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ecs.ic5.16xlarge by Alibaba Cloud

ecs.ic5.16xlarge is a ecs.ic5 family (64 vCPUs, 64 GiB RAM, 0 GB storage) server offered by Alibaba Cloud with 64 vCPUs, 64 GiB of memory and 0 GB of storage. The pricing starts at 0.4301 USD per hour.
64 vCPU
64 GiB Memory
Spare SCore
47219
(All-cores)
1106
(Single-core)

Specifications

Server Metadata

Vendor ID
alicloud
Name
ecs.ic5.16xlarge
Description
ecs.ic5 family (64 vCPUs, 64 GiB RAM, 0 GB storage)
Family
ecs.ic5
Hw Virt
Status
active
Observed At
2026-08-10T02:09:33.661468

Availability

REGION / IDSPOTONDEMAND
Jakarta (ID) / ap-southeast-5
0.4301 USD/h 2.688 USD/h
Beijing (CN) / cn-beijing
- 2.97 USD/h
Hangzhou (CN) / cn-hangzhou
- 2.97 USD/h
Shenzhen (CN) / cn-shenzhen
- 2.97 USD/h

Processor

vCPUs
64
Hypervisor
KVM
CPU Allocation
Dedicated
CPU Cores
64
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
1 MiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
1 MiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
32 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
42.7
Scalability
66.72

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
      20 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      A high-core-count, compute-focused server designed for parallelized workloads and multi-threaded processing without local storage or GPU requirements.

      Compute Optimized

      Alibaba Cloud ecs.ic5.16xlarge is a compute-focused x86_64 server instance featuring 64 dedicated physical cores and 64 vCPUs powered by an Intel Xeon 8163 processor running at 2.5 GHz. It is configured with 64.0 GB of RAM, providing a 1.0 GB per core ratio, and contains no local storage or GPU accelerators. Operating on a KVM hypervisor, it delivers a baseline network bandwidth of 20 Gbps. Performance benchmarks indicate weak single-core capabilities, but average to strong multi-core and multi-threaded performance, as demonstrated by multi-threaded bzip3 decompression and stress-ng multi-core tests. Qualitatively, the instance offers high compute density but is constrained by its low memory-to-CPU ratio. It is best suited for parallelized compute workloads, software compilation, and static web serving, rather than memory-intensive or single-threaded applications.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1.76Score
      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) 4,661,712 ops/sec 1,910,660 ops/sec 2.44 50.00% 50.00% +56.20%
      Redis RPS (pipeline=16, SET) 26,590,587 ops/sec 11,608,287 ops/sec 2.29 20.00% 20.00% +18.00%
      PassMark Memory Mark (composite) 1,922 2,416 0.796 10.00% 10.00% -2.26%
      Memory bandwidth (read, 16 MB ~ L3) 123,645 MB/sec 107,896 MB/sec 1.15 10.00% 10.00% +1.41%
      PassMark single-thread CPU 1,665 Mops/s 2,364 Mops/s 0.704 10.00% 10.00% -3.45%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,022

      Geekbench Multi-Core

      Score: 10,782

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 38537
      Compression
      		 720145
      Encryption
      		 21669
      Extended Instructions
      		 49834
      Floating Point Maths
      		 84663
      Integer Maths
      		 157839
      Physics
      		 3756
      Prime Numbers
      		 213
      Single Threaded
      		 1665
      String Sorting
      		 93238

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 1922
      Database Operations
      		 17079
      Memory Latency
      		 73
      Memory Read Cached
      		 19253
      Memory Read Uncached
      		 6939
      Memory Write
      		 7126

      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.ic5.large 22 GiB0
      ecs.ic5.xlarge 44 GiB0
      ecs.ic5.2xlarge 88 GiB0
      ecs.ic5.3xlarge 1212 GiB0
      ecs.ic5.4xlarge 1616 GiB0
      ecs.ic5.6xlarge 2424 GiB0
      ecs.ic5.8xlarge 3232 GiB0

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      ecs.ic5.16xlarge FAQs