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ecs.c6.4xlarge by Alibaba Cloud

ecs.c6.4xlarge is a ecs.c6 family (16 vCPUs, 32 GiB RAM, 0 GB storage) server offered by Alibaba Cloud with 16 vCPUs, 32 GiB of memory and 0 GB of storage. The pricing starts at 0.4829 USD per hour.
16 vCPU
32 GiB Memory
Spare SCore
13975
(All-cores)
1311
(Single-core)

Specifications

Server Metadata

Vendor ID
alicloud
Name
ecs.c6.4xlarge
Description
ecs.c6 family (16 vCPUs, 32 GiB RAM, 0 GB storage)
Family
ecs.c6
Hw Virt
Average Time To Start
14.5
Status
active
Observed At
2026-07-25T14:37:56.241595

Availability

REGION / IDSPOTONDEMAND
Shenzhen (CN) / cn-shenzhen
- 0.4829 USD/h

Processor

vCPUs
16
Hypervisor
KVM
CPU Allocation
Dedicated
CPU Cores
16
CPU Speed
2.5 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
8269CY
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
1 MiB
CPU L2 Cache Total
8 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
10.7
Scalability
66.88

System Resources and Accelerators

MEMORY
Memory Amount
32 GiB
Memory Amount Actual
32 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
      5 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      A dedicated 16-core Intel Xeon compute instance with a balanced 1:2 memory-to-CPU ratio for multi-threaded workloads.

      Compute OptimizedGeneral Purpose

      Alibaba Cloud ecs.c6.4xlarge is a compute-optimized instance featuring 16 dedicated vCPUs powered by an Intel Xeon 8269CY processor running at 2.5 GHz, paired with 32.0 GB of memory. Operating on the KVM hypervisor, this x86_64 server lacks local storage and GPU accelerators, utilizing a baseline network bandwidth of 5 Gbps. Benchmark data reveals a contrast between weak single-core performance and average multi-core capabilities, with stress-ng multi-core, Passmark CPU, and Redis SET operations all scoring in the middle 50% tier. Memory bandwidth is also average, reaching 88.67 GB/sec for uncached large blocks. With a 1:2 vCPU-to-RAM ratio, this instance delivers qualitative cost efficiency for parallelized compute tasks. It is best suited for multi-threaded workloads, static web serving, and database operations.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.778Score
      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) 1,407,680 ops/sec 1,896,415 ops/sec 0.742 50.00% 50.00% -13.90%
      Redis RPS (pipeline=16, SET) 8,172,146 ops/sec 11,539,523 ops/sec 0.708 20.00% 20.00% -6.67%
      PassMark Memory Mark (composite) 2,381 2,411 0.987 10.00% 10.00% -0.13%
      Memory bandwidth (read, 16 MB ~ L3) 94,285 MB/sec 107,368 MB/sec 0.878 10.00% 10.00% -1.29%
      PassMark single-thread CPU 1,961 Mops/s 2,363 Mops/s 0.83 10.00% 10.00% -1.85%

      Memory Bandwidth

      Compression

      OpenSSL

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 15380
      Compression
      		 217864
      Encryption
      		 6467
      Extended Instructions
      		 13013
      Floating Point Maths
      		 25075
      Integer Maths
      		 46708
      Physics
      		 1570
      Prime Numbers
      		 88
      Single Threaded
      		 1961
      String Sorting
      		 29053

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2381
      Database Operations
      		 5534
      Memory Latency
      		 55
      Memory Read Cached
      		 22717
      Memory Read Uncached
      		 9686
      Memory Write
      		 9539

      Stress-ng Raw Scores

      Stress-ng Relative Multicore Performance

      Static Web Server

      Redis

      Alternatives

      Servers of the Same Family

      INSTANCEvCPUsMEMORYGPUs
      ecs.c6.large 24 GiB0
      ecs.c6.xlarge 48 GiB0
      ecs.c6.2xlarge 816 GiB0
      ecs.c6.3xlarge 1224 GiB0

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      ecs.c6.4xlarge FAQs