c8g.8xlarge by Amazon Web Services
(All-cores)
(Single-core)
Specifications
Server Metadata
Vendor ID | aws |
Name | c8g.8xlarge |
Description | Compute optimized [AWS Graviton processors] Gen8 8xlarge |
Family | c8g |
Hw Virt | |
Average Time To Start | 6.67 |
Status | active |
Observed At | 2026-10-22T17:46:06.159078 |
Availability
| REGION / ID | SPOT | ONDEMAND |
|---|---|---|
Hyderabad (IN) / ap-south-2 | 0.141033 USD/h | 0.8637 USD/h |
Mumbai (IN) / ap-south-1 | 0.381267 USD/h | 0.8637 USD/h |
(MY) / ap-southeast-5 | 0.3448 USD/h | 1.2461 USD/h |
(TH) / ap-southeast-7 | 0.440267 USD/h | 1.2461 USD/h |
Ohio (US) / us-east-2 | 0.406367 USD/h | 1.2717 USD/h |
Northern Virgina (US) / us-east-1 | 0.42026 USD/h | 1.2762 USD/h |
Oregon (US) / us-west-2 | 0.483775 USD/h | 1.2762 USD/h |
Stockholm (SE) / eu-north-1 | 0.165267 USD/h | 1.3616 USD/h |
Aragón (ES) / eu-south-2 | 0.1364 USD/h | 1.3642 USD/h |
Dublin (IE) / eu-west-1 | 0.716267 USD/h | 1.3645 USD/h |
Calgary (CA) / ca-west-1 | 0.4971 USD/h | 1.3914 USD/h |
Quebec (CA) / ca-central-1 | 0.5597 USD/h | 1.3914 USD/h |
Tel Aviv (IL) / il-central-1 | - | 1.4326 USD/h |
Seoul (KR) / ap-northeast-2 | 0.40855 USD/h | 1.4362 USD/h |
Taipei (TW) / ap-east-2 | 0.4302 USD/h | 1.4406 USD/h |
Frankfurt (DE) / eu-central-1 | 0.5671 USD/h | 1.4512 USD/h |
Jakarta (ID) / ap-southeast-3 | 0.154367 USD/h | 1.4661 USD/h |
Singapore (SG) / ap-southeast-1 | 0.724 USD/h | 1.4662 USD/h |
Milan (IT) / eu-south-1 | 0.418067 USD/h | 1.5075 USD/h |
London (GB) / eu-west-2 | 0.57955 USD/h | 1.511 USD/h |
Paris (FR) / eu-west-3 | 0.585267 USD/h | 1.511 USD/h |
California (US) / us-west-1 | 0.8606 USD/h | 1.5859 USD/h |
Zurich (CH) / eu-central-2 | 0.61955 USD/h | 1.5965 USD/h |
Osaka (JP) / ap-northeast-3 | 0.4714 USD/h | 1.6006 USD/h |
Tokyo (JP) / ap-northeast-1 | 0.6339 USD/h | 1.601 USD/h |
Hong Kong (HK) / ap-east-1 | 0.2643 USD/h | 1.6016 USD/h |
Melbourne (AU) / ap-southeast-4 | 0.296033 USD/h | 1.6605 USD/h |
Sydney (AU) / ap-southeast-2 | 0.604 USD/h | 1.6608 USD/h |
Cape Town (ZA) / af-south-1 | 0.520167 USD/h | 1.7056 USD/h |
(NZ) / ap-southeast-6 | 0.4552 USD/h | 1.7437 USD/h |
Sao Paulo (BR) / sa-east-1 | 0.577567 USD/h | 1.9549 USD/h |
Processor
vCPUs | 32 |
Hypervisor | nitro |
CPU Allocation | Dedicated |
CPU Cores | 32 |
CPU Speed | 2.8 GHz |
CPU Architecture | arm64 |
CPU Manufacturer | AWS |
CPU Family | ARMv9 |
CPU Model | Neoverse-V2 |
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 | 36 MiB |
CPU L3 Cache Total | 36 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, ssbs, sb, paca, pacg, dcpodp, sve2, sveaes, svepmull, svebitperm, svesha3, flagm2, frint, svei8mm, svebf16, i8mm, bf16, dgh, rng, bti |
Ecpus | 32 |
Scalability | 100 |
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 |
| NETWORK | |
|---|---|
Network Speed Baseline | 15 Gbps |
Network Speed Max | 15 Gbps |
Network Storage Speed Baseline | 10 Gbps |
Network Storage Speed Max | 10 Gbps |
Inbound Traffic | 0 GB/month |
Outbound Traffic | 0 GB/month |
IPv4 | 0 |
CPU and System Topology
Server Description
An arm64 compute-optimized instance featuring thirty-two dedicated cores and top-tier memory bandwidth for database and multi-threaded workloads.
