c9g.4xlarge by Amazon Web Services

c9g.4xlarge is a Compute optimized [AWS Graviton processors] Gen9 4xlarge server offered by Amazon Web Services with 16 vCPUs, 32 GiB of memory and 0 GB of storage. The pricing starts at 0.1478 USD per hour.
16 vCPU
32 GiB Memory
Spare SCore
32,048
(All-cores)
2,006
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c9g.4xlarge
Description
Compute optimized [AWS Graviton processors] Gen9 4xlarge
Family
Compute Optimized
Series
c9g
Hw Virt
Average Time To Start
6
Status
active
Observed At
2026-11-14T01:02:04.731127

Availability

Region / IDSpotOndemand
(MY) / ap-southeast-5
0.2058 USD/h
0.679 USD/h
Ohio (US) / us-east-2
0.1789 USD/h
0.6931 USD/h
Oregon (US) / us-west-2
0.275125 USD/h
0.6955 USD/h
Northern Virgina (US) / us-east-1
0.281125 USD/h
0.6955 USD/h
Seoul (KR) / ap-northeast-2
0.258633 USD/h
0.7827 USD/h
Frankfurt (DE) / eu-central-1
0.3505 USD/h
0.7909 USD/h
Singapore (SG) / ap-southeast-1
0.4093 USD/h
0.799 USD/h
Tokyo (JP) / ap-northeast-1
0.392133 USD/h
0.8725 USD/h

Processor

vCPUs
16
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
16
CPU Speed
3.3 GHz
CPU Architecture
arm64
CPU Manufacturer
AWS
CPU Family
ARMv9
CPU Model
Neoverse-V3
CPU L1D Cache
64 KiB
CPU L1D Cache Total
1 MiB
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
48 MiB
CPU L3 Cache Total
48 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, sb, paca, pacg, dcpodp, sve2, sveaes, svepmull, svebitperm, svesha3, flagm2, frint, svei8mm, svebf16, i8mm, bf16, dgh, rng, bti, ecv, afp, wfxt
Ecpus
16
Scalability
100

System Resources and Accelerators

Memory
Memory Amount
32 GiB
Memory Amount Actual
32 GiB
Accelerators
Accelerator Count
0
Accelerator Memory Min
0 MiB
Accelerator Memory Total
0 MiB
Accelerators
    Storage
    Storage Size
    0 GB
    Storages
      Compatible Storage IDs
      standard, gp2, gp3, st1, sc1, io1, io2
      Network
      Network Speed Baseline
      8.5 Gbps
      Network Speed Max
      17 Gbps
      Network Storage Speed Baseline
      6 Gbps
      Network Storage Speed Max
      12 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      A compute-optimized ARM64 cloud instance with 16 dedicated cores and fast single-core throughput for web serving, database, and compression workloads.

      Amazon Web Services c9g.4xlarge is a compute-optimized arm64 cloud instance powered by 16 physical cores of AWS ARMv9 Neoverse-V3 architecture running at 3.3 GHz on the Nitro hypervisor. It features 32.0 GB of memory, providing 2.0 GB per vCPU, along with an 8 Gbps baseline network bandwidth. The instance lacks bundled local storage and discrete GPU accelerators. Benchmarks highlight top-tier performance in single-core tasks, single-threaded compression, PassMark memory bandwidth, and small-model LLM text generation, alongside strong results in multi-threaded decompression, database operations, and static web serving. Mid-range scores are registered in software compilation, ray tracing, and stress-ng CPU tests. By eliminating hyperthreading overhead, the 1:2 vCPU-to-RAM design delivers efficient execution for CPU-intensive workloads such as web serving, text processing, data compression, and database tasks.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      2.5Score
      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) 5,721,361 ops/sec 1,933,252 ops/sec 3 50.00% 50.00% +73.00%
      Redis RPS (pipeline=16, SET) 33,111,419 ops/sec 11,814,424 ops/sec 2.8 20.00% 20.00% +23.00%
      PassMark Memory Mark (composite) 4,297 2,408 1.8 10.00% 10.00% +6.10%
      Memory bandwidth (read, 16 MB ~ L3) 265,653 MB/sec 108,674 MB/sec 2.5 10.00% 10.00% +9.60%
      PassMark single-thread CPU 2,460 Mops/s 2,365 Mops/s 1 10.00% 10.00% 0.00%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,353

      Geekbench Multi-Core

      Score: 19,897

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 20,554
      Compression
      		 149,275
      Encryption
      		 4,768
      Extended Instructions
      		 21,531
      Floating Point Maths
      		 122,145
      Integer Maths
      		 97,830
      Physics
      		 6,169
      Prime Numbers
      		 330
      Single Threaded
      		 2,460
      String Sorting
      		 86,204

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 4,297
      Database Operations
      		 29,409
      Memory Latency
      		 28
      Memory Read Cached
      		 24,842
      Memory Read Uncached
      		 24,532
      Memory Write
      		 24,761

