r8i.2xlarge by Amazon Web Services
(All-cores)
(Single-core)
Specifications
Server Metadata
Vendor ID | aws |
Name | r8i.2xlarge |
Description | Memory optimized [Intel processors] Gen8 2xlarge |
Family | r8i |
Hw Virt | |
Status | active |
Observed At | 2026-09-12T09:13:55.962355 |
Availability
| REGION / ID | SPOT | ONDEMAND |
|---|---|---|
Ohio (US) / us-east-2 | 0.1678 USD/h | 0.5557 USD/h |
Northern Virgina (US) / us-east-1 | 0.22526 USD/h | 0.5557 USD/h |
Oregon (US) / us-west-2 | 0.209775 USD/h | 0.5557 USD/h |
(MY) / ap-southeast-5 | 0.175533 USD/h | 0.5698 USD/h |
Mumbai (IN) / ap-south-1 | 0.1318 USD/h | 0.5733 USD/h |
Hyderabad (IN) / ap-south-2 | 0.127067 USD/h | 0.5733 USD/h |
Stockholm (SE) / eu-north-1 | 0.1152 USD/h | 0.591 USD/h |
Calgary (CA) / ca-west-1 | 0.1693 USD/h | 0.6086 USD/h |
Quebec (CA) / ca-central-1 | 0.2115 USD/h | 0.6086 USD/h |
California (US) / us-west-1 | 0.25755 USD/h | 0.6174 USD/h |
Aragón (ES) / eu-south-2 | 0.074967 USD/h | 0.6218 USD/h |
Dublin (IE) / eu-west-1 | 0.299233 USD/h | 0.6218 USD/h |
Milan (IT) / eu-south-1 | 0.198967 USD/h | 0.6527 USD/h |
Paris (FR) / eu-west-3 | 0.2351 USD/h | 0.6527 USD/h |
London (GB) / eu-west-2 | 0.221533 USD/h | 0.6527 USD/h |
Tel Aviv (IL) / il-central-1 | 0.247767 USD/h | 0.6529 USD/h |
Sydney (AU) / ap-southeast-2 | 0.253 USD/h | 0.6659 USD/h |
Seoul (KR) / ap-northeast-2 | 0.18135 USD/h | 0.6703 USD/h |
Tokyo (JP) / ap-northeast-1 | 0.2372 USD/h | 0.6703 USD/h |
Singapore (SG) / ap-southeast-1 | 0.266633 USD/h | 0.6703 USD/h |
Frankfurt (DE) / eu-central-1 | 0.2836 USD/h | 0.6703 USD/h |
United Arab Emirates / me-central-1 | 0.28 USD/h | 0.684 USD/h |
(NZ) / ap-southeast-6 | 0.2025 USD/h | 0.6992 USD/h |
Zurich (CH) / eu-central-2 | 0.2032 USD/h | 0.7374 USD/h |
Cape Town (ZA) / af-south-1 | 0.2158 USD/h | 0.7409 USD/h |
Sao Paulo (BR) / sa-east-1 | 0.220167 USD/h | 0.8864 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 | 102.5 |
System Resources and Accelerators
| MEMORY | |
|---|---|
Memory Amount | 64 GiB |
Memory Amount Actual | 64 GiB |
Memory Generation | DDR5 |
Memory Speed | 7200 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 | 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 |
Server Description
A memory-optimized x86 server featuring sixty-four gigabytes of high-speed DDR5 RAM and advanced Intel matrix extensions for memory-bound workloads.
The Amazon Web Services r8i.2xlarge is a memory-optimized instance featuring an Intel Xeon 6975P-C processor with 8 vCPUs, 4 physical cores, and a 3.9 GHz clock speed. It is equipped with 64.0 GB of DDR5 memory running at 7 GHz, yielding 8.0 GB of RAM per core, but lacks local storage and dedicated GPUs. Operating on the Nitro hypervisor, the instance supports advanced instruction sets like AVX-512 and AMX. Benchmark results show strong single-core capabilities, including a top-tier Geekbench text processing score of 2958.0, alongside average multi-core and database performance. While memory bandwidth is high, LLM text generation for 7B models is weak at 8.69 tokens per second. This instance is configured for memory-intensive applications such as caching layers, database operations, and text processing, offering qualitative cost efficiency for workloads requiring high memory density without local storage needs.
Economics
Performance
Memory Bandwidth
Compression
OpenSSL
Geekbench Single-Core
Geekbench Multi-Core
Passmark CPU Scores
| BENCHMARK | SCORE |
|---|---|
Mark | 15567 |
Compression | 162122 |
Encryption | 9049 |
Extended Instructions | 11354 |
Floating Point Maths | 29852 |
Integer Maths | 41203 |
Physics | 1951 |
Prime Numbers | 89 |
Single Threaded | 3266 |
String Sorting | 21252 |
Passmark Memory Scores
| BENCHMARK | SCORE |
|---|---|
Memory Mark | 2332 |
Database Operations | 4394 |
Memory Latency | 77 |
Memory Read Cached | 28902 |
Memory Read Uncached | 14589 |
Memory Write | 10735 |
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 |
|---|---|---|---|
| r8i.large | 2 | 16 GiB | 0 |
| r8i.xlarge | 4 | 32 GiB | 0 |
| r8i.4xlarge | 16 | 128 GiB | 0 |
| r8i.8xlarge | 32 | 256 GiB | 0 |
| r8i.12xlarge | 48 | 384 GiB | 0 |
| r8i.16xlarge | 64 | 512 GiB | 0 |
| r8i.24xlarge | 96 | 768 GiB | 0 |
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