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ecs.u0.c1m8.4xlarge by Alibaba Cloud

ecs.u0.c1m8.4xlarge is a ecs.u0 family (16 vCPUs, 128 GiB RAM, 0 GB storage) server offered by Alibaba Cloud with 16 vCPUs, 128 GiB of memory and 0 GB of storage.
16 vCPU
128 GiB Memory
Spare SCore
11726
(All-cores)
1106
(Single-core)

Specifications

Server Metadata

Vendor ID
alicloud
Name
ecs.u0.c1m8.4xlarge
Description
ecs.u0 family (16 vCPUs, 128 GiB RAM, 0 GB storage)
Family
ecs.u0
Hw Virt
Status
inactive
Observed At
2026-07-15T10:43:10.331196

Availability

REGION / IDSPOTONDEMAND

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
8163
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
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, ssse3, fma, cx16, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, tsc_deadline_timer, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, abm, 3dnowprefetch, pti, ibrs, ibpb, stibp, fsgsbase, tsc_adjust, bmi1, hle, avx2, smep, bmi2, erms, invpcid, rtm, mpx, avx512f, avx512dq, rdseed, adx, smap, avx512cd, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, arat
Ecpus
10.6
Scalability
66.25

System Resources and Accelerators

MEMORY
Memory Amount
128 GiB
Memory Amount Actual
128 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
      3 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      A memory-optimized virtual server featuring dedicated Intel Xeon cores and a high memory-to-vCPU ratio for parallel, memory-intensive workloads.

      Memory OptimizedGeneral Purpose

      Alibaba Cloud ecs.u0.c1m8.4xlarge is a memory-optimized virtual server featuring 16 dedicated vCPUs on an Intel Xeon 8163 processor and 128.0 GB of RAM. Operating on the KVM hypervisor, this instance provides a high memory-to-core ratio of 8.0 GB per vCPU without local storage or GPU resources. Benchmark data shows weak single-core CPU performance and poor single-threaded compression speeds, but average multi-core capabilities in stress-ng and Geekbench. Memory bandwidth remains average for large blocks, supporting stable performance in Redis SET operations and static web serving. Lacking local storage, it relies on network-attached volumes over a 3 Gbps baseline network. This instance is qualitatively cost-efficient for memory-heavy workloads that benefit from dedicated physical cores but do not demand high single-threaded compute power, making it suitable for database caching, multi-threaded data processing, and general-purpose memory-bound applications.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 926

      Geekbench Multi-Core

      Score: 5,680

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      12977
      Compression
      181781
      Encryption
      5429
      Extended Instructions
      11856
      Floating Point Maths
      21016
      Integer Maths
      39116
      Physics
      1346
      Prime Numbers
      67
      Single Threaded
      1678
      String Sorting
      24199

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      1749
      Database Operations
      4299
      Memory Latency
      80
      Memory Read Cached
      19237
      Memory Read Uncached
      6255
      Memory Write
      6729

      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.u0.c1m8.large 216 GiB0
      ecs.u0.c1m8.xlarge 432 GiB0

      Similar Servers

      INSTANCEVENDORvCPUsMEMORYGPUs

      ecs.u0.c1m8.4xlarge FAQs