FX4ms_v2 by Microsoft Azure

FX4ms_v2 is a FXmsv2 family [Memory Intensive] [Premium Storage capable] [Intel processor] 4 vCPUs server offered by Microsoft Azure with 4 vCPUs, 84 GiB of memory and 0 GB of storage. The pricing starts at 0.0819 USD per hour.
4 vCPU
84 GiB Memory
Spare SCore
4,442
(All-cores)
2,167
(Single-core)

Specifications

Server Metadata

Vendor ID
azure
Server ID
Standard_FX4ms_v2
Name
FX4ms_v2
API Reference
Standard_FX4ms_v2
Description
FXmsv2 family [Memory Intensive] [Premium Storage capable] [Intel processor] 4 vCPUs
Family
FXmsv2
Hw Virt
Average Time To Start
15
Status
active
Observed At
2026-11-04T00:17:49.213645

Availability

REGION / IDSPOTONDEMAND
East US 2 (US) / eastus2
0.0819 USD/h 0.443 USD/h
West US 2 (US) / westus2
0.0819 USD/h 0.443 USD/h
West US 3 (US) / westus3
0.0819 USD/h 0.443 USD/h
East US (US) / eastus
0.0971 USD/h 0.443 USD/h
Central India (IN) / centralindia
0.0845 USD/h 0.457 USD/h
Canada Central (CA) / canadacentral
0.09 USD/h 0.487 USD/h
Mexico Central (ZA) / mexicocentral
0.0974 USD/h 0.487 USD/h
Central US (US) / centralus
0.0923 USD/h 0.5 USD/h
Sweden Central (SE) / swedencentral
0.0933 USD/h 0.505 USD/h
Indonesia Central (ID) / indonesiacentral
0.0957 USD/h 0.518 USD/h
Malaysia West (MY) / malaysiawest
0.1036 USD/h 0.518 USD/h
North Europe (IE) / northeurope
0.0981 USD/h 0.531 USD/h
South Central US (US) / southcentralus
0.0981 USD/h 0.531 USD/h
Spain Central (ES) / spaincentral
0.0981 USD/h 0.531 USD/h
West Central US (US) / westcentralus
0.0981 USD/h 0.531 USD/h
North Central US (US) / northcentralus
0.1062 USD/h 0.531 USD/h
UK West (GB) / ukwest
0.0991 USD/h 0.536 USD/h
Qatar Central (QA) / qatarcentral
0.1007 USD/h 0.545 USD/h
UAE North (AE) / uaenorth
0.1007 USD/h 0.545 USD/h
France Central (FR) / francecentral
0.1031 USD/h 0.558 USD/h
UK South (GB) / uksouth
0.1031 USD/h 0.558 USD/h
Canada East (CA) / canadaeast
0.1116 USD/h 0.558 USD/h
Australia Southeast (AU) / australiasoutheast
0.1063 USD/h 0.575 USD/h
Austria East (AT) / austriaeast
0.1063 USD/h 0.575 USD/h
Belgium Central (BE) / belgiumcentral
0.1063 USD/h 0.575 USD/h
Italy North (IT) / italynorth
0.115 USD/h 0.575 USD/h
Poland Central (PL) / polandcentral
0.115 USD/h 0.575 USD/h
West US (US) / westus
0.1064 USD/h 0.576 USD/h
Korea South (KR) / koreasouth
0.1196 USD/h 0.598 USD/h
Chile Central (CL) / chilecentral
0.1146 USD/h 0.62 USD/h
Germany West Central (DE) / germanywestcentral
0.1146 USD/h 0.62 USD/h
West Europe (NL) / westeurope
0.1146 USD/h 0.62 USD/h
South India (IN) / southindia
0.1153 USD/h 0.624 USD/h
South Africa North (ZA) / southafricanorth
0.1168 USD/h 0.632 USD/h
Israel Central (IL) / israelcentral
0.1266 USD/h 0.633 USD/h
UAE Central (AE) / uaecentral
0.1266 USD/h 0.633 USD/h
Australia East (AU) / australiaeast
0.1186 USD/h 0.642 USD/h
Japan East (JP) / japaneast
0.1186 USD/h 0.642 USD/h
Korea Central (KR) / koreacentral
0.1186 USD/h 0.642 USD/h
Southeast Asia (SG) / southeastasia
0.1186 USD/h 0.642 USD/h
Japan West (JP) / japanwest
0.1284 USD/h 0.642 USD/h
Australia Central (AU) / australiacentral
0.1302 USD/h 0.651 USD/h
Australia Central 2 (AU) / australiacentral2
0.1302 USD/h 0.651 USD/h
New Zealand North (NZ) / newzealandnorth
0.1246 USD/h 0.674 USD/h
Switzerland North (CH) / switzerlandnorth
0.126 USD/h 0.682 USD/h
East Asia (HK) / eastasia
0.1372 USD/h 0.686 USD/h
Norway East (NO) / norwayeast
0.1382 USD/h 0.691 USD/h
West India (IN) / westindia
0.1382 USD/h 0.691 USD/h
Germany North (DE) / germanynorth
0.1489 USD/h 0.806 USD/h
France South (FR) / francesouth
0.1646 USD/h 0.823 USD/h
Norway West (NO) / norwaywest
0.1646 USD/h 0.823 USD/h
South Africa West (ZA) / southafricawest
0.1646 USD/h 0.823 USD/h
Switzerland West (CH) / switzerlandwest
0.1646 USD/h 0.823 USD/h
Brazil South (BR) / brazilsouth
0.1595 USD/h 0.863 USD/h
Brazil Southeast (US) / brazilsoutheast
0.2302 USD/h 1.151 USD/h

