D128as_v7 by Microsoft Azure
(All-cores)
(Single-core)
Specifications
Server Metadata
Vendor ID | azure |
Server ID | Standard_D128as_v7 |
Name | D128as_v7 |
API Reference | Standard_D128as_v7 |
Description | Dasv7 family [AMD processor] [Premium Storage capable] 128 vCPUs |
Family | Dasv7 |
Hw Virt | |
Average Time To Start | 13.5 |
Status | active |
Observed At | 2026-10-23T08:16:31.725084 |
Availability
| REGION / ID | SPOT | ONDEMAND |
|---|---|---|
Central India (IN) / centralindia | 0.693 USD/h | 3.75 USD/h |
Jio India West (IN) / jioindiawest | - | 3.75 USD/h |
Central US (US) / centralus | 1.0721 USD/h | 5.811 USD/h |
East US 2 (US) / eastus2 | 1.0739 USD/h | 5.811 USD/h |
North Central US (US) / northcentralus | 1.0739 USD/h | 5.811 USD/h |
West US 2 (US) / westus2 | 1.0739 USD/h | 5.811 USD/h |
West US 3 (US) / westus3 | 1.0739 USD/h | 5.811 USD/h |
East US (US) / eastus | 1.1273 USD/h | 5.811 USD/h |
Sweden Central (SE) / swedencentral | 1.1472 USD/h | 6.208 USD/h |
Mexico Central (ZA) / mexicocentral | 1.1803 USD/h | 6.387 USD/h |
Canada Central (CA) / canadacentral | 1.1969 USD/h | 6.477 USD/h |
North Europe (IE) / northeurope | 1.1969 USD/h | 6.477 USD/h |
UK South (GB) / uksouth | 1.2489 USD/h | 6.758 USD/h |
France Central (FR) / francecentral | 1.2607 USD/h | 6.822 USD/h |
Italy North (IT) / italynorth | 1.2607 USD/h | 6.822 USD/h |
Spain Central (ES) / spaincentral | 1.2607 USD/h | 6.822 USD/h |
West US (US) / westus | 1.2607 USD/h | 6.822 USD/h |
South Central US (US) / southcentralus | 1.2844 USD/h | 6.95 USD/h |
Germany West Central (DE) / germanywestcentral | 1.2986 USD/h | 7.027 USD/h |
West Europe (NL) / westeurope | 1.2986 USD/h | 7.027 USD/h |
Poland Central (PL) / polandcentral | 1.301 USD/h | 7.04 USD/h |
Korea Central (KR) / koreacentral | 1.3222 USD/h | 7.155 USD/h |
UAE North (AE) / uaenorth | 1.3222 USD/h | 7.155 USD/h |
Australia East (AU) / australiaeast | 1.3483 USD/h | 7.296 USD/h |
Southeast Asia (SG) / southeastasia | 1.3483 USD/h | 7.296 USD/h |
Japan East (JP) / japaneast | 1.398 USD/h | 7.565 USD/h |
Japan West (JP) / japanwest | 1.398 USD/h | 7.565 USD/h |
South Africa North (ZA) / southafricanorth | 1.4359 USD/h | 7.77 USD/h |
East Asia (HK) / eastasia | 1.4854 USD/h | 8.038 USD/h |
Norway East (NO) / norwayeast | 1.5351 USD/h | 8.307 USD/h |
Switzerland North (CH) / switzerlandnorth | 1.5351 USD/h | 8.307 USD/h |
Brazil South (BR) / brazilsouth | 1.722 USD/h | 9.318 USD/h |
Processor
vCPUs | 128 |
Hypervisor | Microsoft Hyper-V |
CPU Allocation | Dedicated |
CPU Cores | 64 |
CPU Speed | 4.5 GHz |
CPU Architecture | x86_64 |
CPU Manufacturer | AMD |
CPU Family | EPYC |
CPU Model | 9V45 |
CPU L1D Cache | 48 KiB |
CPU L1D Cache Total | 3 MiB |
CPU L1I Cache | 32 KiB |
CPU L1I Cache Total | 2 MiB |
CPU L2 Cache | 1 MiB |
CPU L2 Cache Total | 64 MiB |
CPU L3 Cache | 32 MiB |
CPU L3 Cache Total | 256 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, x2apic, 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, avx_vnni, 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, avx512_vp2intersect |
Ecpus | 61.6 |
Scalability | 48.12 |
System Resources and Accelerators
| MEMORY | |
|---|---|
Memory Amount | 512 GiB |
Memory Amount Actual | 512 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 high-density, general-purpose virtual machine delivering top-tier AMD EPYC compute performance and balanced memory for demanding multi-threaded enterprise workloads.
