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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
13338
(All-cores)
2169
(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
2026-08-06T11:36:37.794482

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
0.2787 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
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
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 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
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
West US (US) / westus
0.3191 USD/h 1.727 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
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
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
Germany North (DE) / germanynorth
0.4468 USD/h 2.418 USD/h
Brazil South (BR) / brazilsouth
0.4786 USD/h 2.59 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
101.67

System Resources and Accelerators

MEMORY
Memory Amount
252 GiB
Memory Amount Actual
252 GiB
GPU
GPU Count
0
GPU Memory Min
0 MiB
GPU Memory Total
0 MiB
GPUs
    STORAGE
    Storage Size
    0 GB
    Storages
    • 0 GB ssd (temp disk)
    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

    1.31Score
    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 1,910,660 ops/sec 1.34 50.00% 50.00% +15.80%
    Redis RPS (pipeline=16, SET) 12,917,339 ops/sec 11,608,287 ops/sec 1.11 20.00% 20.00% +2.11%
    PassMark Memory Mark (composite) 2,508 2,416 1.04 10.00% 10.00% +0.39%
    Memory bandwidth (read, 16 MB ~ L3) 202,307 MB/sec 107,896 MB/sec 1.88 10.00% 10.00% +6.52%
    PassMark single-thread CPU 3,251 Mops/s 2,364 Mops/s 1.38 10.00% 10.00% +3.27%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 2,349

    Geekbench Multi-Core

    Score: 11,866

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 22837
    Compression
    		 229373
    Encryption
    		 14061
    Extended Instructions
    		 18794
    Floating Point Maths
    		 45279
    Integer Maths
    		 63884
    Physics
    		 3006
    Prime Numbers
    		 125
    Single Threaded
    		 3251
    String Sorting
    		 32045

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 2508
    Database Operations
    		 7848
    Memory Latency
    		 61
    Memory Read Cached
    		 29105
    Memory Read Uncached
    		 10386
    Memory Write
    		 9349

    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

    INSTANCEvCPUsMEMORYGPUs
    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