c8i.2xlarge by Amazon Web Services
(All-cores)
(Single-core)
Specifications
Server Metadata
Vendor ID | aws |
Name | c8i.2xlarge |
Description | Compute optimized [Intel processors] Gen8 2xlarge |
Family | c8i |
Hw Virt | |
Average Time To Start | 6.67 |
Status | active |
Observed At | 2026-10-30T01:01:11.024173 |
Availability
| REGION / ID | SPOT | ONDEMAND |
|---|---|---|
(MY) / ap-southeast-5 | 0.145 USD/h | 0.3674 USD/h |
Hyderabad (IN) / ap-south-2 | 0.0375 USD/h | 0.3748 USD/h |
Ohio (US) / us-east-2 | 0.1199 USD/h | 0.3748 USD/h |
Mumbai (IN) / ap-south-1 | 0.1395 USD/h | 0.3748 USD/h |
Northern Virgina (US) / us-east-1 | 0.19646 USD/h | 0.3748 USD/h |
Oregon (US) / us-west-2 | 0.167925 USD/h | 0.3748 USD/h |
Stockholm (SE) / eu-north-1 | 0.085 USD/h | 0.4013 USD/h |
Aragón (ES) / eu-south-2 | 0.0421 USD/h | 0.4022 USD/h |
Dublin (IE) / eu-west-1 | 0.2178 USD/h | 0.4022 USD/h |
Quebec (CA) / ca-central-1 | 0.1857 USD/h | 0.4101 USD/h |
Seoul (KR) / ap-northeast-2 | 0.1319 USD/h | 0.4234 USD/h |
Frankfurt (DE) / eu-central-1 | 0.198267 USD/h | 0.4278 USD/h |
Singapore (SG) / ap-southeast-1 | 0.203933 USD/h | 0.4322 USD/h |
London (GB) / eu-west-2 | 0.158 USD/h | 0.4454 USD/h |
Paris (FR) / eu-west-3 | 0.197967 USD/h | 0.4454 USD/h |
California (US) / us-west-1 | 0.1699 USD/h | 0.4674 USD/h |
Tokyo (JP) / ap-northeast-1 | 0.199167 USD/h | 0.4719 USD/h |
Sydney (AU) / ap-southeast-2 | 0.224 USD/h | 0.4895 USD/h |
Cape Town (ZA) / af-south-1 | 0.1964 USD/h | 0.5028 USD/h |
(NZ) / ap-southeast-6 | 0.145 USD/h | 0.514 USD/h |
Sao Paulo (BR) / sa-east-1 | 0.1073 USD/h | 0.5777 USD/h |
Processor
vCPUs | 8 |
Hypervisor | nitro |
CPU Allocation | Dedicated |
CPU Cores | 4 |
CPU Speed | 3.9 GHz |
CPU Architecture | x86_64 |
CPU Manufacturer | Intel |
CPU Family | Xeon |
CPU Model | 6975P-C |
CPU L1D Cache | 48 KiB |
CPU L1D Cache Total | 192 KiB |
CPU L1I Cache | 64 KiB |
CPU L1I Cache Total | 256 KiB |
CPU L2 Cache | 2 MiB |
CPU L2 Cache Total | 8 MiB |
CPU L3 Cache | 480 MiB |
CPU L3 Cache Total | 480 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, ss, ht, syscall, nx, pdpe1gb, rdtscp, lm, constant_tsc, arch_perfmon, rep_good, nopl, xtopology, nonstop_tsc, cpuid, aperfmperf, tsc_known_freq, pni, pclmulqdq, monitor, ssse3, fma, cx16, pdcm, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, tsc_deadline_timer, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, abm, 3dnowprefetch, cpuid_fault, ssbd, ibrs, ibpb, stibp, ibrs_enhanced, fsgsbase, tsc_adjust, bmi1, avx2, smep, bmi2, erms, invpcid, avx512f, avx512dq, rdseed, adx, smap, avx512ifma, clflushopt, clwb, avx512cd, sha_ni, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, avx_vnni, avx512_bf16, wbnoinvd, ida, arat, avx512vbmi, umip, pku, ospke, waitpkg, avx512_vbmi2, gfni, vaes, vpclmulqdq, avx512_vnni, avx512_bitalg, tme, avx512_vpopcntdq, rdpid, bus_lock_detect, cldemote, movdiri, movdir64b, md_clear, serialize, amx_bf16, avx512_fp16, amx_tile, amx_int8, flush_l1d, arch_capabilities |
Ecpus | 4.1 |
Scalability | 51.25 |
System Resources and Accelerators
| MEMORY | |
|---|---|
Memory Amount | 16 GiB |
Memory Amount Actual | 16 GiB |
Memory Generation | DDR5 |
Memory Speed | 7200 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 | 3.75 Gbps |
Network Speed Max | 15 Gbps |
Network Storage Speed Baseline | 2.5 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 x86_64 compute-optimized instance featuring dedicated Intel Xeon processors and DDR5 memory for single-threaded and text processing workloads.
