FX12ms_v2 by Microsoft Azure

FX12ms_v2 is a FXmsv2 family [Memory Intensive] [Premium Storage capable] [Intel processor] 12 vCPUs server offered by Microsoft Azure with 12 vCPUs, 252 GiB of memory and 0 GB of storage. The pricing starts at 0.2454 USD per hour.
12 vCPU
252 GiB Memory
Spare SCore
13,338
(All-cores)
2,169
(Single-core)

Specifications

Server Metadata

Vendor ID
azure
Server ID
Standard_FX12ms_v2
Name
FX12ms_v2
API Reference
Standard_FX12ms_v2
Description
FXmsv2 family [Memory Intensive] [Premium Storage capable] [Intel processor] 12 vCPUs
Family
FXmsv2
Hw Virt
Status
active
Observed At
2026-11-05T00:51:45.767025

Availability

REGION / IDSPOTONDEMAND
East US 2 (US) / eastus2
0.2454 USD/h 1.328 USD/h
West US 2 (US) / westus2
0.2454 USD/h 1.328 USD/h
West US 3 (US) / westus3
0.2454 USD/h 1.328 USD/h
East US (US) / eastus
0.2911 USD/h 1.328 USD/h
Central India (IN) / centralindia
0.2532 USD/h 1.37 USD/h
Canada Central (CA) / canadacentral
0.27 USD/h 1.461 USD/h
Mexico Central (ZA) / mexicocentral
0.2922 USD/h 1.461 USD/h
Central US (US) / centralus
0.2771 USD/h 1.501 USD/h
Sweden Central (SE) / swedencentral
0.28 USD/h 1.515 USD/h
Indonesia Central (ID) / indonesiacentral
0.2872 USD/h 1.554 USD/h
Malaysia West (MY) / malaysiawest
0.3108 USD/h 1.554 USD/h
South Central US (US) / southcentralus
0.2944 USD/h 1.593 USD/h
West Central US (US) / westcentralus
0.2944 USD/h 1.593 USD/h
North Central US (US) / northcentralus
0.3186 USD/h 1.593 USD/h
North Europe (IE) / northeurope
0.2946 USD/h 1.594 USD/h
Spain Central (ES) / spaincentral
0.2946 USD/h 1.594 USD/h
UK West (GB) / ukwest
0.297 USD/h 1.607 USD/h
Qatar Central (QA) / qatarcentral
0.302 USD/h 1.634 USD/h
UAE North (AE) / uaenorth
0.302 USD/h 1.634 USD/h
Canada East (CA) / canadaeast
0.3346 USD/h 1.673 USD/h
France Central (FR) / francecentral
0.3094 USD/h 1.674 USD/h
UK South (GB) / uksouth
0.3094 USD/h 1.674 USD/h
Australia Southeast (AU) / australiasoutheast
0.319 USD/h 1.726 USD/h
Austria East (AT) / austriaeast
0.319 USD/h 1.726 USD/h
Belgium Central (BE) / belgiumcentral
0.319 USD/h 1.726 USD/h
Italy North (IT) / italynorth
0.3452 USD/h 1.726 USD/h
Poland Central (PL) / polandcentral
0.3452 USD/h 1.726 USD/h
West US (US) / westus
0.3191 USD/h 1.727 USD/h
Korea South (KR) / koreasouth
0.3586 USD/h 1.793 USD/h
Chile Central (CL) / chilecentral
0.3435 USD/h 1.859 USD/h
Germany West Central (DE) / germanywestcentral
0.3437 USD/h 1.86 USD/h
West Europe (NL) / westeurope
0.3437 USD/h 1.86 USD/h
South India (IN) / southindia
0.3459 USD/h 1.872 USD/h
South Africa North (ZA) / southafricanorth
0.3506 USD/h 1.897 USD/h
Israel Central (IL) / israelcentral
0.3798 USD/h 1.899 USD/h
UAE Central (AE) / uaecentral
0.3798 USD/h 1.899 USD/h
Japan West (JP) / japanwest
0.385 USD/h 1.925 USD/h
Australia East (AU) / australiaeast
0.3559 USD/h 1.926 USD/h
Japan East (JP) / japaneast
0.3559 USD/h 1.926 USD/h
Korea Central (KR) / koreacentral
0.3559 USD/h 1.926 USD/h
Southeast Asia (SG) / southeastasia
0.3559 USD/h 1.926 USD/h
Australia Central (AU) / australiacentral
0.3904 USD/h 1.952 USD/h
Australia Central 2 (AU) / australiacentral2
0.3904 USD/h 1.952 USD/h
New Zealand North (NZ) / newzealandnorth
0.3737 USD/h 2.022 USD/h
Switzerland North (CH) / switzerlandnorth
0.3781 USD/h 2.046 USD/h
East Asia (HK) / eastasia
0.4116 USD/h 2.058 USD/h
Norway East (NO) / norwayeast
0.4144 USD/h 2.072 USD/h
West India (IN) / westindia
0.4144 USD/h 2.072 USD/h
Germany North (DE) / germanynorth
0.4468 USD/h 2.418 USD/h
France South (FR) / francesouth
0.494 USD/h 2.47 USD/h
Norway West (NO) / norwaywest
0.494 USD/h 2.47 USD/h
South Africa West (ZA) / southafricawest
0.494 USD/h 2.47 USD/h
Switzerland West (CH) / switzerlandwest
0.494 USD/h 2.47 USD/h
Brazil South (BR) / brazilsouth
0.4786 USD/h 2.59 USD/h
Brazil Southeast (US) / brazilsoutheast
0.6906 USD/h 3.453 USD/h

