r7iz.metal-16xl by Amazon Web Services
(All-cores)
(Single-core)
Specifications
Server Metadata
Vendor ID | aws |
Name | r7iz.metal-16xl |
Description | Memory optimized [Intel processors] [High performance] Gen7 metal-16xl |
Family | r7iz |
Hw Virt | |
Status | active |
Observed At | 2026-07-30T17:54:24.027401 |
Availability
| REGION / ID | SPOT | ONDEMAND |
|---|---|---|
Ohio (US) / us-east-2 | 1.296633 USD/h | 5.952 USD/h |
Northern Virgina (US) / us-east-1 | 1.83236 USD/h | 5.952 USD/h |
Oregon (US) / us-west-2 | 1.786975 USD/h | 5.952 USD/h |
Dublin (IE) / eu-west-1 | 1.849167 USD/h | 6.656 USD/h |
Frankfurt (DE) / eu-central-1 | 2.709733 USD/h | 7.2 USD/h |
Tokyo (JP) / ap-northeast-1 | 1.295133 USD/h | 7.264 USD/h |
Processor
vCPUs | 64 |
CPU Allocation | Dedicated |
CPU Cores | 32 |
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 | 2 MiB |
CPU L1I Cache | 32 KiB |
CPU L1I Cache Total | 1 MiB |
CPU L2 Cache | 2 MiB |
CPU L2 Cache Total | 64 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, dts, acpi, mmx, fxsr, sse, sse2, ss, ht, tm, pbe, syscall, nx, pdpe1gb, rdtscp, lm, constant_tsc, art, arch_perfmon, pebs, bts, rep_good, nopl, xtopology, nonstop_tsc, cpuid, aperfmperf, tsc_known_freq, pni, pclmulqdq, dtes64, monitor, ds_cpl, vmx, smx, est, tm2, ssse3, sdbg, fma, cx16, xtpr, pdcm, pcid, dca, sse4_1, sse4_2, x2apic, movbe, popcnt, tsc_deadline_timer, aes, xsave, avx, f16c, rdrand, lahf_lm, abm, 3dnowprefetch, cpuid_fault, epb, cat_l3, cat_l2, cdp_l3, intel_ppin, cdp_l2, ssbd, mba, ibrs, ibpb, stibp, ibrs_enhanced, tpr_shadow, flexpriority, ept, vpid, ept_ad, fsgsbase, tsc_adjust, bmi1, avx2, smep, bmi2, erms, invpcid, cqm, rdt_a, avx512f, avx512dq, rdseed, adx, smap, avx512ifma, clflushopt, clwb, intel_pt, avx512cd, sha_ni, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, cqm_llc, cqm_occup_llc, cqm_mbm_total, cqm_mbm_local, split_lock_detect, user_shstk, avx_vnni, avx512_bf16, wbnoinvd, dtherm, ida, arat, pln, pts, hwp, hwp_act_window, hwp_epp, hwp_pkg_req, vnmi, avx512vbmi, umip, pku, ospke, waitpkg, avx512_vbmi2, gfni, vaes, vpclmulqdq, avx512_vnni, avx512_bitalg, tme, avx512_vpopcntdq, la57, rdpid, bus_lock_detect, cldemote, movdiri, movdir64b, enqcmd, fsrm, md_clear, serialize, tsxldtrk, pconfig, arch_lbr, ibt, amx_bf16, avx512_fp16, amx_tile, amx_int8, flush_l1d, arch_capabilities |
Ecpus | 32.8 |
Scalability | 102.5 |
System Resources and Accelerators
| MEMORY | |
|---|---|
Memory Amount | 512 GiB |
Memory Amount Actual | 512 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 | 25 Gbps |
Network Speed Max | 25 Gbps |
Network Storage Speed Baseline | 20 Gbps |
Network Storage Speed Max | 20 Gbps |
Inbound Traffic | 0 GB/month |
Outbound Traffic | 0 GB/month |
IPv4 | 0 |
Server Description
A high-frequency bare-metal server combining 512 GB of DDR5 memory with advanced Intel Xeon compute for demanding in-memory workloads.
The Amazon Web Services r7iz.metal-16xl is a bare-metal, memory-optimized server featuring 64 vCPUs across 32 physical Intel Xeon 6455B cores running at 3.9 GHz. It is equipped with 512.0 GB of DDR5 memory operating at 5 GHz, though it lacks local storage and dedicated GPUs. The instance delivers top-tier performance, scoring in the top 10% for Geekbench single-core (2285.0) and multi-core (22751.0) benchmarks, alongside strong memory bandwidth of 244.66 GB/sec for uncached large blocks. With hardware acceleration for advanced vector and matrix operations (AVX-512 and AMX), it excels at high-throughput tasks. This server is highly efficient for memory-intensive enterprise workloads, including in-memory databases, Redis deployments, and CPU-based machine learning inference, where hypervisor overhead must be avoided.
Economics
Performance
Memory Bandwidth
Compression
OpenSSL
Geekbench Single-Core
Geekbench Multi-Core
Passmark CPU Scores
| BENCHMARK | SCORE |
|---|---|
Mark | 80058 |
Compression | 1184026 |
Encryption | 74229 |
Extended Instructions | 89076 |
Floating Point Maths | 237866 |
Integer Maths | 333986 |
Physics | 8086 |
Prime Numbers | 387 |
Single Threaded | 3193 |
String Sorting | 157963 |
Passmark Memory Scores
| BENCHMARK | SCORE |
|---|---|
Memory Mark | 2604 |
Database Operations | 34525 |
Memory Latency | 68 |
Memory Read Cached | 29526 |
Memory Read Uncached | 10186 |
Memory Write | 15180 |
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.2xlarge | 8 | 64 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 |
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