Amazon Web Services c8i.2xlarge is an x86_64 compute-optimized server instance featuring 8 dedicated vCPUs powered by an Intel Xeon 6975P-C processor running at 3.9 GHz. It is equipped with 16.0 GB of DDR5 memory at 7 GHz, a 480 MB L3 cache, and a baseline network bandwidth of 4 Gbps, with no local storage or GPU hardware. Benchmarks indicate strong single-threaded capabilities, with top-tier text processing performance and strong single-threaded gzip compression. Multi-core performance, memory bandwidth, and database operations align with average tiers. The instance supports advanced instruction sets like AVX-512 and AMX, making it qualitatively cost-effective for compute-heavy tasks. However, the 2.0 GB of RAM per core ratio presents a tradeoff for memory-intensive applications. It is best suited for software compilation, text processing, lightweight model inference, and general compute-bound workloads.
Economics
Performance
Memory Bandwidth
Compression
OpenSSL
Geekbench Single-Core
Geekbench Multi-Core
Passmark CPU Scores
| BENCHMARK | SCORE |
|---|---|
Mark | 15,544 |
Compression | 160,409 |
Encryption | 9,123 |
Extended Instructions | 11,362 |
Floating Point Maths | 29,877 |
Integer Maths | 41,239 |
Physics | 1,831 |
Prime Numbers | 89 |
Single Threaded | 3,264 |
String Sorting | 21,462 |
Passmark Memory Scores
| BENCHMARK | SCORE |
|---|---|
Memory Mark | 2,282 |
Database Operations | 5,059 |
Memory Latency | 66 |
Memory Read Cached | 28,312 |
Memory Read Uncached | 16,017 |
Memory Write | 12,135 |
Stress-ng Stressors
| CPU integer | Single | Multi | Scaling |
|---|---|---|---|
atomic | 210.11 | 189.62 | 0.90× |
bitops | 163,917 | 760,129 | 4.64× |
branch | 153,487 | 1,002,559 | 6.53× |
funccall | 851.11 | 4,496 | 5.28× |
funcret | 13,959 | 88,281 | 6.32× |
hash | 187,671 | 1,109,329 | 5.91× |
intmath | 70,542 | 353,433 | 5.01× |
nop | 288,020 | 1,242,666 | 4.31× |
prime | 522,425 | 2,796,679 | 5.35× |
rotate | 108,446 | 719,916 | 6.64× |
str | 1,050,111 | 6,139,003 | 5.85× |
wcs | 789,924 | 3,679,388 | 4.66× |
| Cryptography | Single | Multi | Scaling |
|---|---|---|---|
crypt | 3,479 | 18,834 | 5.41× |
| Compression | Single | Multi | Scaling |
|---|---|---|---|
jpeg | 895.16 | 4,743 | 5.30× |
zlib | 49.7 | 426.48 | 8.58× |
| Hypervisor | Single | Multi | Scaling |
|---|---|---|---|
clock | 57,038 | 289,929 | 5.08× |
clone | 460.91 | 2,005 | 4.35× |
context | 5,809 | 38,609 | 6.65× |
cpu-sched | 62.7 | 504.52 | 8.05× |
eventfd | 163,030 | 1,194,592 | 7.33× |
fault | 34,865 | 145,891 | 4.18× |
fork | 5,444 | 43,767 | 8.04× |
getrandom | 63,769 | 381,401 | 5.98× |
hrtimers | 201,142 | 1,128,320 | 5.61× |
mprotect | 1,081,990 | 3,369,086 | 3.11× |
