ecs.r8ae.4xlarge by Alibaba Cloud

ecs.r8ae.4xlarge is a ecs.r8ae 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. The pricing starts at 0.9599 USD per hour.
16 vCPU
128 GiB Memory
Spare SCore
24,931
(All-cores)
3,101
(Single-core)

Specifications

Server Metadata

Vendor ID
alicloud
Name
ecs.r8ae.4xlarge
Description
ecs.r8ae family (16 vCPUs, 128 GiB RAM, 0 GB storage)
Family
ecs.r8ae
Hw Virt
Average Time To Start
15
Status
active
Observed At
2026-09-14T08:34:55.008008

Availability

REGION / IDSPOTONDEMAND
Beijing (CN) / cn-beijing
- 0.9599 USD/h
Shanghai (CN) / cn-shanghai
- 0.9599 USD/h

Processor

vCPUs
16
Hypervisor
KVM
CPU Allocation
Dedicated
CPU Cores
16
CPU Speed
3.4 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU Model
9T34
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
32 MiB
CPU L3 Cache Total
32 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, ht, syscall, nx, mmxext, fxsr_opt, pdpe1gb, rdtscp, lm, constant_tsc, rep_good, amd_lbr_v2, nopl, nonstop_tsc, cpuid, extd_apicid, aperfmperf, 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, cmp_legacy, extapic, cr8_legacy, abm, sse4a, misalignsse, 3dnowprefetch, osvw, ibs, topoext, perfctr_core, perfctr_llc, mwaitx, ssbd, perfmon_v2, ibrs, ibpb, stibp, ibrs_enhanced, vmmcall, fsgsbase, tsc_adjust, bmi1, avx2, smep, bmi2, erms, invpcid, avx512f, avx512dq, rdseed, adx, smap, avx512ifma, clflushopt, clwb, avx512cd, sha_ni, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, avx512_bf16, clzero, irperf, xsaveerptr, rdpru, wbnoinvd, arat, avx512vbmi, umip, pku, ospke, avx512_vbmi2, gfni, vaes, vpclmulqdq, avx512_vnni, avx512_bitalg, avx512_vpopcntdq, rdpid, fsrm
Ecpus
8
Scalability
50

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

      CPU and System Topology

      Server Description

      A memory-optimized virtual instance featuring dedicated AMD EPYC processors and high memory density for memory-intensive enterprise workloads.

      Memory OptimizedGeneral Purpose

      Alibaba Cloud ecs.r8ae.4xlarge is a memory-optimized instance featuring 16 dedicated physical cores powered by AMD EPYC 9T34 processors running at 3.4 GHz. It is equipped with 128.0 GB of RAM, yielding a high 8.0 GB per core ratio, but contains no local storage or GPU hardware. Operating on the KVM hypervisor, the instance delivers strong single-core CPU and text processing performance, placing in the top 25% of benchmarks, while its multi-core and memory bandwidth metrics remain in the average tier. Network connectivity is supported by a 12 Gbps baseline bandwidth. Lacking local storage, it relies on network volumes, making it a qualitatively cost-effective choice for memory-bound workloads such as Redis caching, in-memory databases, and enterprise applications that require dedicated compute resources without local storage dependencies.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.851Score
      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) 1,485,100 ops/sec 1,917,397 ops/sec 0.775 50.00% 50.00% -12.00%
      Redis RPS (pipeline=16, SET) 11,681,410 ops/sec 11,681,410 ops/sec 1 20.00% 20.00% 0.00%
      PassMark Memory Mark (composite) 2,755 2,418 1.14 10.00% 10.00% +1.32%
      Memory bandwidth (read, 16 MB ~ L3) 54,724 MB/sec 108,140 MB/sec 0.506 10.00% 10.00% -6.59%
      PassMark single-thread CPU 2,921 Mops/s 2,365 Mops/s 1.24 10.00% 10.00% +2.17%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,012

      Geekbench Multi-Core

      Score: 12,095

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 26669
      Compression
      		 312273
      Encryption
      		 19498
      Extended Instructions
      		 22213
      Floating Point Maths
      		 43061
      Integer Maths
      		 77015
      Physics
      		 2540
      Prime Numbers
      		 124
      Single Threaded
      		 2921
      String Sorting
      		 45817

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2755
      Database Operations
      		 7533
      Memory Latency
      		 72
      Memory Read Cached
      		 27794
      Memory Read Uncached
      		 26511
      Memory Write
      		 26024

      Stress-ng Raw Scores

      Stress-ng Relative Multicore Performance

      Static Web Server

      Redis

      Alternatives

      Servers of the Same Family

      INSTANCEvCPUsMEMORYGPUs
      ecs.r8ae.large 216 GiB0
      ecs.r8ae.xlarge 432 GiB0
      ecs.r8ae.2xlarge 864 GiB0
      ecs.r8ae.8xlarge 32256 GiB0

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      ecs.r8ae.4xlarge FAQs