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c7a.12xlarge by Amazon Web Services

c7a.12xlarge is a Compute optimized [AMD processors] Gen7 12xlarge server offered by Amazon Web Services with 48 vCPUs, 96 GiB of memory and 0 GB of storage. The pricing starts at 0.5324 USD per hour.
48 vCPU
96 GiB Memory
Spare SCore
147607
(All-cores)
3077
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c7a.12xlarge
Description
Compute optimized [AMD processors] Gen7 12xlarge
Family
c7a
Hw Virt
Status
active
Observed At
2026-08-03T22:12:27.705826

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.804467 USD/h 2.4634 USD/h
Northern Virgina (US) / us-east-1
0.86046 USD/h 2.4634 USD/h
Oregon (US) / us-west-2
0.96585 USD/h 2.4634 USD/h
Stockholm (SE) / eu-north-1
0.692933 USD/h 2.6371 USD/h
Aragón (ES) / eu-south-2
0.547467 USD/h 2.6424 USD/h
Dublin (IE) / eu-west-1
1.179867 USD/h 2.6429 USD/h
Frankfurt (DE) / eu-central-1
0.973 USD/h 2.8111 USD/h
Singapore (SG) / ap-southeast-1
1.190933 USD/h 2.8402 USD/h
London (GB) / eu-west-2
0.986167 USD/h 2.927 USD/h
California (US) / us-west-1
0.95425 USD/h 3.0718 USD/h
Tokyo (JP) / ap-northeast-1
0.994667 USD/h 3.1008 USD/h

Processor

vCPUs
48
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
48
CPU Speed
3.7 GHz
CPU Architecture
x86_64
CPU Manufacturer
AMD
CPU Family
EPYC
CPU Model
9R14
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
1 MiB
CPU L2 Cache Total
48 MiB
CPU L3 Cache
32 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, 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, bmi1, avx2, smep, bmi2, invpcid, avx512f, avx512dq, rdseed, adx, smap, avx512ifma, clflushopt, clwb, avx512cd, sha_ni, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, avx512_bf16, clzero, xsaveerptr, rdpru, wbnoinvd, arat, avx512vbmi, pku, ospke, avx512_vbmi2, gfni, vaes, vpclmulqdq, avx512_vnni, avx512_bitalg, avx512_vpopcntdq, rdpid, flush_l1d
Ecpus
48
Scalability
100

System Resources and Accelerators

MEMORY
Memory Amount
96 GiB
Memory Amount Actual
96 GiB
Memory Generation
DDR5
Memory Speed
4800 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 high-density, compute-optimized platform featuring dedicated AMD EPYC processors and DDR5 memory for demanding multi-core processing workloads.

      Compute Optimized

      Amazon Web Services c7a.12xlarge is a compute-optimized instance featuring 48 dedicated physical cores and 48 vCPUs powered by an AMD EPYC 9R14 processor running at 3.7 GHz. Built on the Nitro hypervisor, it includes 96.0 GB of 5 GHz DDR5 memory, offering a 2.0 GB per core ratio, with no local storage or GPU resources. Network performance is supported by a 19 Gbps baseline bandwidth. Benchmarks indicate top-tier multi-core CPU performance, software compilation, and image processing, along with strong memory bandwidth and cryptographic capabilities. The instance represents a highly efficient choice for CPU-bound tasks, though the 2.0 GB RAM per core ratio and lack of local storage present tradeoffs for memory-intensive applications. It is ideal for software compilation, image processing, and medium-scale LLM inference.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      2.94Score
      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) 6,632,205 ops/sec 1,910,660 ops/sec 3.47 50.00% 50.00% +86.30%
      Redis RPS (pipeline=16, SET) 58,277,398 ops/sec 11,608,287 ops/sec 5.02 20.00% 20.00% +38.10%
      PassMark Memory Mark (composite) 2,826 2,416 1.17 10.00% 10.00% +1.58%
      Memory bandwidth (read, 16 MB ~ L3) 288,523 MB/sec 107,896 MB/sec 2.67 10.00% 10.00% +10.30%
      PassMark single-thread CPU 2,886 Mops/s 2,364 Mops/s 1.22 10.00% 10.00% +2.01%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,996

      Geekbench Multi-Core

      Score: 21,580

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 80479
      Compression
      		 1248534
      Encryption
      		 62879
      Extended Instructions
      		 103473
      Floating Point Maths
      		 256095
      Integer Maths
      		 290199
      Physics
      		 12453
      Prime Numbers
      		 909
      Single Threaded
      		 2886
      String Sorting
      		 177067

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2826
      Database Operations
      		 28829
      Memory Latency
      		 77
      Memory Read Cached
      		 27852
      Memory Read Uncached
      		 27043
      Memory Write
      		 26334

      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
      c7a.medium 12 GiB0
      c7a.large 24 GiB0
      c7a.xlarge 48 GiB0
      c7a.2xlarge 816 GiB0
      c7a.4xlarge 1632 GiB0
      c7a.8xlarge 3264 GiB0
      c7a.16xlarge 64128 GiB0

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      c7a.12xlarge FAQs