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L4as_v4 by Microsoft Azure

L4as_v4 is a Lasv4 family [AMD processor] [Premium Storage capable] 4 vCPUs server offered by Microsoft Azure with 4 vCPUs, 32 GiB of memory and 960 GB of storage. The pricing starts at 0.0634 USD per hour.
4 vCPU
32 GiB Memory
960 GB Storage
Spare SCore
6154
(All-cores)
3078
(Single-core)

Specifications

Server Metadata

Vendor ID
azure
Server ID
Standard_L4as_v4
Name
L4as_v4
API Reference
Standard_L4as_v4
Description
Lasv4 family [AMD processor] [Premium Storage capable] 4 vCPUs
Family
Lasv4
Hw Virt
Status
active
Observed At
2026-07-20T16:20:25.328754

Availability

REGION / IDSPOTONDEMAND
North Central US (US) / northcentralus
0.0634 USD/h 0.343 USD/h
East US 2 (US) / eastus2
0.0636 USD/h 0.344 USD/h
West US 2 (US) / westus2
0.0636 USD/h 0.344 USD/h
West US 3 (US) / westus3
0.0636 USD/h 0.344 USD/h
East US (US) / eastus
0.0721 USD/h 0.344 USD/h
Sweden Central (SE) / swedencentral
0.0663 USD/h 0.359 USD/h
Indonesia Central (ID) / indonesiacentral
0.0669 USD/h 0.362 USD/h
Canada Central (CA) / canadacentral
0.0699 USD/h 0.378 USD/h
Mexico Central (ZA) / mexicocentral
0.0699 USD/h 0.378 USD/h
Spain Central (ES) / spaincentral
0.0699 USD/h 0.378 USD/h
North Europe (IE) / northeurope
0.0702 USD/h 0.38 USD/h
West US (US) / westus
0.0702 USD/h 0.38 USD/h
Central US (US) / centralus
0.0716 USD/h 0.388 USD/h
Central India (IN) / centralindia
0.0719 USD/h 0.389 USD/h
France Central (FR) / francecentral
0.0736 USD/h 0.398 USD/h
Italy North (IT) / italynorth
0.0736 USD/h 0.398 USD/h
UK South (GB) / uksouth
0.0739 USD/h 0.4 USD/h
Japan East (JP) / japaneast
0.0745 USD/h 0.403 USD/h
Korea Central (KR) / koreacentral
0.0745 USD/h 0.403 USD/h
West Europe (NL) / westeurope
0.0754 USD/h 0.408 USD/h
Austria East (AT) / austriaeast
0.0756 USD/h 0.409 USD/h
Belgium Central (BE) / belgiumcentral
0.0756 USD/h 0.409 USD/h
Germany West Central (DE) / germanywestcentral
0.0756 USD/h 0.409 USD/h
Poland Central (PL) / polandcentral
0.0756 USD/h 0.409 USD/h
Australia East (AU) / australiaeast
0.076 USD/h 0.411 USD/h
Southeast Asia (SG) / southeastasia
0.076 USD/h 0.411 USD/h
New Zealand North (NZ) / newzealandnorth
0.0761 USD/h 0.412 USD/h
South Central US (US) / southcentralus
0.0761 USD/h 0.412 USD/h
West Central US (US) / westcentralus
0.0843 USD/h 0.413 USD/h
UAE North (AE) / uaenorth
0.0769 USD/h 0.416 USD/h
Denmark East (DK) / denmarkeast
0.0826 USD/h 0.447 USD/h
Switzerland North (CH) / switzerlandnorth
0.0832 USD/h 0.45 USD/h
South Africa North (ZA) / southafricanorth
0.0833 USD/h 0.451 USD/h
East Asia (HK) / eastasia
0.0837 USD/h 0.453 USD/h
Chile Central (CL) / chilecentral
0.0891 USD/h 0.482 USD/h
Norway East (NO) / norwayeast
0.0907 USD/h 0.491 USD/h
Brazil South (BR) / brazilsouth
0.1013 USD/h 0.548 USD/h

