c7a.16xlarge by Amazon Web Services
(All-cores)
(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 | 2026-06-29T14:12:07.432710 |
Availability
| REGION / ID | SPOT | ONDEMAND |
|---|---|---|
Ohio (US) / us-east-2 | 0.921467 USD/h | 3.2845 USD/h |
Northern Virgina (US) / us-east-1 | 1.19778 USD/h | 3.2845 USD/h |
Oregon (US) / us-west-2 | 1.229575 USD/h | 3.2845 USD/h |
Stockholm (SE) / eu-north-1 | 0.802233 USD/h | 3.5162 USD/h |
Aragón (ES) / eu-south-2 | 0.947767 USD/h | 3.5232 USD/h |
Dublin (IE) / eu-west-1 | 1.5147 USD/h | 3.5238 USD/h |
Frankfurt (DE) / eu-central-1 | 1.3551 USD/h | 3.7482 USD/h |
Singapore (SG) / ap-southeast-1 | 1.461367 USD/h | 3.7869 USD/h |
London (GB) / eu-west-2 | 1.2978 USD/h | 3.9027 USD/h |
Tokyo (JP) / ap-northeast-1 | 1.382867 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 |
| 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 | 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 compute-dense platform featuring sixty-four dedicated AMD EPYC cores and high-speed DDR5 memory for parallel processing workloads.
Amazon Web Services c7a.16xlarge is a compute-optimized instance featuring 64 dedicated physical cores powered by an AMD EPYC 9R14 processor running at 3.7 GHz. Built on the Nitro hypervisor, it includes 128.0 GB of DDR5 memory at 5 GHz, yielding a 2.0 GB per core ratio. The instance lacks local storage and GPU accelerators, utilizing a 25 Gbps baseline network bandwidth instead. Benchmark results place this server in the top 10% for multi-core CPU performance, software compilation, ray tracing, and Redis SET operations. It also demonstrates strong memory bandwidth and efficient LLM inference capabilities. The dedicated core configuration provides high compute density, though the lower memory-to-core ratio presents a tradeoff for memory-intensive applications. This server is suited for compute-heavy workloads, including software compilation, image processing, database operations, and parallel simulation tasks.
Economics
Performance
Memory Bandwidth
Compression
OpenSSL
Geekbench Single-Core
Geekbench Multi-Core
Passmark CPU Scores
| BENCHMARK | SCORE |
|---|---|
Mark | 93359 |
Compression | 1566457 |
Encryption | 83655 |
Extended Instructions | 124333 |
Floating Point Maths | 340710 |
Integer Maths | 386737 |
Physics | 15589 |
Prime Numbers | 1179 |
Single Threaded | 2891 |
String Sorting | 222085 |
Passmark Memory Scores
| BENCHMARK | SCORE |
|---|---|
Memory Mark | 2880 |
Database Operations | 29611 |
Memory Latency | 76 |
Memory Read Cached | 27849 |
Memory Read Uncached | 27086 |
Memory Write | 26244 |
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
| INSTANCE | vCPUs | MEMORY | GPUs |
|---|---|---|---|
| c7a.medium | 1 | 2 GiB | 0 |
| c7a.large | 2 | 4 GiB | 0 |
| c7a.xlarge | 4 | 8 GiB | 0 |
| c7a.2xlarge | 8 | 16 GiB | 0 |
| c7a.4xlarge | 16 | 32 GiB | 0 |
| c7a.8xlarge | 32 | 64 GiB | 0 |
| c7a.12xlarge | 48 | 96 GiB | 0 |
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