ecs.g8a.4xlarge by Alibaba Cloud

ecs.g8a.4xlarge is a ecs.g8a family (16 vCPUs, 64 GiB RAM, 0 GB storage) server offered by Alibaba Cloud with 16 vCPUs, 64 GiB of memory and 0 GB of storage. The pricing starts at 0.6321 USD per hour.
16 vCPU
64 GiB Memory
Spare SCore
24,604
(All-cores)
3,074
(Single-core)

Specifications

Server Metadata

Vendor ID
alicloud
Name
ecs.g8a.4xlarge
Description
ecs.g8a family (16 vCPUs, 64 GiB RAM, 0 GB storage)
Family
ecs.g8a
Hw Virt
Average Time To Start
14.5
Status
active
Observed At
2026-10-24T21:56:32.010798

Availability

REGION / IDSPOTONDEMAND
Shanghai (CN) / cn-shanghai
- 0.6321 USD/h
Shenzhen (CN) / cn-shenzhen
- 0.6321 USD/h

Processor

vCPUs
16
Hypervisor
KVM
CPU Allocation
Dedicated
CPU Cores
8
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
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
64 GiB
Memory Amount Actual
64 GiB
ACCELERATORS
Accelerator Count
0
Accelerator Memory Min
0 MiB
Accelerator Memory Total
0 MiB
Accelerators
    STORAGE
    Storage Size
    0 GB
    Storages
      NETWORK
      Network Speed Baseline
      7 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      A balanced general-purpose instance featuring dedicated AMD EPYC processors, strong single-core performance, and a versatile 1:4 vCPU-to-RAM ratio.

      General Purpose

      Alibaba Cloud ecs.g8a.4xlarge is a general-purpose instance featuring 16 dedicated vCPUs and 64.0 GB of RAM, powered by an AMD EPYC 9T24 processor running at 2.7 GHz. Utilizing the KVM hypervisor, this x86_64 server provides a balanced 1:4 vCPU-to-RAM ratio but lacks local storage and GPU accelerators. Performance benchmarks indicate strong single-core CPU capabilities, placing in the top 25% for stress-ng and Geekbench single-core tests. However, a key tradeoff is its uncached large-block read memory bandwidth, which falls into the bottom 25% at 39.07 GB/sec. Conversely, cached memory reads and multi-core operations perform at average levels. With a baseline network bandwidth of 7 Gbps and support for AVX-512 and cryptographic instructions, this instance is suited for general-purpose workloads such as web serving, application hosting, software compilation, and standard database operations.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.82Score
      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) 1,471,344 ops/sec 1,919,289 ops/sec 0.79 50.00% 50.00% -11.00%
      Redis RPS (pipeline=16, SET) 11,411,552 ops/sec 11,728,058 ops/sec 0.92 20.00% 20.00% -1.70%
      PassMark Memory Mark (composite) 2,723 2,416 1.1 10.00% 10.00% +0.96%
      Memory bandwidth (read, 16 MB ~ L3) 43,292 MB/sec 108,466 MB/sec 0.39 10.00% 10.00% -9.00%
      PassMark single-thread CPU 2,890 Mops/s 2,365 Mops/s 1.2 10.00% 10.00% +1.80%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,006

      Geekbench Multi-Core

      Score: 11,760

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 26,440
      Compression
      		 313,370
      Encryption
      		 19,268
      Extended Instructions
      		 21,890
      Floating Point Maths
      		 42,507
      Integer Maths
      		 75,986
      Physics
      		 2,453
      Prime Numbers
      		 126
      Single Threaded
      		 2,890
      String Sorting
      		 45,666

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2,723
      Database Operations
      		 7,885
      Memory Latency
      		 70
      Memory Read Cached
      		 27,398
      Memory Read Uncached
      		 26,131
      Memory Write
      		 25,904