Microsoft Azure D128as_v7 is a general-purpose virtual machine from the Dasv7 family, powered by a dedicated AMD EPYC 9V45 processor. Utilizing the x86_64 architecture, it features 128 vCPUs across 64 physical cores with hyper-threading, operating at 4.5 GHz. The system includes 512 GB of RAM, yielding a balanced 4.0 GB per core. While it lacks local storage and GPUs, it supports Premium Storage for external disk attachment. Benchmarks place this server in the top 10% for multi-core CPU performance, memory bandwidth, and database operations, with strong results in LLM inference. This high resource density makes it a cost-efficient option for multi-threaded workloads. It is highly suited for large-scale web serving, software compilation, database management, and CPU-based machine learning.
Economics
Performance
Memory Bandwidth
Compression
OpenSSL
Geekbench Single-Core
Geekbench Multi-Core
Passmark CPU Scores
| BENCHMARK | SCORE |
|---|---|
Mark | 134,135 |
Compression | 2,522,780 |
Encryption | 150,229 |
Extended Instructions | 174,575 |
Floating Point Maths | 464,428 |
Integer Maths | 788,456 |
Physics | 19,916 |
Prime Numbers | 1,086 |
Single Threaded | 3,791 |
String Sorting | 314,180 |
Passmark Memory Scores
| BENCHMARK | SCORE |
|---|---|
Memory Mark | 2,940 |
Database Operations | 39,574 |
Memory Latency | 81 |
Memory Read Cached | 34,107 |
Memory Read Uncached | 30,454 |
Memory Write | 30,469 |
Stress-ng Stressors
| CPU integer | Single | Multi | Scaling |
|---|---|---|---|
atomic | 572 | 253.6 | 0.44× |
bitops | 230,743 | 14,282,123 | 61.90× |
branch | 173,462 | 16,624,272 | 95.84× |
funccall | 911.13 | 61,608 | 67.62× |
funcret | 27,998 | 2,009,827 | 71.78× |
hash | 217,987 | 18,080,962 | 82.95× |
intmath | 80,726 | 5,902,400 | 73.12× |
nop | 431,422 | 30,545,522 | 70.80× |
prime | 618,893 | 43,319,530 | 70.00× |
rotate | 142,831 | 8,289,144 | 58.03× |
str | 1,619,931 | 87,827,646 | 54.22× |
wcs | 1,028,638 | 54,436,102 | 52.92× |
| Cryptography | Single | Multi | Scaling |
|---|---|---|---|
crypt | 5,476 | 306,099 | 55.90× |
| Compression | Single | Multi | Scaling |
|---|---|---|---|
jpeg | 1,207 | 69,115 | 57.28× |
zlib | 99.23 | 7,388 | 74.45× |
| Hypervisor | Single | Multi | Scaling |
|---|---|---|---|
clock | 20,804 | 133,974 | 6.44× |
clone | 1,131 | 36,790 | 32.53× |
context | 5,659 | 543,980 | 96.12× |
cpu-sched | 64.74 | 8,277 | 127.85× |
eventfd | 38,186 | 7,014,399 | 183.69× |
fault | 14,233 | 205,162 | 14.41× |
fork | 4,492 | 59,264 | 13.19× |
getrandom | 73,484 | 4,973,867 | 67.69× |
hrtimers | 553,819 | 15,417,468 | 27.84× |
mprotect | 716,509 | 25,747,361 | 35.93× |
mtx | 38,679,862 | 4,638,296,261 | 119.92× |
munmap | 3,446 | 61,587 | 17.87× |