Processor

vCPUs
12
Hypervisor
Microsoft Hyper-V
CPU Allocation
Dedicated
CPU Cores
6
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
288 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
192 KiB
CPU L2 Cache
2 MiB
CPU L2 Cache Total
12 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
6.1
Scalability
50.83

System Resources and Accelerators

MEMORY
Memory Amount
252 GiB
Memory Amount Actual
252 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

      Server Description

      A memory-dense virtual server featuring high-frequency single-core performance and advanced matrix extensions for memory-intensive enterprise workloads.

      Memory OptimizedCompute Optimized

      The Microsoft Azure FX12ms_v2 is a memory-optimized virtual machine featuring 12 vCPUs and 252.0 GB of RAM, powered by a dedicated 4.2 GHz Intel Xeon 8573C processor. Operating on the Microsoft Hyper-V hypervisor, this x86_64 server provides a high memory-to-vCPU ratio of 21.0 GB per core and a substantial 260 MB L3 cache. It lacks local storage and GPU accelerators, relying instead on remote premium storage. Benchmark data indicates top-tier single-core performance, with a Geekbench single-core score of 2349.0 and strong single-threaded compression speeds. Conversely, multi-core and memory bandwidth metrics align with average tiers. The server is suited for memory-intensive databases, text processing, single-threaded compression, and small-scale LLM inference utilizing its built-in Advanced Matrix Extensions.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1.3Score
      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) 2,565,543 ops/sec 1,933,252 ops/sec 1.4 50.00% 50.00% +18.00%
      Redis RPS (pipeline=16, SET) 12,917,339 ops/sec 11,794,699 ops/sec 1.1 20.00% 20.00% +1.90%
      PassMark Memory Mark (composite) 2,508 2,410 1 10.00% 10.00% 0.00%
      Memory bandwidth (read, 16 MB ~ L3) 202,307 MB/sec 108,490 MB/sec 1.8 10.00% 10.00% +6.10%
      PassMark single-thread CPU 3,251 Mops/s 2,365 Mops/s 1.4 10.00% 10.00% +3.40%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,349

      Geekbench Multi-Core

      Score: 11,866

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 22,837
      Compression
      		 229,373
      Encryption
      		 14,061
      Extended Instructions
      		 18,794
      Floating Point Maths
      		 45,279
      Integer Maths
      		 63,884
      Physics
      		 3,006
      Prime Numbers
      		 125
      Single Threaded
      		 3,251
      String Sorting
      		 32,045

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2,508
      Database Operations
      		 7,848
      Memory Latency
      		 61
      Memory Read Cached
      		 29,105
      Memory Read Uncached
      		 10,386
      Memory Write
      		 9,349

      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
      FX4ms_v2 484 GiB0
      FX8-4ms_v2 4168 GiB0
      FX16-4ms_v2 4336 GiB0
      FX12-6ms_v2 6252 GiB0

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      FX12ms_v2 FAQs