      Stress-ng Stressors

      CPU integerSingleMultiScaling
      atomic
      		 602.71 322.11 0.53×
      bitops
      		 160,439 1,546,915 9.64×
      branch
      		 212,582 3,046,068 14.33×
      funccall
      		 618.41 6,879 11.12×
      funcret
      		 21,295 252,160 11.84×
      hash
      		 163,204 1,964,518 12.04×
      intmath
      		 66,918 717,081 10.72×
      nop
      		 627,028 5,087,773 8.11×
      prime
      		 482,211 5,072,273 10.52×
      rotate
      		 88,116 706,694 8.02×
      str
      		 1,067,201 10,355,648 9.70×
      wcs
      		 691,533 6,605,708 9.55×
      CryptographySingleMultiScaling
      crypt
      		 3,744 32,288 8.62×
      CompressionSingleMultiScaling
      jpeg
      		 832.69 9,238 11.09×
      zlib
      		 56.86 836.16 14.71×
      HypervisorSingleMultiScaling
      clock
      		 18,540 209,187 11.28×
      clone
      		 455.84 3,028 6.64×
      context
      		 1,777 21,462 12.08×
      cpu-sched
      		 60.39 1,033 17.11×
      eventfd
      		 71,834 854,756 11.90×
      fault
      		 10,799 129,953 12.03×
      fork
      		 4,776 49,406 10.34×
      getrandom
      		 50,069 536,729 10.72×
      hrtimers
      		 233,310 2,012,462 8.63×
      mprotect
      		 1,228,392 2,375,094 1.93×
      mtx
      		 39,749,610 934,681,822 23.51×
      munmap
      		 3,244 35,760 11.03×
      null
      		 193,099 2,223,875 11.52×
      pipe
      		 955,299 5,015,100 5.25×
      priv-instr
      		 328,605 4,052,746 12.33×
      resched
      		 3,789,114 1,754,803 0.46×
      switch
      		 188,131 1,888,137 10.04×
      timermix
      		 185,029 2,440,891 13.19×
      tlb-shootdown
      		 22,373 68,464 3.06×
      tsc
      		 784,174 12,270,611 15.65×
      usersyscall
      		 238,092 2,926,569 12.29×
      vdso
      		 92,471,386 1,196,513,967 12.94×
      vfork
      		 40,999 271,974 6.63×
      x86syscall
      		 2,182,261 25,123,461 11.51×
      yield
      		 7,648,932 8,436,137 1.10×
      zero
      		 1,677,009 19,929,043 11.88×
      CPU float/SIMDSingleMultiScaling
      eigen
      		 16,545 140,128 8.47×
      expmath
      		 2,494 33,250 13.33×
      fma
      		 918,997 12,059,271 13.12×
      fp
      		 251.48 3,094 12.30×
      fractal
      		 7.4 101.21 13.68×
      hyperbolic
      		 3,816 45,735 11.98×
      logmath
      		 4,555 52,211 11.46×
      matrix
      		 4,891 46,283 9.46×
      matrix-3d
      		 485.86 2,159 4.44×
      monte-carlo
      		 107.18 1,207 11.26×
      mpfr
      		 1,695 17,180 10.14×
      powmath
      		 1,314 17,204 13.09×
      trig
      		 1,869 22,855 12.23×
      veccmp
      		 18,978 198,867 10.48×
      vecfp
      		 1,809 21,469 11.87×
      vecmath
      		 4,028 52,154 12.95×
      vecshuf
      		 637.89 6,298 9.87×
      vecwide
      		 28,585 306,117 10.71×
      AlgorithmsSingleMultiScaling
      bitonicsort
      		 10.4 95.4 9.17×
      bsearch
      		 306.18 3,411 11.14×
      bubblesort
      		 0.8 10.2 12.75×
      fibsearch
      		 379.47 3,678 9.69×
      heapsort
      		 11 121.4 11.04×
      hsearch
      		 11,418 98,817 8.65×
      insertionsort
      		 13 105.8 8.14×
      malloc
      		 3,895,446 40,700,271 10.45×
      mcontend
      		 255.65 3,208 12.55×
      mergesort
      		 34.2 405.39 11.85×
      qsort
      		 21.8 252.19 11.57×
      skiplist
      		 7,018 90,867 12.95×
      tree
      		 2 13.19 6.59×
      MemorySingleMultiScaling
      cache
      		 898,306 2,266,321 2.52×
      cachehammer
      		 290,096 4,205,341 14.50×
      cacheline
      		 76.46 1,298 16.97×
      l1cache
      		 247.75 2,333 9.42×
      memcpy
      		 447.58 3,669 8.20×
      memrate
      		 3.9 6.1 1.56×
      memthrash
      		 212.64 583.03 2.74×
      ptr-chase
      		 45,474,959 134,785,969 2.96×
      spinmem
      		 279.39 874.87 3.13×
      stream
      		 136.3 3,267 23.97×
      vm
      		 65,909 293,170 4.45×

      Stress-ng Raw Scores

      Stress-ng Relative Multicore Performance

      Static Web Server

      Redis

      Alternatives

      Servers of the Same Family

      INSTANCEvCPUsMEMORYAccelerators
      ecs.g8a.large 28 GiB0
      ecs.g8a.xlarge 416 GiB0
      ecs.g8a.2xlarge 832 GiB0
      ecs.g8a.8xlarge 32128 GiB0
      ecs.g8a.12xlarge 48192 GiB0
      ecs.g8a.16xlarge 64256 GiB0
      ecs.g8a.24xlarge 96384 GiB0

      Similar Servers

      INSTANCEVENDORvCPUsMEMORYAccelerators

      ecs.g8a.4xlarge FAQs