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ecs.r5.3xlarge by Alibaba Cloud

ecs.r5.3xlarge is a ecs.r5 family (12 vCPUs, 96 GiB RAM, 0 GB storage) server offered by Alibaba Cloud with 12 vCPUs, 96 GiB of memory and 0 GB of storage. The pricing starts at 0.0981 USD per hour.
12 vCPU
96 GiB Memory
Spare SCore
8831
(All-cores)
1109
(Single-core)

Specifications

Server Metadata

Vendor ID
alicloud
Name
ecs.r5.3xlarge
Description
ecs.r5 family (12 vCPUs, 96 GiB RAM, 0 GB storage)
Family
ecs.r5
Hw Virt
Status
active
Observed At
2026-07-25T22:25:02.959452

Availability

REGION / IDSPOTONDEMAND
Jakarta (ID) / ap-southeast-5
- 0.876 USD/h
Beijing (CN) / cn-beijing
0.0981 USD/h 1.09 USD/h
Shenzhen (CN) / cn-shenzhen
0.1744 USD/h 1.09 USD/h

Processor

vCPUs
12
Hypervisor
KVM
CPU Allocation
Dedicated
CPU Cores
12
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
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
8
Scalability
66.67

System Resources and Accelerators

MEMORY
Memory Amount
96 GiB
Memory Amount Actual
96 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
      4 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      A memory-optimized virtual server delivering high RAM density and balanced multi-core performance for database and caching workloads.

      Memory OptimizedGeneral Purpose

      Alibaba Cloud ecs.r5.3xlarge is an x86_64 memory-optimized instance featuring 12 dedicated physical cores on an Intel Xeon 8163 processor clocked at 2.5 GHz. Equipped with 96.0 GB of RAM, it provides a high memory-to-vCPU ratio of 8.0 GB per core, though it lacks local storage and GPU accelerators. Performance benchmarks show a distinct tradeoff: single-core CPU execution and single-threaded compression tasks are weak, falling into the bottom 25%, while multi-core operations, memory bandwidth, and database transactions perform at average levels. This resource profile makes the instance qualitatively cost-efficient for memory-bound workloads that do not demand high single-threaded processing speeds. It is best suited for database hosting, Redis caching, static web serving, and moderate multi-threaded data processing.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.473Score
      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) 738,661 ops/sec 1,896,415 ops/sec 0.39 50.00% 50.00% -37.60%
      Redis RPS (pipeline=16, SET) 5,241,776 ops/sec 11,539,523 ops/sec 0.454 20.00% 20.00% -14.60%
      PassMark Memory Mark (composite) 1,791 2,411 0.743 10.00% 10.00% -2.93%
      Memory bandwidth (read, 16 MB ~ L3) 60,767 MB/sec 107,368 MB/sec 0.566 10.00% 10.00% -5.53%
      PassMark single-thread CPU 1,690 Mops/s 2,363 Mops/s 0.715 10.00% 10.00% -3.30%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 950

      Geekbench Multi-Core

      Score: 4,817

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 10084
      Compression
      		 136223
      Encryption
      		 4090
      Extended Instructions
      		 8899
      Floating Point Maths
      		 15851
      Integer Maths
      		 29552
      Physics
      		 1003
      Prime Numbers
      		 58
      Single Threaded
      		 1690
      String Sorting
      		 18079

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 1791
      Database Operations
      		 3240
      Memory Latency
      		 79
      Memory Read Cached
      		 19489
      Memory Read Uncached
      		 6941
      Memory Write
      		 7448

      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.r5.large 216 GiB0
      ecs.r5.xlarge 432 GiB0
      ecs.r5.2xlarge 864 GiB0
      ecs.r5.4xlarge 16128 GiB0
      ecs.r5.6xlarge 24192 GiB0
      ecs.r5.8xlarge 32256 GiB0
      ecs.r5.16xlarge 64512 GiB0

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      ecs.r5.3xlarge FAQs