Processor

vCPUs
4
Hypervisor
Microsoft Hyper-V
CPU Allocation
Dedicated
CPU Cores
2
CPU Speed
4.2 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
8573C
CPU L1D Cache
48 KiB
CPU L1D Cache Total
96 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
64 KiB
CPU L2 Cache
2 MiB
CPU L2 Cache Total
4 MiB
CPU L3 Cache
260 MiB
CPU L3 Cache Total
260 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, tsc_reliable, nonstop_tsc, cpuid, aperfmperf, tsc_known_freq, pni, pclmulqdq, vmx, ssse3, fma, cx16, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, tsc_deadline_timer, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, abm, 3dnowprefetch, tpr_shadow, ept, vpid, ept_ad, fsgsbase, tsc_adjust, bmi1, hle, avx2, smep, bmi2, erms, invpcid, rtm, avx512f, avx512dq, rdseed, adx, smap, avx512ifma, clflushopt, clwb, avx512cd, sha_ni, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, user_shstk, avx_vnni, avx512_bf16, vnmi, avx512vbmi, umip, waitpkg, avx512_vbmi2, gfni, vaes, vpclmulqdq, avx512_vnni, avx512_bitalg, avx512_vpopcntdq, la57, rdpid, cldemote, movdiri, movdir64b, fsrm, serialize, tsxldtrk, ibt, amx_bf16, avx512_fp16, amx_tile, amx_int8, arch_capabilities
Ecpus
2
Scalability
50

System Resources and Accelerators

MEMORY
Memory Amount
84 GiB
Memory Amount Actual
84 GiB
ACCELERATORS
Accelerator Count
0
Accelerator Memory Min
0 MiB
Accelerator Memory Total
0 MiB
Accelerators
    STORAGE
    Storage Size
    0 GB
    Storages
      NETWORK
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      A memory-intensive virtual machine featuring high single-core clock speeds and an exceptional memory-to-vCPU ratio for caching and database workloads.

      Memory OptimizedGeneral Purpose

      Microsoft Azure FX4ms_v2 is a memory-optimized virtual machine featuring 4 dedicated vCPUs and 84.0 GB of RAM, powered by an Intel Xeon 8573C processor running at 4.2 GHz on the Microsoft Hyper-V hypervisor. This configuration provides an exceptionally high memory-to-core ratio of 21.0 GB per core. While single-core performance is strong, as evidenced by a top-tier Geekbench single-core score of 2353.0, multi-core and large-block memory bandwidth benchmarks show moderate limitations. The server does not include local storage or integrated GPUs but supports premium external storage. It is highly suitable for memory-intensive workloads such as in-memory databases, caching layers, and text processing applications that benefit from high single-thread performance and a large memory footprint without requiring extensive parallel compute resources.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.53Score
      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) 853,319 ops/sec 1,930,206 ops/sec 0.45 50.00% 50.00% -33.00%
      Redis RPS (pipeline=16, SET) 4,317,190 ops/sec 11,792,140 ops/sec 0.36 20.00% 20.00% -18.00%
      PassMark Memory Mark (composite) 2,273 2,412 0.96 10.00% 10.00% -0.41%
      Memory bandwidth (read, 16 MB ~ L3) 68,903 MB/sec 108,490 MB/sec 0.63 10.00% 10.00% -4.50%
      PassMark single-thread CPU 3,241 Mops/s 2,365 Mops/s 1.3 10.00% 10.00% +2.70%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,353

      Geekbench Multi-Core

      Score: 5,280

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 8,146
      Compression
      		 77,979
      Encryption
      		 4,670
      Extended Instructions
      		 6,074
      Floating Point Maths
      		 15,073
      Integer Maths
      		 21,264
      Physics
      		 1,032
      Prime Numbers
      		 43
      Single Threaded
      		 3,241
      String Sorting
      		 10,667

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2,273
      Database Operations
      		 3,080
      Memory Latency
      		 62
      Memory Read Cached
      		 29,023
      Memory Read Uncached
      		 10,264
      Memory Write
      		 9,421

