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ecs.r8a.8xlarge by Alibaba Cloud

ecs.r8a.8xlarge is a ecs.r8a family (32 vCPUs, 256 GiB RAM, 0 GB storage) server offered by Alibaba Cloud with 32 vCPUs, 256 GiB of memory and 0 GB of storage. The pricing starts at 1.6835 USD per hour.
32 vCPU
256 GiB Memory
Spare SCore
49143
(All-cores)
3073
(Single-core)

Specifications

Server Metadata

Vendor ID
alicloud
Name
ecs.r8a.8xlarge
Description
ecs.r8a family (32 vCPUs, 256 GiB RAM, 0 GB storage)
Family
ecs.r8a
Hw Virt
Average Time To Start
13
Status
active
Observed At
2026-07-21T22:06:55.431784

Availability

REGION / IDSPOTONDEMAND
Shenzhen (CN) / cn-shenzhen
- 1.6835 USD/h

Processor

vCPUs
32
Hypervisor
KVM
CPU Allocation
Dedicated
CPU Cores
32
CPU Speed
2.7 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU Model
9T24
CPU L1D Cache
32 KiB
CPU L1D Cache Total
512 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
512 KiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
16 MiB
CPU L3 Cache
32 MiB
CPU L3 Cache Total
64 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
16
Scalability
50

System Resources and Accelerators

MEMORY
Memory Amount
256 GiB
Memory Amount Actual
256 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
      10 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 AMD EPYC processors and 256 GB of RAM for memory-intensive enterprise workloads.

      Memory OptimizedGeneral Purpose

      Alibaba Cloud ecs.r8a.8xlarge is a memory-optimized instance featuring 32 dedicated physical cores powered by an AMD EPYC 9T24 processor running at 2.7 GHz. Built on the x86_64 architecture and managed via the KVM hypervisor, this instance provides 256.0 GB of RAM, establishing a high 8.0 GB per core memory-to-CPU ratio. It lacks local storage and GPU accelerators, but delivers a baseline network bandwidth of 10 Gbps. Benchmark data highlights strong single-core CPU performance alongside average multi-core and memory bandwidth capabilities. The processor supports advanced vector extensions such as AVX-512 and AVX512_VNNI. This instance is well-suited for memory-intensive workloads, including in-memory databases, caching layers, and enterprise applications requiring substantial RAM without the need for local physical disks.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.784Score
      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.Partial coverage: missing component benchmark(s): Redis RPS (pipeline=1, SET), Redis RPS (pipeline=16, SET), PassMark Memory Mark (composite), PassMark single-thread CPU.
      Component Score Weight Impact
      Raw Reference Normalized Target Actual
      Redis RPS (pipeline=1, SET) — 1,896,415 ops/sec — 50.00% 0.00% —
      Redis RPS (pipeline=16, SET) — 11,539,523 ops/sec — 20.00% 0.00% —
      PassMark Memory Mark (composite) — 2,411 — 10.00% 0.00% —
      Memory bandwidth (read, 16 MB ~ L3) 84,211 MB/sec 107,368 MB/sec 0.784 10.00% 100.00% -21.60%
      PassMark single-thread CPU — 2,363 Mops/s — 10.00% 0.00% —

      Memory Bandwidth

      Compression

      OpenSSL

      Stress-ng Raw Scores

      Stress-ng Relative Multicore Performance

      Alternatives

      Servers of the Same Family

      INSTANCEvCPUsMEMORYGPUs
      ecs.r8a.large 216 GiB0
      ecs.r8a.xlarge 432 GiB0
      ecs.r8a.2xlarge 864 GiB0
      ecs.r8a.4xlarge 16128 GiB0
      ecs.r8a.12xlarge 48384 GiB0
      ecs.r8a.16xlarge 64512 GiB0
      ecs.r8a.24xlarge 96768 GiB0

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      ecs.r8a.8xlarge FAQs