r8i-flex.2xlarge by Amazon Web Services
(All-cores)
(Single-core)
Specifications
Server Metadata
Vendor ID | aws |
Name | r8i-flex.2xlarge |
Description | Memory optimized [Intel processors] Gen8 2xlarge |
Family | r8i-flex |
Hw Virt | |
Status | active |
Observed At | 2026-07-15T10:49:13.543046 |
Availability
| REGION / ID | SPOT | ONDEMAND |
|---|---|---|
Oregon (US) / us-west-2 | 0.2515 USD/h | 0.5279 USD/h |
Ohio (US) / us-east-2 | 0.2168 USD/h | 0.5279 USD/h |
Northern Virgina (US) / us-east-1 | 0.26232 USD/h | 0.5279 USD/h |
(MY) / ap-southeast-5 | 0.176467 USD/h | 0.5413 USD/h |
Hyderabad (IN) / ap-south-2 | 0.1801 USD/h | 0.5446 USD/h |
Mumbai (IN) / ap-south-1 | 0.180133 USD/h | 0.5446 USD/h |
Quebec (CA) / ca-central-1 | 0.202433 USD/h | 0.5782 USD/h |
California (US) / us-west-1 | 0.23805 USD/h | 0.5865 USD/h |
Aragón (ES) / eu-south-2 | 0.118033 USD/h | 0.5907 USD/h |
Dublin (IE) / eu-west-1 | 0.299 USD/h | 0.5907 USD/h |
London (GB) / eu-west-2 | 0.202067 USD/h | 0.62 USD/h |
Paris (FR) / eu-west-3 | 0.218767 USD/h | 0.62 USD/h |
Sydney (AU) / ap-southeast-2 | 0.234433 USD/h | 0.6326 USD/h |
Seoul (KR) / ap-northeast-2 | 0.20865 USD/h | 0.6368 USD/h |
Tokyo (JP) / ap-northeast-1 | 0.220667 USD/h | 0.6368 USD/h |
Singapore (SG) / ap-southeast-1 | 0.255733 USD/h | 0.6368 USD/h |
Frankfurt (DE) / eu-central-1 | 0.2661 USD/h | 0.6368 USD/h |
(NZ) / ap-southeast-6 | 0.188467 USD/h | 0.6642 USD/h |
Cape Town (ZA) / af-south-1 | 0.1538 USD/h | 0.7038 USD/h |
Sao Paulo (BR) / sa-east-1 | 0.208167 USD/h | 0.8421 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, rep_good, nopl, xtopology, nonstop_tsc, cpuid, tsc_known_freq, pni, pclmulqdq, 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 | 1.875 Gbps |
Network Speed Max | 15 Gbps |
Network Storage Speed Baseline | 1.25 Gbps |
Network Storage Speed Max | 10 Gbps |
Inbound Traffic | 0 GB/month |
Outbound Traffic | 0 GB/month |
IPv4 | 0 |
Server Description
A memory-optimized virtual instance featuring high-speed DDR5 RAM and advanced Intel Xeon matrix extensions for memory-intensive enterprise workloads.
Amazon Web Services r8i-flex.2xlarge is a memory-optimized instance featuring 8 vCPUs, 4 physical cores, and 64.0 GB of DDR5 RAM running at 7 GHz. Powered by an Intel Xeon 6975P-C processor at 3.9 GHz on the Nitro hypervisor, it supports advanced instruction sets like AVX-512 and AMX for accelerated vector and matrix operations. The instance lacks local storage and dedicated GPUs, relying on a baseline network bandwidth of 2 Gbps. Benchmark results show strong single-core performance, particularly in text processing and single-threaded compression, while multi-core metrics and database operations align with average tiers. The high memory-to-vCPU ratio provides qualitative cost efficiency for memory-bound applications. It is highly suited for database operations, caching layers, and memory-intensive enterprise workloads.
Economics
Performance
Memory Bandwidth
Compression
OpenSSL
Geekbench Single-Core
Geekbench Multi-Core
Passmark CPU Scores
| BENCHMARK | SCORE |
|---|---|
Mark | 15612 |
Compression | 161537 |
Encryption | 9135 |
Extended Instructions | 11344 |
Floating Point Maths | 29883 |
Integer Maths | 41307 |
Physics | 1943 |
Prime Numbers | 90 |
Single Threaded | 3271 |
String Sorting | 21461 |
Passmark Memory Scores
| BENCHMARK | SCORE |
|---|---|
Memory Mark | 2252 |
Database Operations | 4607 |
Memory Latency | 76 |
Memory Read Cached | 28679 |
Memory Read Uncached | 11021 |
Memory Write | 11198 |
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-flex.large | 2 | 16 GiB | 0 |
| r8i-flex.xlarge | 4 | 32 GiB | 0 |
| r8i-flex.4xlarge | 16 | 128 GiB | 0 |
| r8i-flex.8xlarge | 32 | 256 GiB | 0 |
| r8i-flex.12xlarge | 48 | 384 GiB | 0 |
| r8i-flex.16xlarge | 64 | 512 GiB | 0 |
Similar Servers
| INSTANCE | VENDOR | vCPUs | MEMORY | GPUs |
|---|