c8gn.16xlarge by Amazon Web Services

c8gn.16xlarge is a Compute optimized [AWS Graviton processors] [Network and EBS optimized] Gen8 16xlarge server offered by Amazon Web Services with 64 vCPUs, 128 GiB of memory and 0 GB of storage. The pricing starts at 0.3701 USD per hour.
64 vCPU
128 GiB Memory
Spare SCore
109,166
(All-cores)
1,707
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c8gn.16xlarge
Description
Compute optimized [AWS Graviton processors] [Network and EBS optimized] Gen8 16xlarge
Family
c8gn
Hw Virt
Status
active
Observed At
2026-10-16T13:39:42.846901

Availability

REGION / IDSPOTONDEMAND
(MY) / ap-southeast-5
2.021933 USD/h 3.7011 USD/h
(TH) / ap-southeast-7
1.353467 USD/h 3.7011 USD/h
Hyderabad (IN) / ap-south-2
0.871467 USD/h 3.7888 USD/h
Ohio (US) / us-east-2
0.950767 USD/h 3.792 USD/h
Northern Virgina (US) / us-east-1
0.88792 USD/h 3.792 USD/h
Oregon (US) / us-west-2
1.071425 USD/h 3.792 USD/h
Mumbai (IN) / ap-south-1
1.628533 USD/h 3.792 USD/h
Stockholm (SE) / eu-north-1
0.5867 USD/h 4.073 USD/h
Calgary (CA) / ca-west-1
1.1403 USD/h 4.1434 USD/h
Quebec (CA) / ca-central-1
1.113267 USD/h 4.1434 USD/h
Aragón (ES) / eu-south-2
0.5723 USD/h 4.2803 USD/h
Seoul (KR) / ap-northeast-2
3.011425 USD/h 4.2835 USD/h
Dublin (IE) / eu-west-1
1.412533 USD/h 4.2835 USD/h
Frankfurt (DE) / eu-central-1
0.994867 USD/h 4.3187 USD/h
Jakarta (ID) / ap-southeast-3
1.097967 USD/h 4.3539 USD/h
Singapore (SG) / ap-southeast-1
1.109167 USD/h 4.3539 USD/h
London (GB) / eu-west-2
1.026175 USD/h 4.4941 USD/h
Paris (FR) / eu-west-3
1.3572 USD/h 4.4941 USD/h
Milan (IT) / eu-south-1
0.860067 USD/h 4.5293 USD/h
United Arab Emirates / me-central-1
1.9275 USD/h 4.7085 USD/h
California (US) / us-west-1
0.96295 USD/h 4.7398 USD/h
Zurich (CH) / eu-central-2
1.27835 USD/h 4.7584 USD/h
Tokyo (JP) / ap-northeast-1
1.7697 USD/h 4.775 USD/h
Melbourne (AU) / ap-southeast-4
2.0195 USD/h 4.9491 USD/h
Sydney (AU) / ap-southeast-2
1.369633 USD/h 4.951 USD/h
Hong Kong (HK) / ap-east-1
1.27165 USD/h 5.0208 USD/h
Cape Town (ZA) / af-south-1
0.9338 USD/h 5.0982 USD/h
Sao Paulo (BR) / sa-east-1
2.846567 USD/h 5.8285 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
      200 Gbps
      Network Speed Max
      200 Gbps
      Network Storage Speed Baseline
      40 Gbps
      Network Storage Speed Max
      40 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      An ARM-based compute-optimized instance featuring sixty-four dedicated cores, high-speed memory bandwidth, and two-hundred gigabits per second baseline network throughput.

      Compute Optimized

      Amazon Web Services c8gn.16xlarge is an ARM64 compute-optimized instance powered by 64 dedicated AWS Graviton Neoverse-V2 cores running at 2.8 GHz. It features 128.0 GB of memory, 200 Gbps baseline network bandwidth, and operates on the Nitro hypervisor without local storage or GPU accelerators. Benchmarks indicate top-tier multi-core and memory bandwidth performance, with uncached large-block read bandwidth reaching 466.64 GB/sec and static web serving throughput at 116.84 GB/sec. However, single-core performance is average. The lack of local storage and a low memory-to-core ratio represent key tradeoffs. This instance delivers high resource density and qualitative cost efficiency for parallelized workloads, making it highly suitable for software compilation, multi-threaded data decompression, high-throughput database operations, and static web serving.

      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) 14,532,671 ops/sec 1,918,343 ops/sec 7.9 50.00% 50.00% +180.00%
      Redis RPS (pipeline=16, SET) 83,554,735 ops/sec 11,704,734 ops/sec 7 20.00% 20.00% +48.00%
      PassMark Memory Mark (composite) 3,452 2,416 1.5 10.00% 10.00% +4.10%
      Memory bandwidth (read, 16 MB ~ L3) 533,064 MB/sec 108,420 MB/sec 4.8 10.00% 10.00% +17.00%
      PassMark single-thread CPU 1,944 Mops/s 2,365 Mops/s 0.79 10.00% 10.00% -2.30%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,894

      Geekbench Multi-Core

      Score: 25,974

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 43,987
      Compression
      		 418,785
      Encryption
      		 12,098
      Extended Instructions
      		 56,171
      Floating Point Maths
      		 387,932
      Integer Maths
      		 333,914
      Physics
      		 15,918
      Prime Numbers
      		 683
      Single Threaded
      		 1,944
      String Sorting
      		 292,560

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 3,452
      Database Operations
      		 47,341
      Memory Latency
      		 44
      Memory Read Cached
      		 21,016
      Memory Read Uncached
      		 20,146
      Memory Write
      		 21,297

      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
      c8gn.medium 12 GiB0
      c8gn.large 24 GiB0
      c8gn.xlarge 48 GiB0
      c8gn.2xlarge 816 GiB0
      c8gn.4xlarge 1632 GiB0
      c8gn.8xlarge 3264 GiB0
      c8gn.12xlarge 4896 GiB0

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      c8gn.16xlarge FAQs