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c8a.large by Amazon Web Services

c8a.large is a Compute optimized [AMD processors] Gen8 large server offered by Amazon Web Services with 2 vCPUs, 4 GiB of memory and 0 GB of storage. The pricing starts at 0.0277 USD per hour.
2 vCPU
4 GiB Memory
Spare SCore
7518
(All-cores)
3774
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c8a.large
Description
Compute optimized [AMD processors] Gen8 large
Family
c8a
Hw Virt
Status
active
Observed At
2026-07-21T01:33:20.931184

Availability

REGION / IDSPOTONDEMAND
Oregon (US) / us-west-2
0.039225 USD/h 0.1078 USD/h
Ohio (US) / us-east-2
0.031967 USD/h 0.1078 USD/h
Northern Virgina (US) / us-east-1
0.03854 USD/h 0.1078 USD/h
Aragón (ES) / eu-south-2
0.032333 USD/h 0.1156 USD/h
Dublin (IE) / eu-west-1
0.03865 USD/h 0.1156 USD/h
Frankfurt (DE) / eu-central-1
0.045667 USD/h 0.123 USD/h
Tokyo (JP) / ap-northeast-1
0.075233 USD/h 0.1357 USD/h

Processor

vCPUs
2
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
2
CPU Speed
4.5 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU Model
9R45
CPU L1D Cache
48 KiB
CPU L1D Cache Total
96 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
8 MiB
CPU L3 Cache Total
8 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, nonstop_tsc, cpuid, extd_apicid, aperfmperf, tsc_known_freq, pni, pclmulqdq, monitor, ssse3, fma, cx16, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, cmp_legacy, cr8_legacy, abm, sse4a, misalignsse, 3dnowprefetch, topoext, perfctr_core, ssbd, perfmon_v2, ibrs, ibpb, stibp, ibrs_enhanced, vmmcall, fsgsbase, tsc_adjust, bmi1, avx2, smep, bmi2, erms, invpcid, avx512f, avx512dq, rdseed, adx, smap, avx512ifma, clflushopt, clwb, avx512cd, sha_ni, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, avx_vnni, avx512_bf16, clzero, xsaveerptr, rdpru, wbnoinvd, arat, avx512vbmi, pku, ospke, avx512_vbmi2, gfni, vaes, vpclmulqdq, avx512_vnni, avx512_bitalg, avx512_vpopcntdq, rdpid, movdiri, movdir64b, fsrm, avx512_vp2intersect, flush_l1d
Ecpus
2
Scalability
100

System Resources and Accelerators

MEMORY
Memory Amount
4 GiB
Memory Amount Actual
4 GiB
Memory Generation
DDR5
Memory Speed
6400 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
      0.937 Gbps
      Network Speed Max
      12.5 Gbps
      Network Storage Speed Baseline
      0.65 Gbps
      Network Storage Speed Max
      10 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A high-frequency, compute-optimized virtual machine delivering exceptional single-core performance and DDR5 memory for dedicated processing workloads.

      Compute Optimized

      Amazon Web Services c8a.large is a compute-optimized instance featuring two dedicated vCPUs from an AMD EPYC 9R45 processor running at 4.5 GHz. Built on the x86_64 architecture and managed by the Nitro hypervisor, it is equipped with 4.0 GB of DDR5 memory at 6 GHz, with no local storage or GPU accelerators. The instance delivers top-tier single-core performance, as evidenced by high Geekbench single-core and single-threaded compression benchmarks. However, its multi-threaded capabilities and memory scores are average to weak, reflecting a clear tradeoff for parallel workloads. This instance is highly efficient for single-threaded processing, text manipulation, and lightweight web serving.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      0.545Score
      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) 760,173 ops/sec 1,896,415 ops/sec 0.401 50.00% 50.00% -36.70%
      Redis RPS (pipeline=16, SET) 5,043,695 ops/sec 11,539,523 ops/sec 0.437 20.00% 20.00% -15.30%
      PassMark Memory Mark (composite) 1,376 2,411 0.571 10.00% 10.00% -5.45%
      Memory bandwidth (read, 16 MB ~ L3) 137,025 MB/sec 107,368 MB/sec 1.28 10.00% 10.00% +2.50%
      PassMark single-thread CPU 3,819 Mops/s 2,363 Mops/s 1.62 10.00% 10.00% +4.94%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,806

      Geekbench Multi-Core

      Score: 5,055

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		6963
      Compression
      		66513
      Encryption
      		3177
      Extended Instructions
      		5832
      Floating Point Maths
      		15286
      Integer Maths
      		15234
      Physics
      		983
      Prime Numbers
      		61
      Single Threaded
      		3819
      String Sorting
      		9443

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		1376
      Database Operations
      		2814
      Memory Latency
      		83
      Memory Read Cached
      		33953
      Memory Read Uncached
      		32317
      Memory Write
      		32784

      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
      c8a.medium 12 GiB0
      c8a.xlarge 48 GiB0
      c8a.2xlarge 816 GiB0
      c8a.4xlarge 1632 GiB0
      c8a.8xlarge 3264 GiB0
      c8a.12xlarge 4896 GiB0
      c8a.16xlarge 64128 GiB0

      Similar Servers

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      c8a.large FAQs