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z1d.xlarge by Amazon Web Services

z1d.xlarge is a High frequency [Instance store volumes] Gen1 xlarge server offered by Amazon Web Services with 4 vCPUs, 32 GiB of memory and 150 GB of storage. The pricing starts at 0.0801 USD per hour.
4 vCPU
32 GiB Memory
150 GB Storage
Spare SCore
4342
(All-cores)
1653
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
z1d.xlarge
Description
High frequency [Instance store volumes] Gen1 xlarge
Family
z1d
Hw Virt
Status
active
Observed At
2026-07-21T01:33:20.924954

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.11205 USD/h 0.372 USD/h
Oregon (US) / us-west-2
0.117567 USD/h 0.372 USD/h
Northern Virgina (US) / us-east-1
0.1354 USD/h 0.372 USD/h
Mumbai (IN) / ap-south-1
0.08285 USD/h 0.392 USD/h
Dublin (IE) / eu-west-1
0.167367 USD/h 0.416 USD/h
California (US) / us-west-1
0.1163 USD/h 0.422 USD/h
London (GB) / eu-west-2
0.1262 USD/h 0.439 USD/h
Seoul (KR) / ap-northeast-2
0.1154 USD/h 0.45 USD/h
Frankfurt (DE) / eu-central-1
0.193933 USD/h 0.45 USD/h
Singapore (SG) / ap-southeast-1
0.202467 USD/h 0.452 USD/h
Sydney (AU) / ap-southeast-2
0.141 USD/h 0.452 USD/h
Tokyo (JP) / ap-northeast-1
0.106167 USD/h 0.454 USD/h

Processor

vCPUs
4
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
2
CPU Speed
4 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
8151
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
25 MiB
CPU L3 Cache Total
25 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, nonstop_tsc, cpuid, aperfmperf, tsc_known_freq, pni, pclmulqdq, ssse3, fma, cx16, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, tsc_deadline_timer, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, abm, 3dnowprefetch, pti, fsgsbase, tsc_adjust, bmi1, avx2, smep, bmi2, erms, invpcid, mpx, avx512f, avx512dq, rdseed, adx, smap, clflushopt, clwb, avx512cd, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, ida, arat, pku, ospke
Ecpus
2.6
Scalability
130

System Resources and Accelerators

MEMORY
Memory Amount
32 GiB
Memory Amount Actual
32 GiB
Memory Generation
DDR4
Memory Speed
2666 Mhz
GPU
GPU Count
0
GPU Memory Min
0 MiB
GPU Memory Total
0 MiB
GPUs
    STORAGE
    Storage Size
    150 GB
    Storage Type
    nvme ssd
    Storages
    • 150 GB nvme ssd
    NETWORK
    Network Speed Baseline
    1.25 Gbps
    Network Speed Max
    10 Gbps
    Network Storage Speed Baseline
    1.58 Gbps
    Network Storage Speed Max
    3.17 Gbps
    Inbound Traffic
    0 GB/month
    Outbound Traffic
    0 GB/month
    IPv4
    0

    Server Description

    A high-frequency, memory-optimized virtual server featuring dedicated high-clock CPU cores and fast local NVMe SSD storage.

    Memory OptimizedStorage & DatabaseCompute Optimized

    The Amazon Web Services z1d.xlarge is a high-frequency, memory-optimized instance built on the AWS Nitro hypervisor. It features an Intel Xeon 8151 x86_64 processor running at 4.0 GHz, configured with 4 vCPUs (2 physical cores), 32.0 GB of DDR4 memory, and a bundled 150 GB NVMe SSD local instance store. While single-core benchmarks like Geekbench (1314.0) and single-threaded gzip compression (28.05 GB/sec) show average performance, multi-core and memory bandwidth metrics generally fall into the weaker tiers. Qualitatively, this instance provides a high memory-to-vCPU ratio and high clock speeds, making it cost-effective for workloads with high per-core licensing costs. It is suitable for relational databases, electronic design automation, and applications requiring strong single-threaded performance paired with fast local storage.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    0.319Score
    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) 451,850 ops/sec 1,896,415 ops/sec 0.238 50.00% 50.00% -51.20%
    Redis RPS (pipeline=16, SET) 2,561,500 ops/sec 11,539,523 ops/sec 0.222 20.00% 20.00% -26.00%
    PassMark Memory Mark (composite) 2,330 2,411 0.966 10.00% 10.00% -0.34%
    Memory bandwidth (read, 16 MB ~ L3) 32,867 MB/sec 107,368 MB/sec 0.306 10.00% 10.00% -11.20%
    PassMark single-thread CPU 2,336 Mops/s 2,363 Mops/s 0.988 10.00% 10.00% -0.12%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 1,314

    Geekbench Multi-Core

    Score: 2,868

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		5137
    Compression
    		65479
    Encryption
    		2008
    Extended Instructions
    		4008
    Floating Point Maths
    		7813
    Integer Maths
    		14549
    Physics
    		608
    Prime Numbers
    		31
    Single Threaded
    		2336
    String Sorting
    		7587

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		2330
    Database Operations
    		1579
    Memory Latency
    		52
    Memory Read Cached
    		27922
    Memory Read Uncached
    		11693
    Memory Write
    		11069

    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
    z1d.large 216 GiB0
    z1d.2xlarge 864 GiB0
    z1d.3xlarge 1296 GiB0
    z1d.6xlarge 24192 GiB0
    z1d.12xlarge 48384 GiB0
    z1d.metal 48384 GiB0

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    z1d.xlarge FAQs