mtx | 20,498,772 | 307,921,275 | 15.02× |
munmap | 4,497 | 31,200 | 6.94× |
null | 998,176 | 6,534,849 | 6.55× |
pipe | 704,683 | 6,693,961 | 9.50× |
priv-instr | 896,607 | 5,149,631 | 5.74× |
resched | 4,387,843 | 904,253 | 0.21× |
switch | 285,147 | 3,326,604 | 11.67× |
timermix | 212,626 | 1,387,059 | 6.52× |
tlb-shootdown | 8,988 | 20,287 | 2.26× |
tsc | 633,847 | 4,120,634 | 6.50× |
usersyscall | 761,784 | 4,464,379 | 5.86× |
vdso | 95,558,311 | 592,653,491 | 6.20× |
vfork | 24,429 | 203,716 | 8.34× |
x86syscall | 10,959,856 | 74,690,150 | 6.81× |
yield | 9,964,932 | 9,459,305 | 0.95× |
zero | 6,997,294 | 46,324,240 | 6.62× |
| CPU float/SIMD | Single | Multi | Scaling |
|---|---|---|---|
eigen | 18,063 | 92,317 | 5.11× |
expmath | 3,856 | 22,810 | 5.92× |
fma | 1,313,644 | 7,305,680 | 5.56× |
fp | 243.38 | 1,361 | 5.59× |
fractal | 7.6 | 42.2 | 5.55× |
hyperbolic | 4,436 | 26,465 | 5.97× |
logmath | 5,684 | 36,639 | 6.45× |
matrix | 6,002 | 27,586 | 4.60× |
matrix-3d | 549.02 | 2,497 | 4.55× |
monte-carlo | 322.72 | 2,108 | 6.53× |
mpfr | 1,906 | 9,856 | 5.17× |
powmath | 2,156 | 13,356 | 6.19× |
trig | 2,979 | 15,863 | 5.32× |
veccmp | 26,691 | 124,857 | 4.68× |
vecfp | 1,661 | 8,638 | 5.20× |
vecmath | 4,203 | 24,077 | 5.73× |
vecshuf | 889.95 | 4,139 | 4.65× |
vecwide | 37,132 | 167,552 | 4.51× |
| Algorithms | Single | Multi | Scaling |
|---|---|---|---|
bitonicsort | 10.6 | 52.8 | 4.98× |
bsearch | 342.01 | 1,733 | 5.07× |
bubblesort | 1.2 | 6.4 | 5.33× |
fibsearch | 324.87 | 1,657 | 5.10× |
heapsort | 10.8 | 60.8 | 5.63× |
hsearch | 9,645 | 45,489 | 4.72× |
insertionsort | 14 | 56 | 4.00× |
malloc | 2,887,155 | 16,331,114 | 5.66× |
mcontend | 162.84 | 1,574 | 9.67× |
mergesort | 33.6 | 197 | 5.86× |
qsort | 24 | 137.4 | 5.73× |
skiplist | 7,000 | 43,819 | 6.26× |
tree | 1.6 | 9.6 | 6.00× |
| Memory | Single | Multi | Scaling |
|---|---|---|---|
cache | 330,513 | 1,041,800 | 3.15× |
cachehammer | 176,050 | 1,252,047 | 7.11× |
cacheline | 59.12 | 468.66 | 7.93× |
l1cache | 812.44 | 1,677 | 2.06× |
memcpy | 764.35 | 3,162 | 4.14× |
memrate | 0.13 | 1.07 | 8.23× |
memthrash | 238.74 | 372.45 | 1.56× |
ptr-chase | 27,304,013 | 166,799,419 | 6.11× |
spinmem | 224.99 | 363.37 | 1.62× |
stream | 4.5 | 118.13 | 26.25× |
vm | 146,627 | 292,377 | 1.99× |
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 |
|---|---|---|---|
| c8i.large | 2 | 4 GiB | 0 |
| c8i.xlarge | 4 | 8 GiB | 0 |
| c8i.4xlarge | 16 | 32 GiB | 0 |
| c8i.8xlarge | 32 | 64 GiB | 0 |
| c8i.12xlarge | 48 | 96 GiB | 0 |
| c8i.16xlarge | 64 | 128 GiB | 0 |
| c8i.24xlarge | 96 | 192 GiB | 0 |
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