ecs.cm4.4xlarge by Alibaba Cloud

ecs.cm4.4xlarge is a ecs.cm4 family (16 vCPUs, 64 GiB RAM, 0 GB storage) server offered by Alibaba Cloud with 16 vCPUs, 64 GiB of memory and 0 GB of storage. The pricing starts at 0.95 USD per hour.
16 vCPU
64 GiB Memory
Spare SCore
11,470
(All-cores)
1,150
(Single-core)

Specifications

Server Metadata

Vendor ID
alicloud
Name
ecs.cm4.4xlarge
Description
ecs.cm4 family (16 vCPUs, 64 GiB RAM, 0 GB storage)
Family
ecs.cm4
Hw Virt
Average Time To Start
8
Status
active
Observed At
2026-09-08T17:33:15.812466

Availability

REGION / IDSPOTONDEMAND
Virginia (US) / us-east-1
- 0.95 USD/h
Hong Kong (HK) / cn-hongkong
- 1.18 USD/h

Processor

vCPUs
16
Hypervisor
KVM
CPU Allocation
Dedicated
CPU Cores
16
CPU Speed
3.2 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
E5-2667 v4
CPU L1D Cache
32 KiB
CPU L1D Cache Total
256 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
256 KiB
CPU L2 Cache
256 KiB
CPU L2 Cache Total
2 MiB
CPU L3 Cache
25 MiB
CPU L3 Cache Total
25 MiB
CPU Flags
fpu, vme, de, pse, tsc, msr, pae, mce, cx8, apic, sep, mtrr, pge, mca, cmov, pat, pse36, clflush, mmx, fxsr, sse, sse2, ss, ht, syscall, nx, pdpe1gb, rdtscp, lm, constant_tsc, rep_good, nopl, xtopology, nonstop_tsc, cpuid, tsc_known_freq, pni, pclmulqdq, ssse3, fma, cx16, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, tsc_deadline_timer, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, abm, 3dnowprefetch, pti, ibrs, ibpb, stibp, fsgsbase, tsc_adjust, bmi1, hle, avx2, smep, bmi2, erms, invpcid, rtm, rdseed, adx, smap, xsaveopt, arat
Ecpus
10
Scalability
62.5

System Resources and Accelerators

MEMORY
Memory Amount
64 GiB
Memory Amount Actual
64 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
      6 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      A dedicated 16-core x86 server with balanced memory configuration, delivering stable multi-core performance for general-purpose workloads without local storage.

      General Purpose

      Alibaba Cloud ecs.cm4.4xlarge is an x86_64 general-purpose server featuring 16 dedicated physical cores powered by an Intel Xeon E5-2667 v4 processor at 3.2 GHz. It is configured with 64.0 GB of RAM, providing a balanced 4.0 GB of memory per core, and lacks local storage or GPU hardware. Network connectivity is established with a baseline bandwidth of 6 Gbps. Performance benchmarks place this instance in the middle tier for multi-core processing, memory read bandwidth, and database operations, though single-core compute and large-block memory write speeds fall into the bottom 25%. Lacking hyperthreading, the dedicated core allocation ensures stable execution for multi-threaded workloads, static web serving, and standard database tasks, while presenting a performance-per-resource tradeoff due to its older CPU architecture.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.747Score
      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) 1,463,339 ops/sec 1,917,397 ops/sec 0.763 50.00% 50.00% -12.70%
      Redis RPS (pipeline=16, SET) 8,028,410 ops/sec 11,681,410 ops/sec 0.687 20.00% 20.00% -7.23%
      PassMark Memory Mark (composite) 2,165 2,418 0.895 10.00% 10.00% -1.10%
      Memory bandwidth (read, 16 MB ~ L3) 55,921 MB/sec 108,140 MB/sec 0.517 10.00% 10.00% -6.38%
      PassMark single-thread CPU 2,254 Mops/s 2,365 Mops/s 0.953 10.00% 10.00% -0.48%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,167

      Geekbench Multi-Core

      Score: 6,841

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 14861
      Compression
      		 224317
      Encryption
      		 4890
      Extended Instructions
      		 11743
      Floating Point Maths
      		 31840
      Integer Maths
      		 50468
      Physics
      		 1095
      Prime Numbers
      		 62
      Single Threaded
      		 2254
      String Sorting
      		 31315

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2165
      Database Operations
      		 5002
      Memory Latency
      		 63
      Memory Read Cached
      		 25476
      Memory Read Uncached
      		 8728
      Memory Write
      		 7293

      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.cm4.xlarge 416 GiB0
      ecs.cm4.2xlarge 832 GiB0
      ecs.cm4.3xlarge 1248 GiB0
      ecs.cm4.6xlarge 2496 GiB0

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      ecs.cm4.4xlarge FAQs