c7a.16xlarge by Amazon Web Services

c7a.16xlarge is a Compute optimized [AMD processors] Gen7 16xlarge server offered by Amazon Web Services with 64 vCPUs, 128 GiB of memory and 0 GB of storage. The pricing starts at 0.3929 USD per hour.
64 vCPU
128 GiB Memory
Spare SCore
196,253
(All-cores)
3,070
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
c7a.16xlarge
Description
Compute optimized [AMD processors] Gen7 16xlarge
Family
c7a
Hw Virt
Status
active
Observed At
2026-11-11T14:49:17.762184

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
0.7994 USD/h 3.2845 USD/h
Northern Virgina (US) / us-east-1
0.91428 USD/h 3.2845 USD/h
Oregon (US) / us-west-2
1.193775 USD/h 3.2845 USD/h
Stockholm (SE) / eu-north-1
0.721967 USD/h 3.5162 USD/h
Aragón (ES) / eu-south-2
0.4187 USD/h 3.5232 USD/h
Dublin (IE) / eu-west-1
1.534433 USD/h 3.5238 USD/h
Frankfurt (DE) / eu-central-1
1.375867 USD/h 3.7482 USD/h
Singapore (SG) / ap-southeast-1
1.443933 USD/h 3.7869 USD/h
London (GB) / eu-west-2
1.1646 USD/h 3.9027 USD/h
California (US) / us-west-1
1.0051 USD/h 4.0957 USD/h
Tokyo (JP) / ap-northeast-1
1.471567 USD/h 4.1344 USD/h

Processor

vCPUs
64
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
64
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
64 MiB
CPU L3 Cache
32 MiB
CPU L3 Cache Total
256 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
63.9
Scalability
99.84

System Resources and Accelerators

MEMORY
Memory Amount
128 GiB
Memory Amount Actual
128 GiB
Memory Generation
DDR5
Memory Speed
4800 Mhz
ACCELERATORS
Accelerator Count
0
Accelerator Memory Min
0 MiB
Accelerator Memory Total
0 MiB
Accelerators
    STORAGE
    Storage Size
    0 GB
    Storages
      NETWORK
      Network Speed Baseline
      25 Gbps
      Network Speed Max
      25 Gbps
      Network Storage Speed Baseline
      20 Gbps
      Network Storage Speed Max
      20 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A high-density compute instance featuring dedicated AMD EPYC processing and DDR5 memory for intensive multi-threaded workloads.

      The Amazon Web Services c7a.16xlarge is an x86_64 compute-optimized instance powered by a dedicated 64-core AMD EPYC 9R14 processor running at 3.7 GHz. It features 128 GB of DDR5 memory operating at 5 GHz, providing a 2.0 GB per core ratio, and operates on the Nitro hypervisor. This instance does not include local storage or GPUs, but provides a 25 Gbps baseline network bandwidth. Benchmark data shows top-tier multi-core CPU performance, placing in the top 10% for software compilation, ray tracing, and Passmark CPU tests. It also demonstrates strong memory bandwidth and efficient LLM inference capabilities. The c7a.16xlarge is designed for compute-intensive workloads such as software compilation, high-throughput web serving, database operations, and mathematical simulations.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      3.2Score
      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) 7,490,314 ops/sec 1,926,573 ops/sec 3.9 50.00% 50.00% +97.00%
      Redis RPS (pipeline=16, SET) 61,597,208 ops/sec 11,810,473 ops/sec 5.2 20.00% 20.00% +39.00%
      PassMark Memory Mark (composite) 2,880 2,406 1.2 10.00% 10.00% +1.80%
      Memory bandwidth (read, 16 MB ~ L3) 379,826 MB/sec 108,674 MB/sec 3.5 10.00% 10.00% +13.00%
      PassMark single-thread CPU 2,891 Mops/s 2,365 Mops/s 1.2 10.00% 10.00% +1.80%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,999

      Geekbench Multi-Core

      Score: 22,073

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 93,359
      Compression
      		 1,566,457
      Encryption
      		 83,655
      Extended Instructions
      		 124,333
      Floating Point Maths
      		 340,710
      Integer Maths
      		 386,737
      Physics
      		 15,589
      Prime Numbers
      		 1,179
      Single Threaded
      		 2,891
      String Sorting
      		 222,085

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2,880
      Database Operations
      		 29,611
      Memory Latency
      		 76
      Memory Read Cached
      		 27,849
      Memory Read Uncached
      		 27,086
      Memory Write
      		 26,244

      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

      INSTANCEvCPUsMEMORYAccelerators
      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.12xlarge 4896 GiB0

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      c7a.16xlarge FAQs