ecs.ic5.3xlarge by Alibaba Cloud

ecs.ic5.3xlarge is a ecs.ic5 family (12 vCPUs, 12 GiB RAM, 0 GB storage) server offered by Alibaba Cloud with 12 vCPUs, 12 GiB of memory and 0 GB of storage. The pricing starts at 0.0403 USD per hour.
12 vCPU
12 GiB Memory
Spare SCore
8,838
(All-cores)
1,105
(Single-core)

Specifications

Server Metadata

Vendor ID
alicloud
Name
ecs.ic5.3xlarge
Description
ecs.ic5 family (12 vCPUs, 12 GiB RAM, 0 GB storage)
Family
ecs.ic5
Hw Virt
Status
active
Observed At
2026-10-24T04:54:00.937386

Availability

REGION / IDSPOTONDEMAND
Frankfurt (DE) / eu-central-1
0.092 USD/h 0.46 USD/h
Jakarta (ID) / ap-southeast-5
0.0403 USD/h 0.504 USD/h
Ulanqab (CN) / cn-wulanchabu
- 0.504 USD/h
Qingdao (CN) / cn-qingdao
0.112 USD/h 0.56 USD/h
Beijing (CN) / cn-beijing
- 0.56 USD/h
Hangzhou (CN) / cn-hangzhou
- 0.56 USD/h
Shanghai (CN) / cn-shanghai
- 0.56 USD/h
Shenzhen (CN) / cn-shenzhen
- 0.56 USD/h

Processor

vCPUs
12
Hypervisor
KVM
CPU Allocation
Dedicated
CPU Cores
6
CPU Speed
2.5 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
8163
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
36 MiB
CPU L3 Cache Total
36 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, arat, avx512_vnni
Ecpus
8
Scalability
66.67

System Resources and Accelerators

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

      CPU and System Topology

      Server Description

      A dedicated multi-core compute instance featuring a balanced 1:1 processor-to-memory ratio for parallelized, low-memory workloads.

      Compute OptimizedGeneral Purpose

      Alibaba Cloud ecs.ic5.3xlarge is an x86_64 compute-focused server instance powered by an Intel Xeon 8163 processor running at 2.5 GHz. It features 12 dedicated vCPUs across 6 physical cores, 12.0 GB of RAM, and a baseline network bandwidth of 4 Gbps, with no local storage or GPU accelerators. Operating under a KVM hypervisor, the instance exhibits a 1:1 vCPU-to-RAM ratio. Benchmarks indicate weak single-core performance but average multi-core scaling, with a stress-ng multi-core score of 8838.44 and average memory bandwidth. This resource profile makes the instance qualitatively cost-efficient for multi-threaded, compute-bound tasks with low memory footprints, such as static web serving, Redis operations, and basic multi-threaded processing, while remaining less suitable for memory-heavy databases or large-scale language model inference.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.53Score
      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) 929,618 ops/sec 1,919,289 ops/sec 0.49 50.00% 50.00% -30.00%
      Redis RPS (pipeline=16, SET) 5,412,194 ops/sec 11,728,058 ops/sec 0.45 20.00% 20.00% -15.00%
      PassMark Memory Mark (composite) 1,653 2,416 0.71 10.00% 10.00% -3.40%
      Memory bandwidth (read, 16 MB ~ L3) 62,216 MB/sec 108,466 MB/sec 0.56 10.00% 10.00% -5.60%
      PassMark single-thread CPU 1,653 Mops/s 2,365 Mops/s 0.71 10.00% 10.00% -3.40%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 995

      Geekbench Multi-Core

      Score: 5,055

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 10,093
      Compression
      		 135,691
      Encryption
      		 4,096
      Extended Instructions
      		 9,202
      Floating Point Maths
      		 15,863
      Integer Maths
      		 29,512
      Physics
      		 1,013
      Prime Numbers
      		 57
      Single Threaded
      		 1,653
      String Sorting
      		 18,034

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 1,653
      Database Operations
      		 3,309
      Memory Latency
      		 74
      Memory Read Cached
      		 19,504
      Memory Read Uncached
      		 6,744
      Memory Write
      		 6,976

