c9g.16xlarge by Amazon Web Services

c9g.16xlarge is a Compute optimized [AWS Graviton processors] Gen9 16xlarge server offered by Amazon Web Services with 64 vCPUs, 128 GiB of memory and 0 GB of storage. The pricing starts at 0.6056 USD per hour.
64 vCPU
128 GiB Memory
Spare SCore
126,149
(All-cores)
2,007
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c9g.16xlarge
Description
Compute optimized [AWS Graviton processors] Gen9 16xlarge
Family
c9g
Hw Virt
Average Time To Start
5.67
Status
active
Observed At
2026-09-29T09:30:55.311547Z

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.8092 USD/h 2.7725 USD/h
Northern Virgina (US) / us-east-1
0.9569 USD/h 2.7821 USD/h
Oregon (US) / us-west-2
1.009825 USD/h 2.7821 USD/h
Frankfurt (DE) / eu-central-1
1.095933 USD/h 3.1635 USD/h
Tokyo (JP) / ap-northeast-1
1.189967 USD/h 3.4899 USD/h

Processor

vCPUs
64
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
64
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
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
48 MiB
CPU L3 Cache Total
96 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
62.8
Scalability
98.12

System Resources and Accelerators

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

      CPU and System Topology

      Server Description

      A dedicated 64-core ARMv9 compute instance delivering top-tier multi-threaded performance, high memory bandwidth, and 34 Gbps networking for demanding workloads.

      Compute OptimizedGeneral Purpose

      Amazon Web Services c9g.16xlarge is a compute-optimized instance featuring 64 dedicated physical cores powered by the 3.3 GHz AWS Graviton Neoverse-V3 processor. Built on the ARMv9 architecture and the AWS Nitro hypervisor, it provides 128.0 GB of system memory, resulting in a 2.0 GB per core ratio. The instance lacks local storage and dedicated GPUs, relying on a 34 Gbps baseline network bandwidth. In benchmarks, the c9g.16xlarge delivers top-tier performance in multi-threaded decompression, software compilation, and database operations, alongside strong multi-core CPU and memory bandwidth capabilities. Conversely, single-core performance and LLM inference speeds fall into the average tier. This instance is highly suited for multi-threaded compute workloads, static web serving, and software development pipelines.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      6.74Score
      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) 21,899,341 ops/sec 1,919,696 ops/sec 11.4 50.00% 50.00% +238.00%
      Redis RPS (pipeline=16, SET) 128,991,809 ops/sec 11,736,081 ops/sec 11 20.00% 20.00% +61.50%
      PassMark Memory Mark (composite) 4,705 2,418 1.95 10.00% 10.00% +6.91%
      Memory bandwidth (read, 16 MB ~ L3) 440,996 MB/sec 108,260 MB/sec 4.07 10.00% 10.00% +15.10%
      PassMark single-thread CPU 2,463 Mops/s 2,365 Mops/s 1.04 10.00% 10.00% +0.39%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,328

      Geekbench Multi-Core

      Score: 29,666

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 60579
      Compression
      		 592516
      Encryption
      		 18932
      Extended Instructions
      		 85477
      Floating Point Maths
      		 485359
      Integer Maths
      		 388330
      Physics
      		 18879
      Prime Numbers
      		 1087
      Single Threaded
      		 2463
      String Sorting
      		 338138

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 4705
      Database Operations
      		 58282
      Memory Latency
      		 26
      Memory Read Cached
      		 24828
      Memory Read Uncached
      		 24581
      Memory Write
      		 24999

      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

      INSTANCEvCPUsMEMORYGPUs
      c9g.medium 12 GiB0
      c9g.large 24 GiB0
      c9g.xlarge 48 GiB0
      c9g.2xlarge 816 GiB0
      c9g.4xlarge 1632 GiB0
      c9g.8xlarge 3264 GiB0
      c9g.12xlarge 4896 GiB0

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      c9g.16xlarge FAQs