ecs.cm4.3xlarge by Alibaba Cloud

ecs.cm4.3xlarge is a ecs.cm4 family (12 vCPUs, 48 GiB RAM, 0 GB storage) server offered by Alibaba Cloud with 12 vCPUs, 48 GiB of memory and 0 GB of storage. The pricing starts at 0.69 USD per hour.
12 vCPU
48 GiB Memory
Spare SCore
12,474
(All-cores)
1,576
(Single-core)

Specifications

Server Metadata

Vendor ID
alicloud
Name
ecs.cm4.3xlarge
Description
ecs.cm4 family (12 vCPUs, 48 GiB RAM, 0 GB storage)
Family
ecs.cm4
Hw Virt
Average Time To Start
9
Status
active
Observed At
2026-10-24T15:16:59.068262

Availability

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

Processor

vCPUs
12
Hypervisor
KVM
CPU Allocation
Dedicated
CPU Cores
6
CPU Speed
3.2 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
8369HB
CPU L1D Cache
32 KiB
CPU L1D Cache Total
192 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
192 KiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
6 MiB
CPU L3 Cache
33 MiB
CPU L3 Cache Total
33 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, monitor, ssse3, fma, cx16, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, abm, 3dnowprefetch, pti, fsgsbase, tsc_adjust, bmi1, avx2, smep, bmi2, erms, invpcid, avx512f, avx512dq, rdseed, adx, smap, clflushopt, clwb, avx512cd, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, avx512_bf16, arat, avx512_vnni
Ecpus
7.9
Scalability
65.83

System Resources and Accelerators

MEMORY
Memory Amount
48 GiB
Memory Amount Actual
48 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
      4.5 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      A dedicated Intel-powered instance with balanced compute and memory resources for stable general-purpose workloads and web serving.

      General Purpose

      Alibaba Cloud ecs.cm4.3xlarge is an x86_64 general-purpose server instance featuring a dedicated Intel Xeon 8369HB processor with 12 vCPUs, 6 physical cores, and 48.0 GB of RAM. Operating on the KVM hypervisor, it provides a balanced 4.0 GB of memory per core but lacks local storage and GPU accelerators. Network performance is anchored by a 4 Gbps baseline bandwidth. Benchmark data indicates average performance across standard compute and memory tasks, with a stress-ng multi-core score of 12474.34 and Redis SET throughput of 11.64 million operations per second. However, it exhibits weaker performance in PassMark physics and memory tests. This instance is qualitatively cost-efficient for workloads requiring dedicated CPU resources without extreme memory or storage demands, making it suitable for static web serving, software compilation, and moderate database operations.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.71Score
      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) 1,372,453 ops/sec 1,919,289 ops/sec 0.74 50.00% 50.00% -14.00%
      Redis RPS (pipeline=16, SET) 7,506,430 ops/sec 11,728,058 ops/sec 0.62 20.00% 20.00% -9.10%
      PassMark Memory Mark (composite) 1,778 2,416 0.75 10.00% 10.00% -2.80%
      Memory bandwidth (read, 16 MB ~ L3) 59,051 MB/sec 108,466 MB/sec 0.54 10.00% 10.00% -6.00%
      PassMark single-thread CPU 2,315 Mops/s 2,365 Mops/s 0.96 10.00% 10.00% -0.41%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,257

      Geekbench Multi-Core

      Score: 6,091

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 13,441
      Compression
      		 195,374
      Encryption
      		 5,794
      Extended Instructions
      		 10,990
      Floating Point Maths
      		 22,441
      Integer Maths
      		 41,682
      Physics
      		 742
      Prime Numbers
      		 70
      Single Threaded
      		 2,315
      String Sorting
      		 24,327

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 1,778
      Database Operations
      		 3,403
      Memory Latency
      		 88
      Memory Read Cached
      		 26,214
      Memory Read Uncached
      		 7,083
      Memory Write
      		 7,313

