c5ad.4xlarge by Amazon Web Services

c5ad.4xlarge is a Compute optimized [AMD processors] [Instance store volumes] Gen5 4xlarge server offered by Amazon Web Services with 16 vCPUs, 32 GiB of memory and 600 GB of storage. The pricing starts at 0.1584 USD per hour.
16 vCPU
32 GiB Memory
600 GB Storage
Spare SCore
6,098
(All-cores)
765
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c5ad.4xlarge
Description
Compute optimized [AMD processors] [Instance store volumes] Gen5 4xlarge
Family
c5ad
Hw Virt
Status
active
Observed At
2026-10-26T00:02:14.359990

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.32715 USD/h 0.688 USD/h
Oregon (US) / us-west-2
0.291867 USD/h 0.688 USD/h
Northern Virgina (US) / us-east-1
0.31808 USD/h 0.688 USD/h
Dublin (IE) / eu-west-1
0.3756 USD/h 0.784 USD/h
Frankfurt (DE) / eu-central-1
0.4079 USD/h 0.8 USD/h
Singapore (SG) / ap-southeast-1
0.3719 USD/h 0.808 USD/h
Milan (IT) / eu-south-1
0.2052 USD/h 0.824 USD/h
Sydney (AU) / ap-southeast-2
0.4008 USD/h 0.904 USD/h
Cape Town (ZA) / af-south-1
0.314067 USD/h 0.936 USD/h
Sao Paulo (BR) / sa-east-1
0.1807 USD/h 1.072 USD/h

Processor

vCPUs
16
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
8
CPU Speed
3.3 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU Model
7R32
CPU L1D Cache
32 KiB
CPU L1D Cache Total
256 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
256 KiB
CPU L2 Cache
512 KiB
CPU L2 Cache Total
4 MiB
CPU L3 Cache
16 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, nonstop_tsc, cpuid, extd_apicid, aperfmperf, tsc_known_freq, 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, topoext, ssbd, ibrs, ibpb, stibp, vmmcall, fsgsbase, bmi1, avx2, smep, bmi2, rdseed, adx, smap, clflushopt, clwb, sha_ni, xsaveopt, xsavec, xgetbv1, clzero, xsaveerptr, rdpru, wbnoinvd, arat, npt, nrip_save, rdpid
Ecpus
8
Scalability
50

System Resources and Accelerators

MEMORY
Memory Amount
32 GiB
Memory Amount Actual
32 GiB
Memory Generation
DDR4
Memory Speed
2933 Mhz
ACCELERATORS
Accelerator Count
0
Accelerator Memory Min
0 MiB
Accelerator Memory Total
0 MiB
Accelerators
    STORAGE
    Storage Size
    600 GB
    Storage Type
    nvme ssd
    Storages
    • 300 GB nvme ssd
    • 300 GB nvme ssd
    NETWORK
    Network Speed Baseline
    5 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 compute-optimized instance combining dedicated AMD EPYC processors with high-speed local NVMe storage for parallel processing and scratch-space workloads.

    Compute OptimizedStorage & Database

    Amazon Web Services c5ad.4xlarge is an x86_64 compute-optimized instance featuring an AMD EPYC 7R32 processor with 16 dedicated vCPUs, 8 physical cores, and 32.0 GB of DDR4 memory. Operating on the Nitro hypervisor, it includes 600 GB of local NVMe SSD instance storage and a 5 Gbps baseline network bandwidth. Benchmark data indicates average multi-core CPU performance, software compilation, and database operations, though single-core CPU performance and large-block memory bandwidth are weak. The instance supports AVX, AES, and SHA_NI instructions but lacks AVX-512. This hardware profile offers qualitative cost efficiency for applications that leverage local ephemeral storage to avoid network storage overhead. It is suited for workloads requiring local scratch space and parallel processing, such as web serving, database operations, and multi-threaded software compilation.

    Economics

    Average Price per Region

    Prices per Zone

    Lowest Prices

    Performance

    Workload Profiles

    0.69Score
    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) 1,314,361 ops/sec 1,919,289 ops/sec 0.68 50.00% 50.00% -18.00%
    Redis RPS (pipeline=16, SET) 8,664,124 ops/sec 11,728,058 ops/sec 0.72 20.00% 20.00% -6.40%
    PassMark Memory Mark (composite) 2,627 2,416 1.1 10.00% 10.00% +0.96%
    Memory bandwidth (read, 16 MB ~ L3) 37,861 MB/sec 108,466 MB/sec 0.35 10.00% 10.00% -10.00%
    PassMark single-thread CPU 2,140 Mops/s 2,365 Mops/s 0.88 10.00% 10.00% -1.30%

    Memory Bandwidth

    Compression

    OpenSSL

    Geekbench Single-Core

    Score: 1,341

    Geekbench Multi-Core

    Score: 8,050

    Passmark CPU Scores

    BENCHMARKSCORE
    Mark
    		 19,599
    Compression
    		 238,828
    Encryption
    		 17,082
    Extended Instructions
    		 14,791
    Floating Point Maths
    		 32,232
    Integer Maths
    		 54,037
    Physics
    		 1,758
    Prime Numbers
    		 85
    Single Threaded
    		 2,140
    String Sorting
    		 33,345

    Passmark Memory Scores

    BENCHMARKSCORE
    Memory Mark
    		 2,627
    Database Operations
    		 5,618
    Memory Latency
    		 50
    Memory Read Cached
    		 24,687
    Memory Read Uncached
    		 13,122
    Memory Write
    		 13,014

    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

    INSTANCEvCPUsMEMORYAccelerators
    c5ad.large 24 GiB0
    c5ad.xlarge 48 GiB0
    c5ad.2xlarge 816 GiB0
    c5ad.8xlarge 3264 GiB0
    c5ad.12xlarge 4896 GiB0
    c5ad.16xlarge 64128 GiB0
    c5ad.24xlarge 96192 GiB0

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    c5ad.4xlarge FAQs