c8g.16xlarge by Amazon Web Services

c8g.16xlarge is a Compute optimized [AWS Graviton processors] Gen8 16xlarge server offered by Amazon Web Services with 64 vCPUs, 128 GiB of memory and 0 GB of storage. The pricing starts at 0.1859 USD per hour.
64 vCPU
128 GiB Memory
Spare SCore
109,146
(All-cores)
1,707
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c8g.16xlarge
Description
Compute optimized [AWS Graviton processors] Gen8 16xlarge
Family
c8g
Hw Virt
Average Time To Start
6.5
Status
active
Observed At
2026-10-23T11:39:24.827238

Availability

REGION / IDSPOTONDEMAND
Hyderabad (IN) / ap-south-2
0.227233 USD/h 1.7274 USD/h
Mumbai (IN) / ap-south-1
0.766867 USD/h 1.7274 USD/h
(MY) / ap-southeast-5
0.9544 USD/h 2.4922 USD/h
(TH) / ap-southeast-7
1.1137 USD/h 2.4922 USD/h
Ohio (US) / us-east-2
0.6967 USD/h 2.5434 USD/h
Northern Virgina (US) / us-east-1
0.71796 USD/h 2.5523 USD/h
Oregon (US) / us-west-2
0.911325 USD/h 2.5523 USD/h
Stockholm (SE) / eu-north-1
0.5379 USD/h 2.7232 USD/h
Aragón (ES) / eu-south-2
0.276567 USD/h 2.7283 USD/h
Dublin (IE) / eu-west-1
1.3058 USD/h 2.729 USD/h
Quebec (CA) / ca-central-1
0.7196 USD/h 2.7827 USD/h
Calgary (CA) / ca-west-1
1.0892 USD/h 2.7827 USD/h
Tel Aviv (IL) / il-central-1
- 2.8653 USD/h
Seoul (KR) / ap-northeast-2
0.754175 USD/h 2.8723 USD/h
Taipei (TW) / ap-east-2
1.2374 USD/h 2.8813 USD/h
Frankfurt (DE) / eu-central-1
0.9429 USD/h 2.9024 USD/h
Jakarta (ID) / ap-southeast-3
0.2932 USD/h 2.9322 USD/h
Singapore (SG) / ap-southeast-1
1.109933 USD/h 2.9325 USD/h
Milan (IT) / eu-south-1
0.801533 USD/h 3.015 USD/h
London (GB) / eu-west-2
0.768175 USD/h 3.0221 USD/h
Paris (FR) / eu-west-3
1.1528 USD/h 3.0221 USD/h
California (US) / us-west-1
0.94395 USD/h 3.1718 USD/h
Zurich (CH) / eu-central-2
0.92755 USD/h 3.193 USD/h
Osaka (JP) / ap-northeast-3
0.7608 USD/h 3.2013 USD/h
Tokyo (JP) / ap-northeast-1
1.137467 USD/h 3.2019 USD/h
Hong Kong (HK) / ap-east-1
0.435867 USD/h 3.2032 USD/h
Melbourne (AU) / ap-southeast-4
0.637867 USD/h 3.321 USD/h
Sydney (AU) / ap-southeast-2
0.9703 USD/h 3.3216 USD/h
Cape Town (ZA) / af-south-1
0.912667 USD/h 3.4112 USD/h
(NZ) / ap-southeast-6
0.844067 USD/h 3.4874 USD/h
Sao Paulo (BR) / sa-east-1
1.2395 USD/h 3.9098 USD/h

Processor

vCPUs
64
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
64
CPU Speed
2.8 GHz
CPU Architecture
arm64
CPU Manufacturer
AWS
CPU Family
ARMv9
CPU Model
Neoverse-V2
CPU L1D Cache
64 KiB
CPU L1D Cache Total
4 MiB
CPU L1I Cache
64 KiB
CPU L1I Cache Total
4 MiB
CPU L2 Cache
2 MiB
CPU L2 Cache Total
128 MiB
CPU L3 Cache
36 MiB
CPU L3 Cache Total
36 MiB
CPU Flags
fp, asimd, evtstrm, aes, pmull, sha1, sha2, crc32, atomics, fphp, asimdhp, cpuid, asimdrdm, jscvt, fcma, lrcpc, dcpop, sha3, asimddp, sha512, sve, asimdfhm, dit, uscat, ilrcpc, flagm, ssbs, sb, paca, pacg, dcpodp, sve2, sveaes, svepmull, svebitperm, svesha3, flagm2, frint, svei8mm, svebf16, i8mm, bf16, dgh, rng, bti
Ecpus
64
Scalability
100

