logo

ecs.c6r.4xlarge by Alibaba Cloud

ecs.c6r.4xlarge is a ecs.c6r family (16 vCPUs, 32 GiB RAM, 0 GB storage) server offered by Alibaba Cloud with 16 vCPUs, 32 GiB of memory and 0 GB of storage. The pricing starts at 0.283 USD per hour.
16 vCPU
32 GiB Memory
Spare SCore
28612
(All-cores)
1790
(Single-core)

Specifications

Server Metadata

Vendor ID
alicloud
Name
ecs.c6r.4xlarge
Description
ecs.c6r family (16 vCPUs, 32 GiB RAM, 0 GB storage)
Family
ecs.c6r
Hw Virt
Status
active
Observed At
2026-07-31T11:07:29.300762

Availability

REGION / IDSPOTONDEMAND
Beijing (CN) / cn-beijing
- 0.3859 USD/h
Hangzhou (CN) / cn-hangzhou
- 0.3859 USD/h
Shanghai (CN) / cn-shanghai
- 0.3859 USD/h
Shenzhen (CN) / cn-shenzhen
- 0.3859 USD/h
Frankfurt (DE) / eu-central-1
- 0.5491 USD/h
Singapore (SG) / ap-southeast-1
0.283 USD/h 0.6737 USD/h

Processor

vCPUs
16
Hypervisor
KVM
CPU Allocation
Dedicated
CPU Cores
16
CPU Speed
2.8 GHz
CPU Architecture
arm64
CPU Manufacturer
Ampere
CPU Family
Ampere Altra
CPU Model
Ampere Altra
CPU L1D Cache
0 KiB
CPU L1D Cache Total
0 KiB
CPU L1I Cache
0 KiB
CPU L1I Cache Total
0 KiB
CPU L2 Cache
0 KiB
CPU L2 Cache Total
0 KiB
CPU Flags
fp, asimd, evtstrm, aes, pmull, sha1, sha2, crc32, atomics, fphp, asimdhp, cpuid, asimdrdm, lrcpc, dcpop, asimddp, ssbs
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
      5 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      An ARM64 compute-optimized instance offering dedicated physical cores and balanced multi-threaded performance for parallel workloads.

      Compute Optimized

      Alibaba Cloud ecs.c6r.4xlarge is an ARM64 compute-optimized server instance powered by a 16-core Ampere Altra processor running at 2.8 GHz. It features 32.0 GB of RAM, providing a 1:2 vCPU-to-RAM ratio, and operates without local storage or GPU accelerators. Utilizing a KVM hypervisor, the instance delivers dedicated single-threaded cores without hyperthreading. Benchmarks indicate average multi-core and memory bandwidth performance, with a multi-core Geekbench score of 9534.0 and a static web serving throughput of 18.56 GB/sec. However, single-core and cryptographic performance are relatively weak. This instance offers qualitative cost efficiency for highly parallelized, compute-intensive workloads. It is best suited for static web serving, software compilation, Redis deployments, and lightweight machine learning inference.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1.02Score
      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) 2,137,804 ops/sec 1,896,415 ops/sec 1.13 50.00% 50.00% +6.30%
      Redis RPS (pipeline=16, SET) 12,197,501 ops/sec 11,539,523 ops/sec 1.06 20.00% 20.00% +1.17%
      PassMark Memory Mark (composite) 1,919 2,411 0.796 10.00% 10.00% -2.26%
      Memory bandwidth (read, 16 MB ~ L3) 141,808 MB/sec 107,368 MB/sec 1.32 10.00% 10.00% +2.82%
      PassMark single-thread CPU 1,335 Mops/s 2,363 Mops/s 0.565 10.00% 10.00% -5.55%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,104

      Geekbench Multi-Core

      Score: 9,534

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 11528
      Compression
      		 91349
      Encryption
      		 2559
      Extended Instructions
      		 11951
      Floating Point Maths
      		 57629
      Integer Maths
      		 75920
      Physics
      		 1764
      Prime Numbers
      		 95
      Single Threaded
      		 1335
      String Sorting
      		 54721

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 1919
      Database Operations
      		 9603
      Memory Latency
      		 68
      Memory Read Cached
      		 11398
      Memory Read Uncached
      		 9038
      Memory Write
      		 15055

      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
      ecs.c6r.large 24 GiB0
      ecs.c6r.xlarge 48 GiB0
      ecs.c6r.2xlarge 816 GiB0
      ecs.c6r.8xlarge 3264 GiB0
      ecs.c6r.16xlarge 64128 GiB0

      Similar Servers

      INSTANCEVENDORvCPUsMEMORYGPUs

      ecs.c6r.4xlarge FAQs