Amazon Web Services c8g.8xlarge is an arm64 compute-optimized instance featuring 32 dedicated physical cores powered by the AWS Graviton Neoverse-V2 processor. Operating at 2.8 GHz, it provides 64.0 GB of system memory (2.0 GB per core) and a 15 Gbps baseline network bandwidth, with no local storage or GPU accelerators. Benchmarks reveal top-tier memory bandwidth, with uncached read-only speeds of 391.61 GB/sec, and top-tier multi-core performance, as evidenced by a Geekbench multi-core score of 21,249.0. While single-core operations and large-model LLM prompt processing (5.89 tokens/sec) represent performance tradeoffs, the instance excels in memory-bound and multi-threaded tasks. It is highly suited for database operations, software compilation, static web serving, and multi-threaded decompression workloads.
Economics
Performance
Memory Bandwidth
Compression
OpenSSL
Geekbench Single-Core
Geekbench Multi-Core
Passmark CPU Scores
| BENCHMARK | SCORE |
|---|---|
Mark | 26,369 |
Compression | 212,985 |
Encryption | 6,033 |
Extended Instructions | 29,503 |
Floating Point Maths | 194,015 |
Integer Maths | 166,973 |
Physics | 9,130 |
Prime Numbers | 434 |
Single Threaded | 1,944 |
String Sorting | 147,730 |
Passmark Memory Scores
| BENCHMARK | SCORE |
|---|---|
Memory Mark | 3,211 |
Database Operations | 46,834 |
Memory Latency | 47 |
Memory Read Cached | 18,909 |
Memory Read Uncached | 19,874 |
Memory Write | 21,290 |
Stress-ng Stressors
| CPU integer | Single | Multi | Scaling |
|---|---|---|---|
atomic | 149.33 | 24.56 | 0.16× |
bitops | 144,601 | 4,629,696 | 32.02× |
branch | 226,938 | 7,260,612 | 31.99× |
funccall | 1,971 | 63,003 | 31.97× |
funcret | 34,267 | 976,787 | 28.51× |
hash | 155,670 | 4,972,671 | 31.94× |
intmath | 32,817 | 1,047,800 | 31.93× |
nop | 455,848 | 14,616,944 | 32.07× |
prime | 499,646 | 15,960,004 | 31.94× |
rotate | 134,227 | 4,279,638 | 31.88× |
str | 750,813 | 23,661,004 | 31.51× |
wcs | 202,744 | 6,475,797 | 31.94× |
| Cryptography | Single | Multi | Scaling |
|---|---|---|---|
crypt | 3,522 | 110,769 | 31.45× |
| Compression | Single | Multi | Scaling |
|---|---|---|---|
jpeg | 727.63 | 23,078 | 31.72× |
zlib | 38.71 | 1,337 | 34.54× |
| Hypervisor | Single | Multi | Scaling |
|---|---|---|---|
clock | 48,271 | 470,976 | 9.76× |
clone | 373.57 | 6,542 | 17.51× |
context | 3,416 | 113,110 | 33.11× |
cpu-sched | 78.81 | 2,054 | 26.06× |
eventfd | 118,467 | 1,338,291 | 11.30× |
fault | 23,252 | 349,595 | 15.04× |
fork | 6,018 | 75,781 | 12.59× |
getrandom | 62,247 | 1,989,820 | 31.97× |
hrtimers | 165,485 | 5,292,171 | 31.98× |
mprotect | 1,313,167 | 14,265,495 | 10.86× |
