c9g.8xlarge by Amazon Web Services
(All-cores)
(Single-core)
Specifications
Server Metadata
Vendor ID | aws |
Name | c9g.8xlarge |
Description | Compute optimized [AWS Graviton processors] Gen9 8xlarge |
Family | Compute Optimized |
Series | c9g |
Hw Virt | |
Average Time To Start | 6.33 |
Status | active |
Observed At | 2026-11-14T01:02:04.732331 |
Availability
| Region / ID | Spot | Ondemand |
|---|---|---|
(MY) / ap-southeast-5 | 0.4525 USD/h | 1.3581 USD/h |
Ohio (US) / us-east-2 | 0.366033 USD/h | 1.3862 USD/h |
Northern Virgina (US) / us-east-1 | 0.61725 USD/h | 1.391 USD/h |
Oregon (US) / us-west-2 | 0.631775 USD/h | 1.391 USD/h |
Seoul (KR) / ap-northeast-2 | 0.536933 USD/h | 1.5654 USD/h |
Frankfurt (DE) / eu-central-1 | 0.736167 USD/h | 1.5818 USD/h |
Singapore (SG) / ap-southeast-1 | 0.711367 USD/h | 1.5981 USD/h |
Tokyo (JP) / ap-northeast-1 | 0.759867 USD/h | 1.745 USD/h |
Processor
vCPUs | 32 |
Hypervisor | nitro |
CPU Allocation | Dedicated |
CPU Cores | 32 |
CPU Speed | 3.3 GHz |
CPU Architecture | arm64 |
CPU Manufacturer | AWS |
CPU Family | ARMv9 |
CPU Model | Neoverse-V3 |
CPU L1D Cache | 64 KiB |
CPU L1D Cache Total | 2 MiB |
CPU L1I Cache | 64 KiB |
CPU L1I Cache Total | 2 MiB |
CPU L2 Cache | 2 MiB |
CPU L2 Cache Total | 64 MiB |
CPU L3 Cache | 48 MiB |
CPU L3 Cache Total | 48 MiB |
CPU Flags | fp, asimd, evtstrm, aes, pmull, sha1, sha2, crc32, atomics, fphp, asimdhp, cpuid, asimdrdm, jscvt, fcma, lrcpc, dcpop, sha3, asimddp, sha512, sve, asimdfhm, dit, uscat, ilrcpc, flagm, sb, paca, pacg, dcpodp, sve2, sveaes, svepmull, svebitperm, svesha3, flagm2, frint, svei8mm, svebf16, i8mm, bf16, dgh, rng, bti, ecv, afp, wfxt |
Ecpus | 31.9 |
Scalability | 99.69 |
System Resources and Accelerators
| Memory | |
|---|---|
Memory Amount | 64 GiB |
Memory Amount Actual | 63 GiB |
| Accelerators | |
|---|---|
Accelerator Count | 0 |
Accelerator Memory Min | 0 MiB |
Accelerator Memory Total | 0 MiB |
Accelerators |
| Storage | |
|---|---|
Storage Size | 0 GB |
Storages | |
Compatible Storage IDs | standard, gp2, gp3, st1, sc1, io1, io2 |
| Network | |
|---|---|
Network Speed Baseline | 17 Gbps |
Network Speed Max | 17 Gbps |
Network Storage Speed Baseline | 12 Gbps |
Network Storage Speed Max | 12 Gbps |
Inbound Traffic | 0 GB/month |
Outbound Traffic | 0 GB/month |
IPv4 | 0 |
CPU and System Topology
Server Description
An ARMv9 compute-optimized server with 32 physical cores and 64 GB RAM for software compilation, database tasks, and web serving.
Amazon Web Services c9g.8xlarge is a compute-optimized instance powered by a 32-core AWS ARMv9 Neoverse-V3 processor operating at 3.3 GHz on the AWS Nitro hypervisor. It features 32 dedicated physical cores, 64 GB of RAM, 48 MB of L3 cache, AES cryptographic acceleration, and a baseline network bandwidth of 17 Gbps, without bundled local storage or GPU hardware. Benchmark evaluations demonstrate top-tier execution in software compilation with Clang, text processing, single-threaded compression, static web serving throughput, and database operations. It also delivers strong multi-core processing in Geekbench and high Redis SET transaction rates. The 2 GB per core RAM allocation limits memory-intensive applications, while uncached memory bandwidth and single-core stress testing perform at average levels. The architecture provides high compute density for parallel workloads such as CI/CD pipelines, high-throughput web servers, Redis caches, and distributed application microservices.