      Stress-ng Stressors

      CPU integerSingleMultiScaling
      atomic
      		 251.69 270 1.07×
      bitops
      		 141,580 938,178 6.63×
      branch
      		 172,488 1,575,426 9.13×
      funccall
      		 635.84 4,020 6.32×
      funcret
      		 12,899 112,106 8.69×
      hash
      		 147,154 1,301,262 8.84×
      intmath
      		 25,021 229,717 9.18×
      nop
      		 214,010 1,110,365 5.19×
      prime
      		 361,939 2,410,253 6.66×
      rotate
      		 108,019 824,394 7.63×
      str
      		 931,297 7,069,176 7.59×
      wcs
      		 584,991 3,905,939 6.68×
      CryptographySingleMultiScaling
      crypt
      		 2,723 15,992 5.87×
      CompressionSingleMultiScaling
      jpeg
      		 672.08 5,033 7.49×
      zlib
      		 62.56 581.45 9.29×
      HypervisorSingleMultiScaling
      clock
      		 21,381 190,211 8.90×
      clone
      		 546.39 2,748 5.03×
      context
      		 3,112 32,714 10.51×
      cpu-sched
      		 57.34 754.09 13.15×
      eventfd
      		 96,303 862,461 8.96×
      fault
      		 14,822 117,998 7.96×
      fork
      		 4,430 39,292 8.87×
      getrandom
      		 51,549 385,293 7.47×
      hrtimers
      		 184,822 1,718,632 9.30×
      mprotect
      		 1,060,664 2,816,561 2.66×
      mtx
      		 12,018,035 376,434,075 31.32×
      munmap
      		 2,741 25,856 9.43×
      null
      		 366,777 3,606,181 9.83×
      pipe
      		 859,020 4,935,227 5.75×
      priv-instr
      		 615,300 5,116,064 8.31×
      resched
      		 3,777,882 1,812,053 0.48×
      switch
      		 234,891 1,847,905 7.87×
      timermix
      		 345,171 3,680,348 10.66×
      tlb-shootdown
      		 9,103 26,823 2.95×
      tsc
      		 1,108,536 9,157,816 8.26×
      usersyscall
      		 444,516 3,948,197 8.88×
      vdso
      		 88,618,198 803,201,272 9.06×
      vfork
      		 30,404 162,332 5.34×
      x86syscall
      		 4,203,357 43,319,077 10.31×
      yield
      		 7,715,017 8,248,495 1.07×
      zero
      		 2,344,210 20,215,835 8.62×
      CPU float/SIMDSingleMultiScaling
      eigen
      		 18,223 130,144 7.14×
      expmath
      		 2,999 27,579 9.20×
      fma
      		 584,333 6,105,870 10.45×
      fp
      		 184.8 1,661 8.99×
      fractal
      		 5.8 51.8 8.93×
      hyperbolic
      		 3,113 29,536 9.49×
      logmath
      		 5,110 46,291 9.06×
      matrix
      		 3,278 30,436 9.28×
      matrix-3d
      		 626.76 2,149 3.43×
      monte-carlo
      		 171.54 1,649 9.61×
      mpfr
      		 1,371 8,916 6.50×
      powmath
      		 1,779 16,344 9.19×
      trig
      		 1,916 15,565 8.12×
      veccmp
      		 18,322 109,135 5.96×
      vecfp
      		 2,143 15,892 7.42×
      vecmath
      		 2,342 22,396 9.56×
      vecshuf
      		 911.95 6,070 6.66×
      vecwide
      		 54,924 389,819 7.10×
      AlgorithmsSingleMultiScaling
      bitonicsort
      		 8 56.8 7.10×
      bsearch
      		 278.16 1,924 6.92×
      bubblesort
      		 0.8 4.8 6.00×
      fibsearch
      		 313.13 2,384 7.61×
      heapsort
      		 9.6 69.8 7.27×
      hsearch
      		 5,626 42,322 7.52×
      insertionsort
      		 9.2 54.4 5.91×
      malloc
      		 2,027,342 20,915,139 10.32×
      mcontend
      		 129.44 2,192 16.93×
      mergesort
      		 30 234.79 7.83×
      qsort
      		 21.2 155.8 7.35×
      skiplist
      		 5,878 49,976 8.50×
      tree
      		 1.6 7.2 4.50×
      MemorySingleMultiScaling
      cache
      		 259,047 411,854 1.59×
      cachehammer
      		 225,514 2,469,107 10.95×
      cacheline
      		 34.55 395.92 11.46×
      l1cache
      		 253.69 1,649 6.50×
      memcpy
      		 427.96 2,597 6.07×
      memrate
      		 0.98 6.97 7.11×
      memthrash
      		 178.51 351.11 1.97×
      ptr-chase
      		 19,074,782 93,144,359 4.88×
      spinmem
      		 325.39 840.53 2.58×
      stream
      		 27.73 2,344 84.53×
      vm
      		 57,318 292,369 5.10×

      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
      ecs.cm4.xlarge 416 GiB0
      ecs.cm4.2xlarge 832 GiB0
      ecs.cm4.4xlarge 1664 GiB0
      ecs.cm4.6xlarge 2496 GiB0

      Similar Servers

      INSTANCEVENDORvCPUsMEMORYAccelerators

      ecs.cm4.3xlarge FAQs