      Stress-ng Stressors

      CPU integerSingleMultiScaling
      atomic
      		 268.9 289 1.07×
      bitops
      		 166,318 402,325 2.42×
      branch
      		 156,088 484,027 3.10×
      funccall
      		 846.16 2,231 2.64×
      funcret
      		 14,142 44,063 3.12×
      hash
      		 198,942 576,215 2.90×
      intmath
      		 73,338 169,464 2.31×
      nop
      		 295,085 471,612 1.60×
      prime
      		 528,683 1,282,255 2.43×
      rotate
      		 111,290 238,044 2.14×
      str
      		 955,011 3,160,816 3.31×
      wcs
      		 762,849 1,876,129 2.46×
      CryptographySingleMultiScaling
      crypt
      		 3,791 8,716 2.30×
      CompressionSingleMultiScaling
      jpeg
      		 921.42 2,454 2.66×
      zlib
      		 65.07 234.19 3.60×
      HypervisorSingleMultiScaling
      clock
      		 45,225 127,461 2.82×
      clone
      		 1,390 3,345 2.41×
      context
      		 5,963 19,646 3.29×
      cpu-sched
      		 61.09 260.14 4.26×
      eventfd
      		 34,898 545,417 15.63×
      fault
      		 27,106 61,364 2.26×
      fork
      		 6,583 18,851 2.86×
      getrandom
      		 65,711 195,806 2.98×
      hrtimers
      		 193,415 620,662 3.21×
      mprotect
      		 1,174,237 1,618,547 1.38×
      mtx
      		 29,203,805 159,135,828 5.45×
      munmap
      		 5,244 15,385 2.93×
      null
      		 970,055 3,064,658 3.16×
      pipe
      		 775,200 3,857,136 4.98×
      priv-instr
      		 959,638 2,611,484 2.72×
      resched
      		 1,478,051 616,121 0.42×
      switch
      		 97,037 1,310,717 13.51×
      timermix
      		 269,140 869,820 3.23×
      tlb-shootdown
      		 7,971 10,434 1.31×
      tsc
      		 1,018,539 3,115,551 3.06×
      usersyscall
      		 812,091 2,258,925 2.78×
      vdso
      		 119,189,002 349,487,879 2.93×
      vfork
      		 30,299 130,546 4.31×
      x86syscall
      		 11,708,712 39,708,781 3.39×
      yield
      		 4,190,307 3,932,390 0.94×
      zero
      		 6,506,331 21,731,401 3.34×
      CPU float/SIMDSingleMultiScaling
      eigen
      		 18,066 47,907 2.65×
      expmath
      		 3,941 11,470 2.91×
      fma
      		 1,455,000 3,815,638 2.62×
      fp
      		 245.82 673.02 2.74×
      fractal
      		 7.2 21 2.92×
      hyperbolic
      		 4,545 13,088 2.88×
      logmath
      		 5,815 18,417 3.17×
      matrix
      		 5,763 13,435 2.33×
      matrix-3d
      		 743.95 1,870 2.51×
      monte-carlo
      		 333.84 1,089 3.26×
      mpfr
      		 1,956 4,596 2.35×
      powmath
      		 2,198 6,635 3.02×
      trig
      		 2,996 7,904 2.64×
      veccmp
      		 28,002 64,802 2.31×
      vecfp
      		 1,728 4,409 2.55×
      vecmath
      		 4,394 12,321 2.80×
      vecshuf
      		 923.82 2,115 2.29×
      vecwide
      		 40,043 98,080 2.45×
      AlgorithmsSingleMultiScaling
      bitonicsort
      		 10 24 2.40×
      bsearch
      		 322.16 825.76 2.56×
      bubblesort
      		 1.2 3.2 2.67×
      fibsearch
      		 361.2 901.62 2.50×
      heapsort
      		 11.2 31 2.77×
      hsearch
      		 9,413 23,161 2.46×
      insertionsort
      		 14.2 25.2 1.77×
      malloc
      		 3,132,559 11,716,627 3.74×
      mcontend
      		 131.49 805.31 6.12×
      mergesort
      		 34.2 98.8 2.89×
      qsort
      		 24.4 68.8 2.82×
      skiplist
      		 6,113 19,329 3.16×
      tree
      		 2 5.6 2.80×
      MemorySingleMultiScaling
      cache
      		 370,484 540,893 1.46×
      cachehammer
      		 229,072 769,603 3.36×
      cacheline
      		 54.7 236.58 4.33×
      l1cache
      		 1,215 939.03 0.77×
      memcpy
      		 496.32 1,009 2.03×
      memrate
      		 0.13 0.52 4.00×
      memthrash
      		 59.95 194.42 3.24×
      ptr-chase
      		 36,302,830 134,141,685 3.70×
      spinmem
      		 374.39 176.76 0.47×
      stream
      		 6.68 66.34 9.93×
      vm
      		 202,641 291,478 1.44×

      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

      INSTANCEvCPUsMEMORYAccelerators
      FX2ms_v2 242 GiB0
      FX4-2ms_v2 284 GiB0
      FX8-2ms_v2 2168 GiB0
      FX8-4ms_v2 4168 GiB0
      FX16-4ms_v2 4336 GiB0
      FX12-6ms_v2 6252 GiB0
      FX24-6ms_v2 6504 GiB0

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      FX4ms_v2 FAQs