System Resources and Accelerators

MEMORY
Memory Amount
128 GiB
Memory Amount Actual
126 GiB
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
      30 Gbps
      Network Speed Max
      30 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

      CPU and System Topology

      Server Description

      An ARMv9 compute-optimized instance featuring 64 dedicated cores and top-tier memory bandwidth for highly parallelized workloads.

      Compute OptimizedGeneral Purpose

      Amazon Web Services c8g.16xlarge is a compute-optimized instance powered by the ARMv9 AWS Graviton Neoverse-V2 processor. It features 64 dedicated physical cores and 64 vCPUs running at 2.8 GHz, paired with 128.0 GB of memory, yielding a 2.0 GB per core ratio. Operating on the AWS Nitro hypervisor, this instance lacks local storage but provides a 30 Gbps baseline network bandwidth. Benchmark data highlights top-tier multi-core performance, exceptional memory bandwidth, and superior database and Redis SET operations. While single-core speeds are average, its multi-threaded capabilities excel in software compilation, physics simulations, and static web serving. This hardware profile offers high resource density and efficiency for parallelized, compute-heavy workloads.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      4.9Score
      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) 14,975,920 ops/sec 1,919,289 ops/sec 7.9 50.00% 50.00% +180.00%
      Redis RPS (pipeline=16, SET) 83,809,794 ops/sec 11,728,058 ops/sec 7 20.00% 20.00% +48.00%
      PassMark Memory Mark (composite) 3,321 2,416 1.4 10.00% 10.00% +3.40%
      Memory bandwidth (read, 16 MB ~ L3) 523,770 MB/sec 108,466 MB/sec 4.7 10.00% 10.00% +17.00%
      PassMark single-thread CPU 1,943 Mops/s 2,365 Mops/s 0.79 10.00% 10.00% -2.30%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,892

      Geekbench Multi-Core

      Score: 25,571

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 44,079
      Compression
      		 425,790
      Encryption
      		 12,134
      Extended Instructions
      		 56,255
      Floating Point Maths
      		 387,803
      Integer Maths
      		 333,800
      Physics
      		 14,967
      Prime Numbers
      		 632
      Single Threaded
      		 1,943
      String Sorting
      		 291,013

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 3,321
      Database Operations
      		 46,813
      Memory Latency
      		 48
      Memory Read Cached
      		 21,204
      Memory Read Uncached
      		 19,573
      Memory Write
      		 21,276

