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E64a_v4 by Microsoft Azure

E64a_v4 is a EAv4 family [AMD processor] 64 vCPUs server offered by Microsoft Azure with 64 vCPUs, 512 GiB of memory and 1.64 TB of storage. The pricing starts at 0.4698 USD per hour.
64 vCPU
512 GiB Memory
1.64 TB Storage
Spare SCore
24190
(All-cores)
777
(Single-core)

Specifications

Server Metadata

Vendor ID
azure
Server ID
Standard_E64a_v4
Name
E64a_v4
API Reference
Standard_E64a_v4
Description
EAv4 family [AMD processor] 64 vCPUs
Family
EAv4
Hw Virt
Average Time To Start
32
Status
active
Observed At
2026-08-05T23:41:21.506311

Availability

REGION / IDSPOTONDEMAND
Central India (IN) / centralindia
0.4698 USD/h 2.542 USD/h
Jio India Central (IN) / jioindiacentral
- 2.542 USD/h
Jio India West (IN) / jioindiawest
- 2.542 USD/h
North Central US (US) / northcentralus
0.7451 USD/h 4.032 USD/h
West US 2 (US) / westus2
0.7451 USD/h 4.032 USD/h
West US 3 (US) / westus3
0.7451 USD/h 4.032 USD/h
East US (US) / eastus
0.8487 USD/h 4.032 USD/h
East US 2 (US) / eastus2
0.8733 USD/h 4.032 USD/h
India South Central (IN) / indiasouthcentral
0.7688 USD/h 4.16 USD/h
Spain Central (ES) / spaincentral
0.7865 USD/h 4.256 USD/h
Sweden Central (SE) / swedencentral
0.7924 USD/h 4.288 USD/h
Indonesia Central (ID) / indonesiacentral
0.8043 USD/h 4.352 USD/h
Malaysia West (MY) / malaysiawest
0.8091 USD/h 4.378 USD/h
Austria East (AT) / austriaeast
0.8102 USD/h 4.384 USD/h
Belgium Central (BE) / belgiumcentral
0.8102 USD/h 4.384 USD/h
Denmark East (DK) / denmarkeast
0.8102 USD/h 4.384 USD/h
Canada Central (CA) / canadacentral
0.8161 USD/h 4.416 USD/h
Canada East (CA) / canadaeast
0.8161 USD/h 4.416 USD/h
Mexico Central (ZA) / mexicocentral
0.8196 USD/h 4.435 USD/h
West US (US) / westus
0.8279 USD/h 4.48 USD/h
North Europe (IE) / northeurope
0.8338 USD/h 4.512 USD/h
Central US (US) / centralus
0.8415 USD/h 4.556 USD/h
Korea South (KR) / koreasouth
0.8516 USD/h 4.608 USD/h
UK South (GB) / uksouth
0.6252 USD/h 4.736 USD/h
France Central (FR) / francecentral
0.8752 USD/h 4.736 USD/h
Israel Central (IL) / israelcentral
0.8752 USD/h 4.736 USD/h
Italy North (IT) / italynorth
0.8752 USD/h 4.736 USD/h
Australia Central 2 (AU) / australiacentral2
0.4832 USD/h 4.832 USD/h
Australia Central (AU) / australiacentral
0.893 USD/h 4.832 USD/h
Australia East (AU) / australiaeast
0.893 USD/h 4.832 USD/h
South Central US (US) / southcentralus
0.8941 USD/h 4.838 USD/h
West Central US (US) / westcentralus
0.8941 USD/h 4.838 USD/h
Germany West Central (DE) / germanywestcentral
0.8989 USD/h 4.864 USD/h
Japan East (JP) / japaneast
0.8989 USD/h 4.864 USD/h
Japan West (JP) / japanwest
0.8989 USD/h 4.864 USD/h
Korea Central (KR) / koreacentral
0.8989 USD/h 4.864 USD/h
Poland Central (PL) / polandcentral
0.8989 USD/h 4.864 USD/h
Southeast Asia (SG) / southeastasia
0.8989 USD/h 4.864 USD/h
West Europe (NL) / westeurope
0.8989 USD/h 4.864 USD/h
UK West (GB) / ukwest
0.9016 USD/h 4.879 USD/h
Qatar Central (QA) / qatarcentral
0.9172 USD/h 4.963 USD/h
UAE North (AE) / uaenorth
0.9172 USD/h 4.963 USD/h
Chile Central (CL) / chilecentral
0.9355 USD/h 5.062 USD/h
New Zealand North (NZ) / newzealandnorth
0.9377 USD/h 5.074 USD/h
West India (IN) / westindia
0.9538 USD/h 5.161 USD/h
Australia Southeast (AU) / australiasoutheast
0.9687 USD/h 5.242 USD/h
East Asia (HK) / eastasia
0.9876 USD/h 5.344 USD/h
South Africa North (ZA) / southafricanorth
0.9935 USD/h 5.376 USD/h
South India (IN) / southindia
1.0506 USD/h 5.685 USD/h
Norway East (NO) / norwayeast
1.0656 USD/h 5.766 USD/h
Switzerland North (CH) / switzerlandnorth
1.0656 USD/h 5.766 USD/h
France South (FR) / francesouth
1.1378 USD/h 6.157 USD/h
Germany North (DE) / germanynorth
1.1685 USD/h 6.323 USD/h
Brazil South (BR) / brazilsouth
1.1886 USD/h 6.432 USD/h
UAE Central (AE) / uaecentral
1.1921 USD/h 6.451 USD/h
South Africa West (ZA) / southafricawest
1.2916 USD/h 6.989 USD/h
Norway West (NO) / norwaywest
1.3851 USD/h 7.495 USD/h
Switzerland West (CH) / switzerlandwest
1.3851 USD/h 7.495 USD/h
Brazil Southeast (US) / brazilsoutheast
1.5453 USD/h 8.362 USD/h

