c8gb.4xlarge by Amazon Web Services

c8gb.4xlarge is a Compute optimized [AWS Graviton processors] Gen8 4xlarge server offered by Amazon Web Services with 16 vCPUs, 32 GiB of memory and 0 GB of storage. The pricing starts at 0.2835 USD per hour.
16 vCPU
32 GiB Memory
Spare SCore
27,304
(All-cores)
1,707
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c8gb.4xlarge
Description
Compute optimized [AWS Graviton processors] Gen8 4xlarge
Family
c8gb
Hw Virt
Status
active
Observed At
2026-09-10T16:38:15.709685

Availability

REGION / IDSPOTONDEMAND
Oregon (US) / us-west-2
0.297575 USD/h 0.948 USD/h
Northern Virgina (US) / us-east-1
0.31525 USD/h 0.948 USD/h

Processor

vCPUs
16
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
16
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
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
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
16
Scalability
100

System Resources and Accelerators

MEMORY
Memory Amount
32 GiB
Memory Amount Actual
32 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
      33.333 Gbps
      Network Speed Max
      33.333 Gbps
      Network Storage Speed Baseline
      25 Gbps
      Network Storage Speed Max
      25 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      An ARMv9 compute-optimized instance delivering dedicated physical cores and top-tier memory bandwidth for multi-threaded workloads.

      Compute OptimizedGeneral Purpose

      Amazon Web Services c8gb.4xlarge is a compute-optimized instance powered by a 16-core AWS Graviton Neoverse-V2 ARMv9 processor running at 2.8 GHz. Operating on the Nitro hypervisor, it features 16 dedicated vCPUs, 32.0 GB of RAM, and a 33 Gbps baseline network speed, with no local storage or GPU accelerators. Benchmarks reveal top-tier memory performance, with a strong PassMark memory score and high uncached memory bandwidth. CPU performance is stable, showing strong multi-threaded bzip3 decompression and database operations, though medium-model LLM prompt processing is relatively weak. This server is highly cost-efficient for compute-intensive, memory-bandwidth-sensitive workloads such as multi-threaded applications, web serving, and software compilation.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1.58Score
      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) 3,117,450 ops/sec 1,917,397 ops/sec 1.63 50.00% 50.00% +27.70%
      Redis RPS (pipeline=16, SET) 18,772,837 ops/sec 11,681,410 ops/sec 1.61 20.00% 20.00% +9.99%
      PassMark Memory Mark (composite) 3,216 2,418 1.33 10.00% 10.00% +2.89%
      Memory bandwidth (read, 16 MB ~ L3) 334,019 MB/sec 108,140 MB/sec 3.09 10.00% 10.00% +11.90%
      PassMark single-thread CPU 1,943 Mops/s 2,365 Mops/s 0.821 10.00% 10.00% -1.95%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,894

      Geekbench Multi-Core

      Score: 15,875

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 14601
      Compression
      		 106396
      Encryption
      		 3025
      Extended Instructions
      		 14765
      Floating Point Maths
      		 97022
      Integer Maths
      		 83497
      Physics
      		 4918
      Prime Numbers
      		 264
      Single Threaded
      		 1943
      String Sorting
      		 73986

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 3216
      Database Operations
      		 24175
      Memory Latency
      		 45
      Memory Read Cached
      		 20482
      Memory Read Uncached
      		 20083
      Memory Write
      		 21298

      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.8xlarge 3264 GiB0
      c8gb.12xlarge 4896 GiB0
      c8gb.16xlarge 64128 GiB0

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      c8gb.4xlarge FAQs