      Stress-ng Stressors

      CPU integerSingleMultiScaling
      atomic
      		 149.14 11.93 0.08×
      bitops
      		 144,681 9,250,015 63.93×
      branch
      		 227,032 14,513,450 63.93×
      funccall
      		 1,971 125,966 63.93×
      funcret
      		 33,862 1,852,018 54.69×
      hash
      		 155,617 9,945,401 63.91×
      intmath
      		 32,985 2,097,201 63.58×
      nop
      		 459,381 29,379,042 63.95×
      prime
      		 499,432 31,962,064 64.00×
      rotate
      		 134,244 8,549,943 63.69×
      str
      		 752,390 46,627,145 61.97×
      wcs
      		 205,311 12,937,340 63.01×
      CryptographySingleMultiScaling
      crypt
      		 3,460 221,468 64.00×
      CompressionSingleMultiScaling
      jpeg
      		 741.38 43,348 58.47×
      zlib
      		 28.47 2,479 87.09×
      HypervisorSingleMultiScaling
      clock
      		 44,754 366,746 8.19×
      clone
      		 337.73 13,714 40.61×
      context
      		 3,421 221,000 64.61×
      cpu-sched
      		 54.21 4,168 76.88×
      eventfd
      		 112,047 2,360,746 21.07×
      fault
      		 23,379 376,083 16.09×
      fork
      		 5,466 71,224 13.03×
      getrandom
      		 61,520 3,975,624 64.62×
      hrtimers
      		 381,399 7,634,628 20.02×
      mprotect
      		 1,349,132 23,461,975 17.39×
      mtx
      		 9,471,947 2,996,923,492 316.40×
      munmap
      		 3,964 109,386 27.59×
      null
      		 591,127 38,344,636 64.87×
      pipe
      		 998,928 36,545,349 36.58×
      priv-instr
      		 922,912 12,588,598 13.64×
      resched
      		 3,634,416 7,199,735 1.98×
      switch
      		 203,391 34,172,837 168.02×
      timermix
      		 563,138 35,925,242 63.79×
      tlb-shootdown
      		 17,945 279,141 15.56×
      vdso
      		 45,064,592 2,870,597,083 63.70×
      vfork
      		 38,023 264,037 6.94×
      yield
      		 84,553,542 90,818,862 1.07×
      zero
      		 2,796,258 179,629,787 64.24×
      CPU float/SIMDSingleMultiScaling
      eigen
      		 1,936 123,712 63.91×
      expmath
      		 366.57 23,432 63.92×
      fma
      		 775,689 44,168,149 56.94×
      fp
      		 153.09 9,781 63.89×
      fractal
      		 7.8 489.95 62.81×
      hyperbolic
      		 354.05 22,628 63.91×
      logmath
      		 429.33 27,441 63.92×
      matrix
      		 6,600 421,798 63.91×
      matrix-3d
      		 1,354 20,046 14.80×
      monte-carlo
      		 236.98 15,280 64.48×
      mpfr
      		 1,440 91,949 63.84×
      powmath
      		 248.95 15,910 63.91×
      trig
      		 475.76 30,439 63.98×
      veccmp
      		 21,811 1,394,462 63.93×
      vecfp
      		 1,241 75,731 61.02×
      vecmath
      		 4,444 284,018 63.91×
      vecshuf
      		 883.81 55,962 63.32×
      vecwide
      		 25,023 1,483,297 59.28×
      AlgorithmsSingleMultiScaling
      bitonicsort
      		 9 575.99 64.00×
      bsearch
      		 341.46 21,842 63.97×
      bubblesort
      		 1.2 76.8 64.00×
      fibsearch
      		 364.76 23,332 63.97×
      heapsort
      		 13 831.78 63.98×
      hsearch
      		 8,453 543,235 64.27×
      insertionsort
      		 6.8 426.4 62.71×
      malloc
      		 2,919,962 135,548,497 46.42×
      mcontend
      		 244.68 131,683 538.18×
      mergesort
      		 33.2 2,134 64.27×
      qsort
      		 22.2 1,423 64.11×
      skiplist
      		 6,754 431,532 63.90×
      tree
      		 1.4 52.45 37.46×
      MemorySingleMultiScaling
      cache
      		 429,333 999,757 2.33×
      cachehammer
      		 1,964,165 44,763,018 22.79×
      cacheline
      		 62.66 4,996 79.74×
      l1cache
      		 329.94 20,771 62.95×
      memcpy
      		 687.37 43,126 62.74×
      memrate
      		 5.73 66.55 11.61×
      memthrash
      		 238.04 529.38 2.22×
      ptr-chase
      		 9,750,140 549,582,393 56.37×
      spinmem
      		 3,698 61,299 16.58×
      stream
      		 126.47 463,768 3667.02×
      vm
      		 145,960 3,429,504 23.50×

      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

      PostgreSQL heavy read-only throughput

      Alternatives

      Servers of the Same Family

      INSTANCEvCPUsMEMORYAccelerators
      c8g.medium 12 GiB0
      c8g.large 24 GiB0
      c8g.xlarge 48 GiB0
      c8g.2xlarge 816 GiB0
      c8g.4xlarge 1632 GiB0
      c8g.8xlarge 3264 GiB0
      c8g.12xlarge 4896 GiB0

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      c8g.16xlarge FAQs