c8gb.16xlarge by Amazon Web Services

c8gb.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 0.6175 USD per hour.
64 vCPU
128 GiB Memory
Spare SCore
109,158
(All-cores)
1,706
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c8gb.16xlarge
Description
Compute optimized [AWS Graviton processors] Gen8 16xlarge
Family
c8gb
Hw Virt
Status
active
Observed At
2026-09-10T13:38:53.592995

Availability

REGION / IDSPOTONDEMAND
Northern Virgina (US) / us-east-1
1.602425 USD/h 3.792 USD/h
Oregon (US) / us-west-2
1.0919 USD/h 3.792 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, 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
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
      133.333 Gbps
      Network Speed Max
      133.333 Gbps
      Network Storage Speed Baseline
      100 Gbps
      Network Storage Speed Max
      100 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      An ARM64 compute-optimized instance featuring sixty-four dedicated cores and exceptional memory bandwidth for high-throughput parallel workloads.

      Compute OptimizedGeneral Purpose

      The Amazon Web Services c8gb.16xlarge is an ARM64 compute-optimized instance powered by 64 dedicated physical cores of the AWS Graviton ARMv9 Neoverse-V2 processor running at 2.8 GHz. Operating on the Nitro hypervisor, it features 128.0 GB of memory and a baseline network bandwidth of 133 Gbps, with no local storage or GPU. Benchmarks show top-tier performance in memory bandwidth, software compilation, database operations, and static web serving, alongside strong multi-core CPU capabilities. However, single-core tasks and small-model text generation show lower relative performance. This instance offers high compute density and qualitative cost efficiency for parallelized workloads, making it highly suitable for multi-threaded applications, software compilation, database management, and static web serving.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      4.34Score
      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) 12,457,804 ops/sec 1,917,397 ops/sec 6.5 50.00% 50.00% +155.00%
      Redis RPS (pipeline=16, SET) 70,210,460 ops/sec 11,681,410 ops/sec 6.01 20.00% 20.00% +43.10%
      PassMark Memory Mark (composite) 3,415 2,418 1.41 10.00% 10.00% +3.50%
      Memory bandwidth (read, 16 MB ~ L3) 534,067 MB/sec 108,140 MB/sec 4.94 10.00% 10.00% +17.30%
      PassMark single-thread CPU 1,942 Mops/s 2,365 Mops/s 0.821 10.00% 10.00% -1.95%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,890

      Geekbench Multi-Core

      Score: 25,948

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 44154
      Compression
      		 425306
      Encryption
      		 12132
      Extended Instructions
      		 56254
      Floating Point Maths
      		 387679
      Integer Maths
      		 333535
      Physics
      		 16339
      Prime Numbers
      		 685
      Single Threaded
      		 1942
      String Sorting
      		 291809

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 3415
      Database Operations
      		 47514
      Memory Latency
      		 46
      Memory Read Cached
      		 21184
      Memory Read Uncached
      		 19999
      Memory Write
      		 21219

      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

      INSTANCEvCPUsMEMORYGPUs
      c8gb.medium 12 GiB0
      c8gb.large 24 GiB0
      c8gb.xlarge 48 GiB0
      c8gb.2xlarge 816 GiB0
      c8gb.4xlarge 1632 GiB0
      c8gb.8xlarge 3264 GiB0
      c8gb.12xlarge 4896 GiB0

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      c8gb.16xlarge FAQs