Economics
Performance
Memory Bandwidth
Compression
OpenSSL
Geekbench Single-Core
Geekbench Multi-Core
Passmark CPU Scores
| BENCHMARK | SCORE |
|---|---|
Mark | 36,547 |
Compression | 298,023 |
Encryption | 9,429 |
Extended Instructions | 43,115 |
Floating Point Maths | 244,319 |
Integer Maths | 195,515 |
Physics | 9,807 |
Prime Numbers | 566 |
Single Threaded | 2,462 |
String Sorting | 170,310 |
Passmark Memory Scores
| BENCHMARK | SCORE |
|---|---|
Memory Mark | 4,503 |
Database Operations | 47,005 |
Memory Latency | 27 |
Memory Read Cached | 24,918 |
Memory Read Uncached | 24,140 |
Memory Write | 24,775 |
Stress-ng Stressors
| CPU integer | Single | Multi | Scaling |
|---|---|---|---|
atomic | 183.13 | 33.02 | 0.18× |
bitops | 164,976 | 5,272,612 | 31.96× |
branch | 319,713 | 10,212,128 | 31.94× |
funccall | 2,278 | 72,761 | 31.94× |
funcret | 41,046 | 1,294,377 | 31.53× |
hash | 181,060 | 5,781,229 | 31.93× |
intmath | 39,955 | 1,264,371 | 31.64× |
nop | 429,551 | 13,699,631 | 31.89× |
prime | 600,270 | 19,171,117 | 31.94× |
rotate | 148,391 | 4,749,475 | 32.01× |
str | 937,117 | 29,801,127 | 31.80× |
wcs | 278,832 | 8,952,981 | 32.11× |
| Cryptography | Single | Multi | Scaling |
|---|---|---|---|
crypt | 4,291 | 136,752 | 31.87× |
| Compression | Single | Multi | Scaling |
|---|---|---|---|
jpeg | 903.04 | 28,719 | 31.80× |
zlib | 41.55 | 1,476 | 35.52× |
| Hypervisor | Single | Multi | Scaling |
|---|---|---|---|
clock | 52,788 | 614,571 | 11.64× |
clone | 405.43 | 7,431 | 18.33× |
context | 3,950 | 129,127 | 32.69× |
cpu-sched | 62.03 | 2,014 | 32.47× |
eventfd | 151,787 | 2,451,319 | 16.15× |
fault | 28,900 | 471,888 | 16.33× |
fork | 7,564 | 75,542 | 9.99× |
getrandom | 73,963 | 2,360,182 | 31.91× |
hrtimers | 678,436 | 5,515,056 | 8.13× |
mprotect | 1,579,736 | 17,143,848 | 10.85× |
mtx | 9,625,736 | 1,733,619,028 | 180.10× |
munmap | 5,240 | 86,924 | 16.59× |
null | 675,513 | 22,339,977 | 33.07× |
pipe | 1,401,332 | 26,194,170 | 18.69× |
priv-instr | 1,129,152 | 13,751,272 | 12.18× |
resched | 3,043,901 | 7,620,702 | 2.50× |
switch | 271,048 | 22,285,836 | 82.22× |
timermix | 585,186 | 16,740,010 | 28.61× |
tlb-shootdown | 19,887 | 246,791 | 12.41× |
vdso | 61,087,731 | 2,022,721,977 | 33.11× |
vfork | 65,786 | 479,098 | 7.28× |
yield | 54,292,396 | 63,258,772 | 1.17× |
zero | 3,275,752 | 105,334,519 | 32.16× |
| CPU float/SIMD | Single | Multi | Scaling |
|---|---|---|---|
eigen | 2,242 | 71,594 | 31.93× |
expmath | 425.18 | 13,561 | 31.90× |
fma | 852,151 | 27,212,217 | 31.93× |
fp | 176.96 | 5,609 | 31.70× |
fractal | 9.2 | 289.03 | 31.42× |
hyperbolic | 407.96 | 13,021 | 31.92× |
logmath | 490.91 | 15,668 | 31.92× |
matrix | 7,984 | 254,731 | 31.90× |
matrix-3d | 1,494 | 9,632 | 6.45× |
monte-carlo | 269.6 | 8,757 | 32.48× |
mpfr | 1,886 | 60,122 | 31.87× |
powmath | 281.79 | 8,990 | 31.90× |
trig | 553.02 | 17,648 | 31.91× |
veccmp | 26,311 | 840,003 | 31.93× |
vecfp | 1,842 | 59,151 | 32.11× |
vecmath | 4,818 | 153,388 | 31.84× |
vecshuf | 1,030 | 32,871 | 31.93× |
vecwide | 32,358 | 958,805 | 29.63× |
| Algorithms | Single | Multi | Scaling |
|---|---|---|---|
bitonicsort | 11.2 | 358.39 | 32.00× |
bsearch | 421 | 13,461 | 31.97× |
bubblesort | 1.4 | 44.8 | 32.00× |
fibsearch | 413.42 | 13,209 | 31.95× |
heapsort | 15.4 | 492.19 | 31.96× |
hsearch | 10,838 | 346,251 | 31.95× |
insertionsort | 8 | 247.8 | 30.98× |
malloc | 4,571,629 | 91,250,432 | 19.96× |
mcontend | 301.08 | 77,193 | 256.39× |
mergesort | 38.8 | 1,234 | 31.81× |
qsort | 26.8 | 853.36 | 31.84× |
skiplist | 7,664 | 244,451 | 31.90× |
tree | 2.2 | 39.16 | 17.80× |
| Memory | Single | Multi | Scaling |
|---|---|---|---|
cache | 709,621 | 1,365,013 | 1.92× |
cachehammer | 2,410,224 | 52,404,395 | 21.74× |
cacheline | 88.36 | 4,361 | 49.36× |
l1cache | 389.62 | 12,389 | 31.80× |
memcpy | 1,012 | 30,582 | 30.21× |
memrate | 6.52 | 32.44 | 4.98× |
memthrash | 264.85 | 837.72 | 3.16× |
ptr-chase | 36,293,553 | 365,680,136 | 10.08× |
spinmem | 5,868 | 28,769 | 4.90× |
stream | 110.29 | 30,901 | 280.18× |
vm | 202,316 | 2,913,241 | 14.40× |
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
PostgreSQL heavy read-only throughput
Alternatives
Servers of the Same Family
| INSTANCE | vCPUs | MEMORY | Accelerators |
|---|---|---|---|
| c6g.medium | 1 | 2 GiB | 0 |
| c6gd.medium | 1 | 2 GiB | 0 |
| c6gn.medium | 1 | 2 GiB | 0 |
| c7a.medium | 1 | 2 GiB | 0 |
| c7g.medium | 1 | 2 GiB | 0 |
| c7gd.medium | 1 | 2 GiB | 0 |
| c7gn.medium | 1 | 2 GiB | 0 |
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