ecs.c5.3xlarge by Alibaba Cloud

ecs.c5.3xlarge is a ecs.c5 family (12 vCPUs, 24 GiB RAM, 0 GB storage) server offered by Alibaba Cloud with 12 vCPUs, 24 GiB of memory and 0 GB of storage. The pricing starts at 0.528 USD per hour.
12 vCPU
24 GiB Memory
Spare SCore
8,856
(All-cores)
1,107
(Single-core)

Specifications

Server Metadata

Vendor ID
alicloud
Name
ecs.c5.3xlarge
Description
ecs.c5 family (12 vCPUs, 24 GiB RAM, 0 GB storage)
Family
ecs.c5
Hw Virt
Status
active
Observed At
2026-10-24T04:54:00.936986

Availability

REGION / IDSPOTONDEMAND
Jakarta (ID) / ap-southeast-5
- 0.528 USD/h
Beijing (CN) / cn-beijing
- 0.59 USD/h
Shenzhen (CN) / cn-shenzhen
- 0.59 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
24 GiB
Memory Amount Actual
24 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 compute-optimized instance featuring twelve dedicated vCPUs and a balanced memory-to-core ratio for multi-threaded workloads.

      Compute Optimized

      Alibaba Cloud ecs.c5.3xlarge is a compute-optimized instance featuring 12 dedicated vCPUs and 24.0 GB of RAM, running on an Intel Xeon 8163 processor at 2.5 GHz. Built on the x86_64 architecture and KVM hypervisor, it provides a 1:2 vCPU-to-RAM ratio with no bundled local storage or GPU accelerators. The instance delivers a baseline network bandwidth of 4 Gbps. Performance benchmarks indicate average multi-core capabilities, with a Geekbench multi-core score of 5135.0 and a Redis SET throughput of 8.65 million operations per second, though single-core performance is weak. This hardware profile is qualitatively cost-effective for compute-bound tasks that require dedicated CPU resources without high memory demands. It is suitable for workloads such as software compilation, static web serving, and multi-threaded data processing.

      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) 937,313 ops/sec 1,919,289 ops/sec 0.49 50.00% 50.00% -30.00%
      Redis RPS (pipeline=16, SET) 5,584,297 ops/sec 11,728,058 ops/sec 0.47 20.00% 20.00% -14.00%
      PassMark Memory Mark (composite) 1,734 2,416 0.71 10.00% 10.00% -3.40%
      Memory bandwidth (read, 16 MB ~ L3) 61,437 MB/sec 108,466 MB/sec 0.55 10.00% 10.00% -5.80%
      PassMark single-thread CPU 1,671 Mops/s 2,365 Mops/s 0.71 10.00% 10.00% -3.40%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,018

      Geekbench Multi-Core

      Score: 5,135

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 10,202
      Compression
      		 136,210
      Encryption
      		 4,102
      Extended Instructions
      		 9,185
      Floating Point Maths
      		 15,891
      Integer Maths
      		 29,587
      Physics
      		 1,073
      Prime Numbers
      		 64
      Single Threaded
      		 1,671
      String Sorting
      		 18,399

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 1,734
      Database Operations
      		 3,353
      Memory Latency
      		 76
      Memory Read Cached
      		 19,346
      Memory Read Uncached
      		 6,838
      Memory Write
      		 7,211

