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c6a.12xlarge by Amazon Web Services

c6a.12xlarge is a Compute optimized [AMD processors] Gen6 12xlarge server offered by Amazon Web Services with 48 vCPUs, 96 GiB of memory and 0 GB of storage. The pricing starts at 0.3178 USD per hour.
48 vCPU
96 GiB Memory
Spare SCore
71763
(All-cores)
2992
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c6a.12xlarge
Description
Compute optimized [AMD processors] Gen6 12xlarge
Family
c6a
Hw Virt
Status
active
Observed At
2026-07-29T11:31:06.517981

Availability

REGION / IDSPOTONDEMAND
Hyderabad (IN) / ap-south-2
0.3559 USD/h 1.122 USD/h
Mumbai (IN) / ap-south-1
0.442767 USD/h 1.122 USD/h
Ohio (US) / us-east-2
0.540267 USD/h 1.836 USD/h
Oregon (US) / us-west-2
0.720175 USD/h 1.836 USD/h
Northern Virgina (US) / us-east-1
0.73962 USD/h 1.836 USD/h
Dublin (IE) / eu-west-1
0.975633 USD/h 1.9699 USD/h
Quebec (CA) / ca-central-1
0.634767 USD/h 2.0088 USD/h
Frankfurt (DE) / eu-central-1
0.899933 USD/h 2.0952 USD/h
Singapore (SG) / ap-southeast-1
0.7948 USD/h 2.1168 USD/h
London (GB) / eu-west-2
0.9152 USD/h 2.1816 USD/h
California (US) / us-west-1
0.8792 USD/h 2.2896 USD/h
Tokyo (JP) / ap-northeast-1
0.898867 USD/h 2.3112 USD/h
Hong Kong (HK) / ap-east-1
0.59825 USD/h 2.3328 USD/h
Sydney (AU) / ap-southeast-2
0.9842 USD/h 2.3976 USD/h
Sao Paulo (BR) / sa-east-1
0.7241 USD/h 2.8296 USD/h

Processor

vCPUs
48
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
24
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
768 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
768 KiB
CPU L2 Cache
512 KiB
CPU L2 Cache Total
12 MiB
CPU L3 Cache
32 MiB
CPU L3 Cache Total
96 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
24
Scalability
100

System Resources and Accelerators

MEMORY
Memory Amount
96 GiB
Memory Amount Actual
96 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
      18.75 Gbps
      Network Speed Max
      18.75 Gbps
      Network Storage Speed Baseline
      15 Gbps
      Network Storage Speed Max
      15 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A dedicated compute-optimized instance featuring forty-eight vCPUs and ninety-six gigabytes of memory for CPU-intensive processing workloads.

      Compute OptimizedGeneral Purpose

      Amazon Web Services c6a.12xlarge is an x86_64 compute-optimized server instance running on the Nitro hypervisor. Powered by a dedicated 3.6 GHz AMD EPYC 7R13 processor, it features 48 vCPUs, 24 physical cores, and 96.0 GB of DDR4 memory. The instance lacks local storage and GPU accelerators, focusing resources entirely on compute density. Benchmarks show strong top-25% performance in multi-core CPU execution, encryption, ray tracing, and image processing, while memory bandwidth and database operations perform in the average tier. With a baseline network bandwidth of 19 Gbps, this instance offers a cost-effective profile for CPU-bound workloads. It is highly suitable for batch processing, ray tracing, image processing, and small-scale machine learning inference tasks that require dedicated compute resources without the overhead of local storage.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1.77Score
      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) 4,211,841 ops/sec 1,896,415 ops/sec 2.22 50.00% 50.00% +49.00%
      Redis RPS (pipeline=16, SET) 30,032,687 ops/sec 11,539,523 ops/sec 2.6 20.00% 20.00% +21.10%
      PassMark Memory Mark (composite) 2,875 2,411 1.19 10.00% 10.00% +1.75%
      Memory bandwidth (read, 16 MB ~ L3) 68,271 MB/sec 107,368 MB/sec 0.636 10.00% 10.00% -4.42%
      PassMark single-thread CPU 2,642 Mops/s 2,363 Mops/s 1.12 10.00% 10.00% +1.14%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,733

      Geekbench Multi-Core

      Score: 14,618

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 54221
      Compression
      		 835974
      Encryption
      		 56849
      Extended Instructions
      		 49097
      Floating Point Maths
      		 121108
      Integer Maths
      		 220834
      Physics
      		 3658
      Prime Numbers
      		 262
      Single Threaded
      		 2642
      String Sorting
      		 95911

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2875
      Database Operations
      		 17886
      Memory Latency
      		 61
      Memory Read Cached
      		 26485
      Memory Read Uncached
      		 17440
      Memory Write
      		 17390

      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.8xlarge 3264 GiB0
      c6a.16xlarge 64128 GiB0
      c6a.24xlarge 96192 GiB0

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      c6a.12xlarge FAQs