r7iz.2xlarge by Amazon Web Services
(All-cores)
(Single-core)
Specifications
Server Metadata
Vendor ID | aws |
Name | r7iz.2xlarge |
Description | Memory optimized [Intel processors] [High performance] Gen7 2xlarge |
Family | r7iz |
Hw Virt | |
Status | active |
Observed At | 2026-09-19T19:18:45.124933 |
Availability
| REGION / ID | SPOT | ONDEMAND |
|---|---|---|
Ohio (US) / us-east-2 | 0.291633 USD/h | 0.744 USD/h |
Oregon (US) / us-west-2 | 0.281575 USD/h | 0.744 USD/h |
Northern Virgina (US) / us-east-1 | 0.34662 USD/h | 0.744 USD/h |
Dublin (IE) / eu-west-1 | 0.4316 USD/h | 0.832 USD/h |
Frankfurt (DE) / eu-central-1 | 0.328767 USD/h | 0.9 USD/h |
Tokyo (JP) / ap-northeast-1 | 0.290167 USD/h | 0.908 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 | 6455B |
CPU L1D Cache | 48 KiB |
CPU L1D Cache Total | 192 KiB |
CPU L1I Cache | 32 KiB |
CPU L1I Cache Total | 128 KiB |
CPU L2 Cache | 2 MiB |
CPU L2 Cache Total | 8 MiB |
CPU L3 Cache | 60 MiB |
CPU L3 Cache Total | 60 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, 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, 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 | 4800 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 | 3.125 Gbps |
Network Speed Max | 12.5 Gbps |
Network Storage Speed Baseline | 3.168 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_64 server combining high-frequency Intel Xeon processing with fast DDR5 memory for single-thread intensive workloads.
Amazon Web Services r7iz.2xlarge is a memory-optimized server featuring an 8-vCPU Intel Xeon 6455B processor running at 3.9 GHz and 64.0 GB of DDR5 memory. Built on the x86_64 architecture and managed by the Nitro hypervisor, this instance delivers 8.0 GB of RAM per core. Benchmark results highlight top-tier single-core capabilities, with Geekbench single-core and text processing scores placing in the top 10% tier. Single-threaded gzip compression and bzip3 decompression also show strong performance in the top 25% tier. However, the server lacks local storage and GPUs, and baseline network bandwidth is limited to 3 Gbps. The r7iz.2xlarge is designed for memory-intensive workloads that benefit from high clock speeds, such as relational databases, software compilation, and memory-cached applications.
Economics
Performance
Memory Bandwidth
Compression
OpenSSL
Geekbench Single-Core
Geekbench Multi-Core
Passmark CPU Scores
| BENCHMARK | SCORE |
|---|---|
Mark | 15296 |
Compression | 149485 |
Encryption | 9116 |
Extended Instructions | 11449 |
Floating Point Maths | 29458 |
Integer Maths | 41378 |
Physics | 1992 |
Prime Numbers | 92 |
Single Threaded | 3155 |
String Sorting | 20793 |
Passmark Memory Scores
| BENCHMARK | SCORE |
|---|---|
Memory Mark | 2255 |
Database Operations | 4613 |
Memory Latency | 75 |
Memory Read Cached | 28752 |
Memory Read Uncached | 9767 |
Memory Write | 14429 |
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 |
|---|---|---|---|
| r7iz.large | 2 | 16 GiB | 0 |
| r7iz.xlarge | 4 | 32 GiB | 0 |
| r7iz.4xlarge | 16 | 128 GiB | 0 |
| r7iz.8xlarge | 32 | 256 GiB | 0 |
| r7iz.12xlarge | 48 | 384 GiB | 0 |
| r7iz.16xlarge | 64 | 512 GiB | 0 |
| r7iz.metal-16xl | 64 | 512 GiB | 0 |
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