      Stress-ng Stressors

      CPU integerSingleMultiScaling
      atomic
      		 182.63 78.91 0.43×
      bitops
      		 165,112 2,641,552 16.00×
      branch
      		 319,995 5,110,268 15.97×
      funccall
      		 2,278 36,397 15.97×
      funcret
      		 39,754 635,644 15.99×
      hash
      		 181,210 2,891,983 15.96×
      intmath
      		 39,712 633,428 15.95×
      nop
      		 429,499 6,856,116 15.96×
      prime
      		 600,381 9,581,590 15.96×
      rotate
      		 148,995 2,376,722 15.95×
      str
      		 934,147 14,967,107 16.02×
      wcs
      		 271,242 4,429,037 16.33×
      CryptographySingleMultiScaling
      crypt
      		 4,288 68,390 15.95×
      CompressionSingleMultiScaling
      jpeg
      		 922.55 14,741 15.98×
      zlib
      		 33.87 769.58 22.72×
      HypervisorSingleMultiScaling
      clock
      		 54,687 548,644 10.03×
      clone
      		 420.3 4,578 10.89×
      context
      		 3,950 65,764 16.65×
      cpu-sched
      		 74.61 1,003 13.44×
      eventfd
      		 150,648 1,426,108 9.47×
      fault
      		 29,153 300,000 10.29×
      fork
      		 7,497 63,133 8.42×
      getrandom
      		 73,867 1,181,967 16.00×
      hrtimers
      		 1,999,496 2,285,275 1.14×
      mprotect
      		 1,440,867 8,875,131 6.16×
      mtx
      		 9,778,227 856,944,399 87.64×
      munmap
      		 5,491 67,090 12.22×
      null
      		 674,894 11,161,551 16.54×
      pipe
      		 1,366,918 14,617,396 10.69×
      priv-instr
      		 1,128,233 14,021,838 12.43×
      resched
      		 7,255,158 4,121,801 0.57×
      switch
      		 271,665 11,055,778 40.70×
      timermix
      		 589,981 8,496,548 14.40×
      tlb-shootdown
      		 20,972 134,235 6.40×
      vdso
      		 64,248,660 1,006,157,154 15.66×
      vfork
      		 68,403 419,883 6.14×
      yield
      		 26,789,833 28,602,383 1.07×
      zero
      		 3,268,172 53,068,457 16.24×
      CPU float/SIMDSingleMultiScaling
      eigen
      		 2,242 35,792 15.97×
      expmath
      		 424.79 6,783 15.97×
      fma
      		 853,418 13,625,851 15.97×
      fp
      		 175.03 2,809 16.05×
      fractal
      		 9.2 145 15.76×
      hyperbolic
      		 407.97 6,512 15.96×
      logmath
      		 490.87 7,835 15.96×
      matrix
      		 7,984 127,464 15.96×
      matrix-3d
      		 1,480 9,697 6.55×
      monte-carlo
      		 269.59 4,404 16.34×
      mpfr
      		 1,887 30,111 15.96×
      powmath
      		 281.74 4,500 15.97×
      trig
      		 553.23 8,836 15.97×
      veccmp
      		 26,319 420,393 15.97×
      vecfp
      		 1,859 29,600 15.92×
      vecmath
      		 4,806 76,820 15.98×
      vecshuf
      		 1,029 16,421 15.95×
      vecwide
      		 30,042 516,957 17.21×
      AlgorithmsSingleMultiScaling
      bitonicsort
      		 11.2 179.2 16.00×
      bsearch
      		 421.78 6,732 15.96×
      bubblesort
      		 1.4 22.4 16.00×
      fibsearch
      		 413.24 6,612 16.00×
      heapsort
      		 15.4 245.8 15.96×
      hsearch
      		 10,821 173,376 16.02×
      insertionsort
      		 6.4 125.4 19.59×
      malloc
      		 4,582,209 52,153,855 11.38×
      mcontend
      		 301 38,425 127.66×
      mergesort
      		 38.6 613.98 15.91×
      qsort
      		 26.8 426.39 15.91×
      skiplist
      		 7,675 122,367 15.94×
      tree
      		 2.2 25.59 11.63×
      MemorySingleMultiScaling
      cache
      		 682,918 1,392,126 2.04×
      cachehammer
      		 2,368,468 33,584,222 14.18×
      cacheline
      		 88.94 1,604 18.03×
      l1cache
      		 389.67 6,227 15.98×
      memcpy
      		 1,017 15,333 15.08×
      memrate
      		 6.53 30.15 4.62×
      memthrash
      		 290.31 564.34 1.94×
      ptr-chase
      		 36,252,233 212,388,144 5.86×
      spinmem
      		 4,684 18,377 3.92×
      stream
      		 107.66 9,291 86.30×
      vm
      		 196,837 1,577,451 8.01×

      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
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      c6gd.medium 12 GiB0
      c6gn.medium 12 GiB0
      c7a.medium 12 GiB0
      c7g.medium 12 GiB0
      c7gd.medium 12 GiB0
      c7gn.medium 12 GiB0

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      c9g.4xlarge FAQs