      Stress-ng Stressors

      CPU integerSingleMultiScaling
      atomic
      		 184.66 171.77 0.93×
      bitops
      		 97,197 649,238 6.68×
      branch
      		 122,204 1,113,558 9.11×
      funccall
      		 448.47 2,830 6.31×
      funcret
      		 9,109 79,318 8.71×
      hash
      		 103,735 920,114 8.87×
      intmath
      		 17,618 162,881 9.25×
      nop
      		 151,677 788,183 5.20×
      prime
      		 261,455 1,750,721 6.70×
      rotate
      		 76,642 581,693 7.59×
      str
      		 609,450 4,871,005 7.99×
      wcs
      		 413,740 2,781,208 6.72×
      CryptographySingleMultiScaling
      crypt
      		 1,929 11,326 5.87×
      CompressionSingleMultiScaling
      jpeg
      		 492.19 3,679 7.48×
      zlib
      		 39.58 359.87 9.09×
      HypervisorSingleMultiScaling
      clock
      		 14,931 120,323 8.06×
      clone
      		 381.08 2,172 5.70×
      context
      		 1,523 12,341 8.10×
      cpu-sched
      		 63.92 787.44 12.32×
      eventfd
      		 71,831 549,891 7.66×
      fault
      		 10,755 85,261 7.93×
      fork
      		 3,483 27,567 7.92×
      getrandom
      		 35,661 265,778 7.45×
      hrtimers
      		 133,684 1,070,348 8.01×
      mprotect
      		 827,300 1,475,842 1.78×
      mtx
      		 10,653,785 263,022,907 24.69×
      munmap
      		 2,451 19,063 7.78×
      null
      		 165,296 1,233,627 7.46×
      pipe
      		 812,172 3,280,173 4.04×
      priv-instr
      		 346,496 2,724,743 7.86×
      resched
      		 2,139,546 887,132 0.41×
      switch
      		 218,196 1,232,164 5.65×
      timermix
      		 338,736 2,782,011 8.21×
      tlb-shootdown
      		 9,947 25,707 2.58×
      tsc
      		 790,198 6,662,840 8.43×
      usersyscall
      		 240,826 1,902,471 7.90×
      vdso
      		 64,229,879 673,238,135 10.48×
      vfork
      		 27,047 141,010 5.21×
      x86syscall
      		 1,834,307 13,832,463 7.54×
      yield
      		 5,195,436 5,443,187 1.05×
      zero
      		 1,244,224 8,934,770 7.18×
      CPU float/SIMDSingleMultiScaling
      eigen
      		 12,934 101,883 7.88×
      expmath
      		 2,133 19,583 9.18×
      fma
      		 511,203 5,031,239 9.84×
      fp
      		 105.6 873.42 8.27×
      fractal
      		 4 34.6 8.65×
      hyperbolic
      		 2,214 20,903 9.44×
      logmath
      		 3,618 32,841 9.08×
      matrix
      		 2,440 24,118 9.88×
      matrix-3d
      		 584.73 2,302 3.94×
      monte-carlo
      		 85.38 656.36 7.69×
      mpfr
      		 967.97 6,304 6.51×
      powmath
      		 1,259 11,564 9.19×
      trig
      		 1,359 11,077 8.15×
      veccmp
      		 12,356 76,511 6.19×
      vecfp
      		 1,103 8,229 7.46×
      vecmath
      		 1,734 16,450 9.49×
      vecshuf
      		 447.16 2,887 6.46×
      vecwide
      		 20,998 143,642 6.84×
      AlgorithmsSingleMultiScaling
      bitonicsort
      		 5.8 40.2 6.93×
      bsearch
      		 197.93 1,362 6.88×
      bubblesort
      		 0.6 2.4 4.00×
      fibsearch
      		 222.7 1,701 7.64×
      heapsort
      		 6.6 49 7.42×
      hsearch
      		 4,090 29,576 7.23×
      insertionsort
      		 6.4 38.4 6.00×
      malloc
      		 1,708,214 16,711,464 9.78×
      mcontend
      		 120.3 2,828 23.51×
      mergesort
      		 21.2 167.6 7.91×
      qsort
      		 15 112.2 7.48×
      skiplist
      		 4,120 35,303 8.57×
      tree
      		 1.2 7.2 6.00×
      MemorySingleMultiScaling
      cache
      		 279,434 464,542 1.66×
      cachehammer
      		 250,036 2,702,628 10.81×
      cacheline
      		 33.33 373.58 11.21×
      l1cache
      		 179.75 1,164 6.47×
      memcpy
      		 302.65 1,838 6.07×
      memrate
      		 0.97 6.82 7.03×
      memthrash
      		 154.43 377.54 2.44×
      ptr-chase
      		 29,711,881 99,307,614 3.34×
      spinmem
      		 316.79 788.86 2.49×
      stream
      		 34.03 2,724 80.05×
      vm
      		 29,819 291,781 9.79×

      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.c5.large 24 GiB0
      ecs.c5.xlarge 48 GiB0
      ecs.c5.2xlarge 816 GiB0
      ecs.c5.4xlarge 1632 GiB0
      ecs.c5.6xlarge 2448 GiB0
      ecs.c5.8xlarge 3264 GiB0
      ecs.c5.16xlarge 64128 GiB0

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      ecs.c5.3xlarge FAQs