Processor

vCPUs
64
Hypervisor
Microsoft Hyper-V
CPU Allocation
Dedicated
CPU Cores
32
CPU Speed
3.525 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU Model
7452
CPU L1D Cache
32 KiB
CPU L1D Cache Total
1 MiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
1 MiB
CPU L2 Cache
512 KiB
CPU L2 Cache Total
16 MiB
CPU L3 Cache
32 MiB
CPU L3 Cache Total
128 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, rep_good, nopl, cpuid, extd_apicid, pni, pclmulqdq, ssse3, fma, cx16, sse4_1, sse4_2, movbe, popcnt, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, cmp_legacy, cr8_legacy, abm, sse4a, misalignsse, 3dnowprefetch, osvw, topoext, ssbd, vmmcall, fsgsbase, bmi1, avx2, smep, bmi2, rdseed, adx, smap, clflushopt, clwb, sha_ni, xsaveopt, xsavec, xgetbv1, xsaveerptr, arat, umip, rdpid
Ecpus
31.1
Scalability
97.19

System Resources and Accelerators

MEMORY
Memory Amount
512 GiB
Memory Amount Actual
512 GiB
GPU
GPU Count
0
GPU Memory Min
0 MiB
GPU Memory Total
0 MiB
GPUs
    STORAGE
    Storage Size
    1638 GB
    Storages
    • 1638 GB ssd (temp disk)
    NETWORK
    Inbound Traffic
    0 GB/month
    Outbound Traffic
    0 GB/month
    IPv4
    0

    CPU and System Topology

    Server Description

    A memory-optimized x86_64 configuration featuring high memory density, bundled local storage, and strong multi-threaded performance for database workloads.

    Memory OptimizedStorage & DatabaseGeneral Purpose

    Microsoft Azure E64a_v4 is an x86_64 memory-optimized server from the EAv4 family, powered by an AMD EPYC 7452 processor running at 3.525 GHz. It features 64 dedicated vCPUs, 512.0 GB of RAM (8.0 GB per core), and 1638 GB of bundled local storage. While single-core benchmarks, such as stress-ng, rank in the bottom 10%, its multi-threaded performance is robust, with PassMark CPU and memory scores placing in the top 25%. This high memory density and bundled storage make it qualitatively cost-efficient for workloads requiring large memory footprints without the overhead of external storage. The server is suited for database operations, in-memory caching, and multi-threaded data processing, though it presents a tradeoff in single-threaded execution speed.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    1.87Score
    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) 4,593,020 ops/sec 1,910,660 ops/sec 2.4 50.00% 50.00% +54.90%
    Redis RPS (pipeline=16, SET) 28,942,924 ops/sec 11,608,287 ops/sec 2.49 20.00% 20.00% +20.00%
    PassMark Memory Mark (composite) 2,844 2,416 1.18 10.00% 10.00% +1.67%
    Memory bandwidth (read, 16 MB ~ L3) 108,106 MB/sec 107,896 MB/sec 1 10.00% 10.00% 0.00%
    PassMark single-thread CPU 2,129 Mops/s 2,364 Mops/s 0.901 10.00% 10.00% -1.04%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 1,382

    Geekbench Multi-Core

    Score: 11,886

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 52455
    Compression
    		 831909
    Encryption
    		 63026
    Extended Instructions
    		 46785
    Floating Point Maths
    		 125811
    Integer Maths
    		 211641
    Physics
    		 5192
    Prime Numbers
    		 308
    Single Threaded
    		 2129
    String Sorting
    		 106230

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 2844
    Database Operations
    		 20129
    Memory Latency
    		 51
    Memory Read Cached
    		 24797
    Memory Read Uncached
    		 12437
    Memory Write
    		 10824

    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
    E2a_v4 216 GiB0
    E4a_v4 432 GiB0
    E8a_v4 864 GiB0
    E16a_v4 16128 GiB0
    E20a_v4 20160 GiB0
    E32a_v4 32256 GiB0
    E48a_v4 48384 GiB0

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    E64a_v4 FAQs