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c5a.24xlarge by Amazon Web Services

c5a.24xlarge is a Compute optimized [AMD processors] Gen5 24xlarge server offered by Amazon Web Services with 96 vCPUs, 192 GiB of memory and 0 GB of storage. The pricing starts at 0.4143 USD per hour.
96 vCPU
192 GiB Memory
Spare SCore
36867
(All-cores)
749
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c5a.24xlarge
Description
Compute optimized [AMD processors] Gen5 24xlarge
Family
c5a
Hw Virt
Status
active
Observed At
2026-08-07T14:52:01.619267

Availability

REGION / IDSPOTONDEMAND
Mumbai (IN) / ap-south-1
0.548333 USD/h 2.256 USD/h
Northern Virgina (US) / us-east-1
1.42688 USD/h 3.696 USD/h
Ohio (US) / us-east-2
1.427733 USD/h 3.696 USD/h
Oregon (US) / us-west-2
1.92695 USD/h 3.696 USD/h
Stockholm (SE) / eu-north-1
0.7227 USD/h 3.936 USD/h
Quebec (CA) / ca-central-1
0.907433 USD/h 4.032 USD/h
Seoul (KR) / ap-northeast-2
1.479333 USD/h 4.128 USD/h
Dublin (IE) / eu-west-1
1.993967 USD/h 4.128 USD/h
Frankfurt (DE) / eu-central-1
1.456 USD/h 4.176 USD/h
Singapore (SG) / ap-southeast-1
1.496867 USD/h 4.224 USD/h
Milan (IT) / eu-south-1
0.6049 USD/h 4.368 USD/h
Paris (FR) / eu-west-3
0.72265 USD/h 4.368 USD/h
London (GB) / eu-west-2
1.549067 USD/h 4.368 USD/h
California (US) / us-west-1
1.3679 USD/h 4.56 USD/h
Tokyo (JP) / ap-northeast-1
1.6505 USD/h 4.608 USD/h
Hong Kong (HK) / ap-east-1
4.656 USD/h 4.656 USD/h
Sydney (AU) / ap-southeast-2
1.6198 USD/h 4.8 USD/h
Cape Town (ZA) / af-south-1
0.5554 USD/h 4.944 USD/h
Sao Paulo (BR) / sa-east-1
0.882367 USD/h 5.664 USD/h

Processor

vCPUs
96
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
48
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
2 MiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
2 MiB
CPU L2 Cache
512 KiB
CPU L2 Cache Total
24 MiB
CPU L3 Cache
16 MiB
CPU L3 Cache Total
192 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, monitor, 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, perfctr_core, 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
49.2
Scalability
102.5

System Resources and Accelerators

MEMORY
Memory Amount
192 GiB
Memory Amount Actual
192 GiB
Memory Generation
DDR4
Memory Speed
2933 Mhz
GPU
GPU Count
0
GPU Memory Min
0 MiB
GPU Memory Total
0 MiB
GPUs
    STORAGE
    Storage Size
    0 GB
    Storages
      NETWORK
      Network Speed Baseline
      20 Gbps
      Network Speed Max
      20 Gbps
      Network Storage Speed Baseline
      9.5 Gbps
      Network Storage Speed Max
      9.5 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A high-core-count compute instance optimized for parallel processing, cryptographic workloads, and memory-cached operations without local storage.

      Compute Optimized

      Amazon Web Services c5a.24xlarge is a compute-optimized instance featuring 96 vCPUs and 48 physical cores powered by an AMD EPYC 7R32 processor running at 3.3 GHz. Built on the x86_64 architecture and managed by the Nitro hypervisor, it includes 192.0 GB of DDR4 memory but lacks local storage and GPU hardware. While single-core performance is limited, placing in the bottom 10% in stress-ng tests, the instance delivers strong multi-core and cryptographic capabilities, scoring in the top 10% for PassMark CPU encryption. It also achieves strong results in software compilation, ray tracing, and Redis operations, supported by a high cached memory read bandwidth of 4497.3 GB/sec. With a baseline network bandwidth of 20 Gbps, this instance is highly suited for parallelized compute workloads, software development pipelines, and memory-cached database operations.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      2.73Score
      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) 7,648,580 ops/sec 1,910,660 ops/sec 4 50.00% 50.00% +100.00%
      Redis RPS (pipeline=16, SET) 50,219,212 ops/sec 11,608,287 ops/sec 4.33 20.00% 20.00% +34.10%
      PassMark Memory Mark (composite) 2,897 2,416 1.2 10.00% 10.00% +1.84%
      Memory bandwidth (read, 16 MB ~ L3) 121,358 MB/sec 107,896 MB/sec 1.12 10.00% 10.00% +1.14%
      PassMark single-thread CPU 2,099 Mops/s 2,364 Mops/s 0.888 10.00% 10.00% -1.18%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,321

      Geekbench Multi-Core

      Score: 15,228

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 69069
      Compression
      		 1416113
      Encryption
      		 102374
      Extended Instructions
      		 81540
      Floating Point Maths
      		 193172
      Integer Maths
      		 323505
      Physics
      		 6478
      Prime Numbers
      		 439
      Single Threaded
      		 2099
      String Sorting
      		 178727

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2897
      Database Operations
      		 21636
      Memory Latency
      		 52
      Memory Read Cached
      		 24189
      Memory Read Uncached
      		 12716
      Memory Write
      		 13324

      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
      c5a.large 24 GiB0
      c5a.xlarge 48 GiB0
      c5a.2xlarge 816 GiB0
      c5a.4xlarge 1632 GiB0
      c5a.8xlarge 3264 GiB0
      c5a.12xlarge 4896 GiB0
      c5a.16xlarge 64128 GiB0

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      c5a.24xlarge FAQs