mtx | 9,736,475 | 1,460,709,037 | 150.02× |
munmap | 4,178 | 83,845 | 20.07× |
null | 626,232 | 19,571,051 | 31.25× |
pipe | 1,200,355 | 21,425,979 | 17.85× |
priv-instr | 898,028 | 13,439,306 | 14.97× |
resched | 2,746,154 | 4,627,915 | 1.69× |
switch | 187,791 | 17,297,787 | 92.11× |
timermix | 564,959 | 18,004,408 | 31.87× |
tlb-shootdown | 18,514 | 214,796 | 11.60× |
vdso | 44,447,236 | 1,417,800,878 | 31.90× |
vfork | 42,558 | 282,462 | 6.64× |
yield | 42,227,267 | 46,156,825 | 1.09× |
zero | 2,796,118 | 90,406,811 | 32.33× |
| CPU float/SIMD | Single | Multi | Scaling |
|---|---|---|---|
eigen | 1,935 | 61,875 | 31.97× |
expmath | 366.49 | 11,717 | 31.97× |
fma | 775,520 | 22,487,133 | 29.00× |
fp | 153.6 | 4,898 | 31.89× |
fractal | 7.8 | 245.04 | 31.42× |
hyperbolic | 354.09 | 11,312 | 31.95× |
logmath | 429.29 | 13,726 | 31.97× |
matrix | 6,601 | 210,647 | 31.91× |
matrix-3d | 1,342 | 18,384 | 13.70× |
monte-carlo | 237.02 | 7,710 | 32.53× |
mpfr | 1,433 | 45,929 | 32.04× |
powmath | 248.94 | 7,957 | 31.96× |
trig | 476.11 | 15,212 | 31.95× |
veccmp | 21,807 | 697,111 | 31.97× |
vecfp | 1,241 | 39,133 | 31.53× |
vecmath | 4,444 | 142,061 | 31.97× |
vecshuf | 875.54 | 27,984 | 31.96× |
vecwide | 25,216 | 763,417 | 30.27× |
| Algorithms | Single | Multi | Scaling |
|---|---|---|---|
bitonicsort | 9 | 287.99 | 32.00× |
bsearch | 341.47 | 10,918 | 31.97× |
bubblesort | 1.2 | 38.4 | 32.00× |
fibsearch | 365.07 | 11,667 | 31.96× |
heapsort | 13 | 415.79 | 31.98× |
hsearch | 8,505 | 271,209 | 31.89× |
insertionsort | 6.8 | 215 | 31.62× |
malloc | 3,666,269 | 75,940,356 | 20.71× |
mcontend | 271.68 | 63,953 | 235.40× |
mergesort | 33.2 | 1,068 | 32.17× |
qsort | 22.4 | 714.97 | 31.92× |
skiplist | 6,757 | 215,902 | 31.95× |
tree | 1.8 | 31.95 | 17.75× |
| Memory | Single | Multi | Scaling |
|---|---|---|---|
cache | 528,286 | 845,648 | 1.60× |
cachehammer | 2,021,628 | 46,386,178 | 22.94× |
cacheline | 79.56 | 3,680 | 46.26× |
l1cache | 330.97 | 10,528 | 31.81× |
memcpy | 688.13 | 21,957 | 31.91× |
memrate | 5.93 | 61.48 | 10.37× |
memthrash | 238.16 | 726.58 | 3.05× |
ptr-chase | 26,443,834 | 298,485,539 | 11.29× |
spinmem | 4,296 | 28,840 | 6.71× |
stream | 136.47 | 77,232 | 565.93× |
vm | 142,923 | 2,524,245 | 17.66× |
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 |
|---|---|---|---|
| c8g.medium | 1 | 2 GiB | 0 |
| c8g.large | 2 | 4 GiB | 0 |
| c8g.xlarge | 4 | 8 GiB | 0 |
| c8g.2xlarge | 8 | 16 GiB | 0 |
| c8g.4xlarge | 16 | 32 GiB | 0 |
| c8g.12xlarge | 48 | 96 GiB | 0 |
| c8g.16xlarge | 64 | 128 GiB | 0 |
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