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c6a.8xlarge by Amazon Web Services

c6a.8xlarge is a Compute optimized [AMD processors] Gen6 8xlarge server offered by Amazon Web Services with 32 vCPUs, 64 GiB of memory and 0 GB of storage. The pricing starts at 0.2288 USD per hour.
32 vCPU
64 GiB Memory
Spare SCore
47825
(All-cores)
2991
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c6a.8xlarge
Description
Compute optimized [AMD processors] Gen6 8xlarge
Family
c6a
Hw Virt
Status
active
Observed At
2026-08-03T19:26:02.248615

Availability

REGION / IDSPOTONDEMAND
Hyderabad (IN) / ap-south-2
0.2747 USD/h 0.748 USD/h
Mumbai (IN) / ap-south-1
0.3392 USD/h 0.748 USD/h
Ohio (US) / us-east-2
0.412333 USD/h 1.224 USD/h
Oregon (US) / us-west-2
0.526 USD/h 1.224 USD/h
Northern Virgina (US) / us-east-1
0.58856 USD/h 1.224 USD/h
Dublin (IE) / eu-west-1
0.7114 USD/h 1.3133 USD/h
Quebec (CA) / ca-central-1
0.529133 USD/h 1.3392 USD/h
Frankfurt (DE) / eu-central-1
0.676767 USD/h 1.3968 USD/h
Singapore (SG) / ap-southeast-1
0.7914 USD/h 1.4112 USD/h
London (GB) / eu-west-2
0.6322 USD/h 1.4544 USD/h
California (US) / us-west-1
0.73645 USD/h 1.5264 USD/h
Tokyo (JP) / ap-northeast-1
0.6648 USD/h 1.5408 USD/h
Hong Kong (HK) / ap-east-1
0.53715 USD/h 1.5552 USD/h
Sydney (AU) / ap-southeast-2
0.781933 USD/h 1.5984 USD/h
Sao Paulo (BR) / sa-east-1
0.340133 USD/h 1.8864 USD/h

Processor

vCPUs
32
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
16
CPU Speed
3.6 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU Model
7R13
CPU L1D Cache
32 KiB
CPU L1D Cache Total
512 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
512 KiB
CPU L2 Cache
512 KiB
CPU L2 Cache Total
8 MiB
CPU L3 Cache
32 MiB
CPU L3 Cache Total
64 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, 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, ssbd, ibrs, ibpb, stibp, vmmcall, fsgsbase, bmi1, avx2, smep, bmi2, invpcid, rdseed, adx, smap, clflushopt, clwb, sha_ni, xsaveopt, xsavec, xgetbv1, clzero, xsaveerptr, rdpru, wbnoinvd, arat, npt, nrip_save, vaes, vpclmulqdq, rdpid
Ecpus
16
Scalability
100

System Resources and Accelerators

MEMORY
Memory Amount
64 GiB
Memory Amount Actual
64 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
      12.5 Gbps
      Network Speed Max
      12.5 Gbps
      Network Storage Speed Baseline
      10 Gbps
      Network Storage Speed Max
      10 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A dedicated AMD EPYC compute-optimized instance featuring thirty-two vCPUs and sixty-four gigabytes of RAM for compute-intensive workloads.

      Compute OptimizedGeneral Purpose

      Amazon Web Services c6a.8xlarge is an x86_64 compute-optimized server instance powered by an AMD EPYC 7R13 processor running at 3.6 GHz. It features 32 dedicated vCPUs across 16 physical cores, 64.0 GB of DDR4 memory, and a baseline network bandwidth of 12 Gbps. Operating on the Nitro hypervisor, this instance does not include local storage or GPU accelerators. Benchmark data shows strong single-core CPU performance and strong memory scores, while multi-core CPU performance and large-block memory bandwidth remain average. The instance is highly capable at text generation for small language models but shows weak performance on large 70B models. Given its compute-to-memory ratio of 2.0 GB per core and lack of local storage, the c6a.8xlarge is best suited for compute-intensive tasks such as software compilation, web serving, and moderate database operations where external storage is utilized.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1.34Score
      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) 2,824,948 ops/sec 1,910,660 ops/sec 1.48 50.00% 50.00% +21.70%
      Redis RPS (pipeline=16, SET) 19,962,121 ops/sec 11,608,287 ops/sec 1.72 20.00% 20.00% +11.50%
      PassMark Memory Mark (composite) 2,774 2,416 1.15 10.00% 10.00% +1.41%
      Memory bandwidth (read, 16 MB ~ L3) 77,650 MB/sec 107,896 MB/sec 0.72 10.00% 10.00% -3.23%
      PassMark single-thread CPU 2,599 Mops/s 2,364 Mops/s 1.1 10.00% 10.00% +0.96%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,649

      Geekbench Multi-Core

      Score: 13,438

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 38325
      Compression
      		 492749
      Encryption
      		 34148
      Extended Instructions
      		 27675
      Floating Point Maths
      		 73923
      Integer Maths
      		 135770
      Physics
      		 3784
      Prime Numbers
      		 192
      Single Threaded
      		 2599
      String Sorting
      		 66489

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2774
      Database Operations
      		 13724
      Memory Latency
      		 63
      Memory Read Cached
      		 25114
      Memory Read Uncached
      		 17409
      Memory Write
      		 17338

      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
      c6a.large 24 GiB0
      c6a.xlarge 48 GiB0
      c6a.2xlarge 816 GiB0
      c6a.4xlarge 1632 GiB0
      c6a.12xlarge 4896 GiB0
      c6a.16xlarge 64128 GiB0
      c6a.24xlarge 96192 GiB0

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      c6a.8xlarge FAQs