c9g.12xlarge by Amazon Web Services

c9g.12xlarge is a Compute optimized [AWS Graviton processors] Gen9 12xlarge server offered by Amazon Web Services with 48 vCPUs, 96 GiB of memory and 0 GB of storage. The pricing starts at 0.5053 USD per hour.
48 vCPU
96 GiB Memory
Spare SCore
96,125
(All-cores)
2,010
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c9g.12xlarge
Description
Compute optimized [AWS Graviton processors] Gen9 12xlarge
Family
c9g
Hw Virt
Average Time To Start
6.67
Status
active
Observed At
2026-09-30T20:21:18.793465Z

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.611267 USD/h 2.0794 USD/h
Northern Virgina (US) / us-east-1
0.713775 USD/h 2.0866 USD/h
Oregon (US) / us-west-2
0.809 USD/h 2.0866 USD/h
Frankfurt (DE) / eu-central-1
0.869067 USD/h 2.3726 USD/h
Tokyo (JP) / ap-northeast-1
1.1791 USD/h 2.6174 USD/h

Processor

vCPUs
48
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
48
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
3 MiB
CPU L1I Cache
64 KiB
CPU L1I Cache Total
3 MiB
CPU L2 Cache
2 MiB
CPU L2 Cache Total
96 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
47.8
Scalability
99.58

System Resources and Accelerators

MEMORY
Memory Amount
96 GiB
Memory Amount Actual
95 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
      25 Gbps
      Network Speed Max
      25 Gbps
      Network Storage Speed Baseline
      18 Gbps
      Network Storage Speed Max
      18 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      A dedicated 48-core ARMv9 compute instance delivering high-throughput memory bandwidth and top-tier performance for web serving and compilation workloads.

      Compute OptimizedGeneral Purpose

      The Amazon Web Services c9g.12xlarge is an arm64 compute-optimized server instance powered by the AWS Graviton Neoverse-V3 processor. It features 48 dedicated physical cores and 48 vCPUs running at 3.3 GHz, paired with 96.0 GB of memory, resulting in a 2.0 GB per core ratio. Operating on the Nitro hypervisor, the instance provides 25 Gbps of baseline network bandwidth but lacks local storage and GPU accelerators. Benchmark results place the c9g.12xlarge in the top tier for software compilation, Redis SET operations, and static web serving throughput, while single-core stress-ng performance remains average. This hardware profile is suited for compute-intensive tasks, database operations, and multi-threaded data processing workloads that benefit from dedicated ARMv9 cores without requiring local storage.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      5.26Score
      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) 16,975,672 ops/sec 1,916,704 ops/sec 8.86 50.00% 50.00% +198.00%
      Redis RPS (pipeline=16, SET) 99,090,988 ops/sec 11,642,227 ops/sec 8.51 20.00% 20.00% +53.50%
      PassMark Memory Mark (composite) 4,685 2,418 1.94 10.00% 10.00% +6.85%
      Memory bandwidth (read, 16 MB ~ L3) 221,604 MB/sec 108,322 MB/sec 2.05 10.00% 10.00% +7.44%
      PassMark single-thread CPU 2,468 Mops/s 2,365 Mops/s 1.04 10.00% 10.00% +0.39%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,387

      Geekbench Multi-Core

      Score: 28,306

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 49501
      Compression
      		 448182
      Encryption
      		 14330
      Extended Instructions
      		 64651
      Floating Point Maths
      		 367089
      Integer Maths
      		 293662
      Physics
      		 11434
      Prime Numbers
      		 596
      Single Threaded
      		 2468
      String Sorting
      		 250311

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 4685
      Database Operations
      		 47371
      Memory Latency
      		 26
      Memory Read Cached
      		 24866
      Memory Read Uncached
      		 24698
      Memory Write
      		 25061

      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.16xlarge 64128 GiB0

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      c9g.12xlarge FAQs