      Stress-ng Stressors

      CPU integerSingleMultiScaling
      atomic
      		 181.49 176.36 0.97×
      bitops
      		 97,057 647,594 6.67×
      branch
      		 122,012 1,110,529 9.10×
      funccall
      		 449.28 2,821 6.28×
      funcret
      		 9,048 79,314 8.77×
      hash
      		 103,557 919,039 8.87×
      intmath
      		 17,816 163,249 9.16×
      nop
      		 151,424 786,812 5.20×
      prime
      		 261,098 1,746,511 6.69×
      rotate
      		 76,553 578,650 7.56×
      str
      		 641,322 4,829,801 7.53×
      wcs
      		 413,064 2,701,401 6.54×
      CryptographySingleMultiScaling
      crypt
      		 1,914 11,306 5.91×
      CompressionSingleMultiScaling
      jpeg
      		 493.77 3,657 7.41×
      zlib
      		 42.17 388.05 9.20×
      HypervisorSingleMultiScaling
      clock
      		 14,957 119,973 8.02×
      clone
      		 371.71 1,790 4.81×
      context
      		 1,522 12,420 8.16×
      cpu-sched
      		 54.91 800.62 14.58×
      eventfd
      		 72,959 549,908 7.54×
      fault
      		 10,746 84,268 7.84×
      fork
      		 3,369 27,045 8.03×
      getrandom
      		 35,636 265,281 7.44×
      hrtimers
      		 315,082 1,118,613 3.55×
      mprotect
      		 821,495 1,472,528 1.79×
      mtx
      		 9,053,008 273,877,923 30.25×
      munmap
      		 2,390 18,497 7.74×
      null
      		 164,106 1,237,098 7.54×
      pipe
      		 824,888 3,275,558 3.97×
      priv-instr
      		 347,017 2,730,280 7.87×
      resched
      		 2,120,727 867,602 0.41×
      switch
      		 214,757 1,240,910 5.78×
      timermix
      		 339,056 2,800,905 8.26×
      tlb-shootdown
      		 9,769 25,229 2.58×
      tsc
      		 788,910 6,642,589 8.42×
      usersyscall
      		 242,385 1,897,979 7.83×
      vdso
      		 64,172,393 678,378,791 10.57×
      vfork
      		 25,628 138,550 5.41×
      x86syscall
      		 1,830,777 13,897,963 7.59×
      yield
      		 5,156,353 5,149,845 1.00×
      zero
      		 1,254,662 8,934,500 7.12×
      CPU float/SIMDSingleMultiScaling
      eigen
      		 12,897 99,252 7.70×
      expmath
      		 2,124 19,529 9.20×
      fma
      		 510,029 5,008,021 9.82×
      fp
      		 103.01 867.27 8.42×
      fractal
      		 4 34.4 8.60×
      hyperbolic
      		 2,180 20,904 9.59×
      logmath
      		 3,613 32,722 9.06×
      matrix
      		 2,434 23,884 9.81×
      matrix-3d
      		 553.16 2,198 3.97×
      monte-carlo
      		 85.7 693.72 8.09×
      mpfr
      		 967.72 6,296 6.51×
      powmath
      		 1,258 11,533 9.16×
      trig
      		 1,356 11,038 8.14×
      veccmp
      		 12,332 76,446 6.20×
      vecfp
      		 1,101 8,243 7.49×
      vecmath
      		 1,729 16,397 9.48×
      vecshuf
      		 446.7 2,880 6.45×
      vecwide
      		 20,940 143,422 6.85×
      AlgorithmsSingleMultiScaling
      bitonicsort
      		 5.6 40.2 7.18×
      bsearch
      		 197.72 1,354 6.85×
      bubblesort
      		 0.6 2.4 4.00×
      fibsearch
      		 222.46 1,689 7.59×
      heapsort
      		 6.6 49 7.42×
      hsearch
      		 4,087 29,558 7.23×
      insertionsort
      		 6.4 38.4 6.00×
      malloc
      		 1,653,574 17,040,344 10.31×
      mcontend
      		 112.9 2,128 18.85×
      mergesort
      		 21.2 167.19 7.89×
      qsort
      		 15 110.2 7.35×
      skiplist
      		 4,145 35,205 8.49×
      tree
      		 1.2 7.2 6.00×
      MemorySingleMultiScaling
      cache
      		 241,626 381,558 1.58×
      cachehammer
      		 247,806 2,627,267 10.60×
      cacheline
      		 31.28 358.04 11.45×
      l1cache
      		 179.58 1,164 6.48×
      memcpy
      		 302.8 1,837 6.07×
      memrate
      		 0.97 6.81 7.02×
      memthrash
      		 121.37 370.41 3.05×
      ptr-chase
      		 20,782,769 93,429,308 4.50×
      spinmem
      		 282.39 703.52 2.49×
      stream
      		 30.95 2,484 80.25×
      vm
      		 29,964 291,892 9.74×

      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.ic5.large 22 GiB0
      ecs.ic5.xlarge 44 GiB0
      ecs.ic5.2xlarge 88 GiB0
      ecs.ic5.4xlarge 1616 GiB0
      ecs.ic5.6xlarge 2424 GiB0
      ecs.ic5.8xlarge 3232 GiB0
      ecs.ic5.16xlarge 6464 GiB0

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      ecs.ic5.3xlarge FAQs