Processor

vCPUs
4
Hypervisor
Microsoft Hyper-V
CPU Allocation
Dedicated
CPU Cores
2
CPU Speed
3.7 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU Model
9V74
CPU L1D Cache
32 KiB
CPU L1D Cache Total
64 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
64 KiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
2 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, nopl, xtopology, tsc_reliable, nonstop_tsc, cpuid, extd_apicid, aperfmperf, tsc_known_freq, pni, pclmulqdq, ssse3, fma, cx16, pcid, sse4_1, sse4_2, movbe, popcnt, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, cmp_legacy, svm, cr8_legacy, abm, sse4a, misalignsse, 3dnowprefetch, osvw, topoext, vmmcall, fsgsbase, bmi1, avx2, smep, bmi2, erms, invpcid, avx512f, avx512dq, rdseed, adx, smap, avx512ifma, clflushopt, clwb, avx512cd, sha_ni, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, user_shstk, avx512_bf16, clzero, xsaveerptr, rdpru, arat, npt, nrip_save, tsc_scale, vmcb_clean, flushbyasid, decodeassists, pausefilter, pfthreshold, v_vmsave_vmload, avx512vbmi, umip, avx512_vbmi2, gfni, vaes, vpclmulqdq, avx512_vnni, avx512_bitalg, avx512_vpopcntdq, rdpid, fsrm
Ecpus
2
Scalability
100

System Resources and Accelerators

MEMORY
Memory Amount
32 GiB
Memory Amount Actual
32 GiB
GPU
GPU Count
0
GPU Memory Min
0 MiB
GPU Memory Total
0 MiB
GPUs
    STORAGE
    Storage Size
    960 GB
    Storages
    • 0 GB ssd (temp disk)
    • 960 GB nvme ssd
    NETWORK
    Inbound Traffic
    0 GB/month
    Outbound Traffic
    0 GB/month
    IPv4
    0

    Server Description

    A memory-optimized virtual machine featuring strong single-core performance, bundled local storage, and a high memory-to-vCPU ratio for targeted workloads.

    Memory OptimizedStorage & Database

    Microsoft Azure L4as_v4 is a memory-optimized virtual machine from the Lasv4 family, featuring an AMD EPYC 9V74 processor with 4 vCPUs (2 physical cores) running at 3.7 GHz. It is configured with 32.0 GB of RAM and 960 GB of Premium Storage capable local storage, operating under the Microsoft Hyper-V hypervisor. While the instance delivers strong single-core CPU and text processing performance, benchmarks reveal tradeoffs, including weak read-only memory bandwidth and below-average multi-threaded scaling. Consequently, database operations and software compilation perform in the bottom 25%. This server is qualitatively cost-efficient for memory-intensive, single-threaded workloads, static web serving, and small-scale text processing, but is less optimal for high-throughput database systems or intensive multi-threaded computing.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    0.362Score
    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) 426,438 ops/sec 1,895,870 ops/sec 0.225 50.00% 50.00% -52.60%
    Redis RPS (pipeline=16, SET) 3,486,167 ops/sec 11,503,938 ops/sec 0.303 20.00% 20.00% -21.20%
    PassMark Memory Mark (composite) 2,313 2,410 0.96 10.00% 10.00% -0.41%
    Memory bandwidth (read, 16 MB ~ L3) 66,817 MB/sec 107,331 MB/sec 0.623 10.00% 10.00% -4.62%
    PassMark single-thread CPU 2,899 Mops/s 2,363 Mops/s 1.23 10.00% 10.00% +2.09%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 2,079

    Geekbench Multi-Core

    Score: 4,766

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		7548
    Compression
    		79456
    Encryption
    		4820
    Extended Instructions
    		5356
    Floating Point Maths
    		10611
    Integer Maths
    		18944
    Physics
    		924
    Prime Numbers
    		47
    Single Threaded
    		2899
    String Sorting
    		11585

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		2313
    Database Operations
    		1939
    Memory Latency
    		81
    Memory Read Cached
    		27752
    Memory Read Uncached
    		26187
    Memory Write
    		25464

    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
    L2as_v4 216 GiB0
    L8as_v4 864 GiB0
    L16as_v4 16128 GiB0
    L32as_v4 32256 GiB0
    L48as_v4 48384 GiB0
    L64as_v4 64512 GiB0
    L80as_v4 80640 GiB0

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    L4as_v4 FAQs