-west-1
0.95445 USD/h 3.392 USD/h
Osaka (JP) / ap-northeast-3
1.250833 USD/h 3.424 USD/h
Tokyo (JP) / ap-northeast-1
1.563233 USD/h 3.424 USD/h
Hong Kong (HK) / ap-east-1
0.5953 USD/h 3.456 USD/h
Sydney (AU) / ap-southeast-2
1.659567 USD/h 3.552 USD/h
Cape Town (ZA) / af-south-1
0.769933 USD/h 3.648 USD/h
(NZ) / ap-southeast-6
1.739233 USD/h 3.7296 USD/h
Sao Paulo (BR) / sa-east-1
0.595033 USD/h 4.192 USD/h

Processor

vCPUs
64
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
32
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
2 MiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
1 MiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
40 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, arch_perfmon, rep_good, nopl, xtopology, nonstop_tsc, cpuid, aperfmperf, tsc_known_freq, pni, pclmulqdq, monitor, 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
32.7
Scalability
51.09

System Resources and Accelerators

MEMORY
Memory Amount
128 GiB
Memory Amount Actual
128 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
      25 Gbps
      Network Speed Max
      25 Gbps
      Network Storage Speed Baseline
      20 Gbps
      Network Storage Speed Max
      20 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A dedicated 64-vCPU compute-optimized platform featuring Intel Xeon processors, tailored for parallel processing and high-throughput multi-core workloads.

      Compute OptimizedGeneral Purpose

      Amazon Web Services c6i.16xlarge is an x86_64 compute-optimized instance powered by an Intel Xeon 8375C processor running at 3.5 GHz. It features 64 dedicated vCPUs (32 physical cores) and 128.0 GB of DDR4 memory, establishing a 2.0 GB per vCPU ratio. The architecture supports AVX-512 extensions and cryptographic acceleration. While the instance lacks local storage and dedicated GPUs, it provides a baseline network bandwidth of 25 Gbps. Benchmarks indicate strong multi-core capabilities, with high scores in software compilation, ray tracing, and static web serving throughput. Conversely, single-core performance and memory bandwidth align with average tiers. This instance delivers a balanced compute-to-memory profile, making it suitable for parallel processing tasks, database operations, and CPU-based language model inference.

      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) 7,833,730 ops/sec 1,922,940 ops/sec 4.1 50.00% 50.00% +100.00%
      Redis RPS (pipeline=16, SET) 35,492,086 ops/sec 11,797,257 ops/sec 2.9 20.00% 20.00% +24.00%
      PassMark Memory Mark (composite) 2,657 2,406 1.1 10.00% 10.00% +0.96%
      Memory bandwidth (read, 16 MB ~ L3) 175,936 MB/sec 108,657 MB/sec 1.6 10.00% 10.00% +4.80%
      PassMark single-thread CPU 2,428 Mops/s 2,365 Mops/s 1 10.00% 10.00% 0.00%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,691

      Geekbench Multi-Core

      Score: 15,312

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 57,907
      Compression
      		 946,716
      Encryption
      		 56,892
      Extended Instructions
      		 54,526
      Floating Point Maths
      		 137,266
      Integer Maths
      		 268,497
      Physics
      		 4,185
      Prime Numbers
      		 265
      Single Threaded
      		 2,428
      String Sorting
      		 126,783

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2,657
      Database Operations
      		 26,431
      Memory Latency
      		 58
      Memory Read Cached
      		 23,339
      Memory Read Uncached
      		 12,085
      Memory Write
      		 10,770

      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.12xlarge 4896 GiB0
      c6i.24xlarge 96192 GiB0

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      c6i.16xlarge FAQs