null | 595,308 | 57,661,970 | 96.86× |
pipe | 2,764,159 | 70,935,179 | 25.66× |
priv-instr | 592,160 | 29,861,492 | 50.43× |
resched | 7,689,446 | 7,502,836 | 0.98× |
switch | 109,554 | 23,740,965 | 216.71× |
timermix | 218,846 | 18,942,054 | 86.55× |
tlb-shootdown | 15,023 | 329,537 | 21.94× |
tsc | 890,603 | 105,826,267 | 118.83× |
usersyscall | 462,208 | 29,581,507 | 64.00× |
vdso | 110,732,339 | 10,580,385,758 | 95.55× |
vfork | 22,161 | 175,026 | 7.90× |
x86syscall | 8,071,803 | 780,934,996 | 96.75× |
yield | 92,558,296 | 93,300,325 | 1.01× |
zero | 4,410,897 | 383,899,096 | 87.03× |
| CPU float/SIMD | Single | Multi | Scaling |
|---|---|---|---|
eigen | 17,611 | 1,101,375 | 62.54× |
expmath | 4,018 | 284,758 | 70.87× |
fma | 1,573,342 | 106,481,517 | 67.68× |
fp | 191.49 | 17,377 | 90.75× |
fractal | 9 | 705.59 | 78.40× |
hyperbolic | 5,474 | 449,770 | 82.16× |
logmath | 5,736 | 465,426 | 81.14× |
matrix | 8,951 | 390,727 | 43.65× |
matrix-3d | 99.95 | 14,570 | 145.77× |
monte-carlo | 290.91 | 25,787 | 88.64× |
mpfr | 2,426 | 162,551 | 67.00× |
powmath | 1,858 | 157,476 | 84.75× |
trig | 2,448 | 189,867 | 77.56× |
veccmp | 30,471 | 2,043,294 | 67.06× |
vecfp | 2,390 | 192,482 | 80.52× |
vecmath | 4,744 | 400,866 | 84.50× |
vecshuf | 1,005 | 63,316 | 63.00× |
vecwide | 40,410 | 2,510,747 | 62.13× |
| Algorithms | Single | Multi | Scaling |
|---|---|---|---|
bitonicsort | 12.8 | 780.18 | 60.95× |
bsearch | 367.74 | 25,460 | 69.23× |
bubblesort | 1.2 | 76.8 | 64.00× |
fibsearch | 432.91 | 32,200 | 74.38× |
heapsort | 14.2 | 969.16 | 68.25× |
hsearch | 13,553 | 760,123 | 56.08× |
insertionsort | 14.8 | 846.39 | 57.19× |
malloc | 5,346,716 | 194,321,294 | 36.34× |
mcontend | 111.06 | 19,209 | 172.96× |
mergesort | 39 | 3,044 | 78.06× |
qsort | 26.4 | 1,908 | 72.28× |
skiplist | 8,532 | 694,338 | 81.38× |
tree | 2.6 | 117.35 | 45.13× |
| Memory | Single | Multi | Scaling |
|---|---|---|---|
cache | 1,002,784 | 2,432,954 | 2.43× |
cachehammer | 273,386 | 17,367,418 | 63.53× |
cacheline | 72.37 | 5,354 | 73.99× |
l1cache | 1,369 | 38,445 | 28.08× |
memcpy | 816.07 | 42,893 | 52.56× |
memrate | 4.95 | 51.43 | 10.39× |
memthrash | 251.07 | 2,180 | 8.68× |
ptr-chase | 91,699,650 | 1,110,131,795 | 12.11× |
spinmem | 335.18 | 2,556 | 7.62× |
stream | 72.19 | 106,119 | 1470.00× |
vm | 240,913 | 308,910 | 1.28× |
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
| INSTANCE | vCPUs | MEMORY | Accelerators |
|---|---|---|---|
| D2as_v7 | 2 | 8 GiB | 0 |
| D4as_v7 | 4 | 16 GiB | 0 |
| D8as_v7 | 8 | 32 GiB | 0 |
| D16as_v7 | 16 | 64 GiB | 0 |
| D32as_v7 | 32 | 128 GiB | 0 |
| D48as_v7 | 48 | 192 GiB | 0 |
| D64as_v7 | 64 | 256 GiB | 0 |
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