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r7iz.8xlarge by Amazon Web Services

r7iz.8xlarge is a Memory optimized [Intel processors] [High performance] Gen7 8xlarge server offered by Amazon Web Services with 32 vCPUs, 256 GiB of memory and 0 GB of storage. The pricing starts at 0.7573 USD per hour.
32 vCPU
256 GiB Memory
Spare SCore
34593
(All-cores)
2111
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r7iz.8xlarge
Description
Memory optimized [Intel processors] [High performance] Gen7 8xlarge
Family
r7iz
Hw Virt
Status
active
Observed At
2026-08-05T11:33:52.975005

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
1.037433 USD/h 2.976 USD/h
Northern Virgina (US) / us-east-1
1.316 USD/h 2.976 USD/h
Oregon (US) / us-west-2
1.332525 USD/h 2.976 USD/h
Dublin (IE) / eu-west-1
1.416967 USD/h 3.328 USD/h
Frankfurt (DE) / eu-central-1
1.207233 USD/h 3.6 USD/h
Tokyo (JP) / ap-northeast-1
0.809567 USD/h 3.632 USD/h

Processor

vCPUs
32
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
16
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
768 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
512 KiB
CPU L2 Cache
2 MiB
CPU L2 Cache Total
32 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
16.4
Scalability
102.5

System Resources and Accelerators

MEMORY
Memory Amount
256 GiB
Memory Amount Actual
256 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
      12.5 Gbps
      Network Speed Max
      12.5 Gbps
      Network Storage Speed Baseline
      10 Gbps
      Network Storage Speed Max
      10 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A memory-optimized server combining high-frequency Intel Xeon processors and DDR5 memory for demanding database and single-threaded enterprise workloads.

      Memory OptimizedCompute Optimized

      Amazon Web Services r7iz.8xlarge is a memory-optimized server instance designed for workloads requiring high-frequency compute and substantial memory capacity. Powered by the Nitro hypervisor, it features 32 vCPUs across 16 physical Intel Xeon 6455B cores operating at 3.9 GHz, paired with 256.0 GB of 5 GHz DDR5 memory. The instance lacks local storage and dedicated GPUs, relying on a 12 Gbps baseline network bandwidth. Benchmark results indicate top-tier single-core performance, outstanding image and text processing speeds, and strong large-block memory bandwidth. The CPU includes advanced instruction sets like AVX-512 and AMX, enhancing performance for cryptography and small-to-medium LLM inference. This hardware profile is highly suited for memory-intensive applications, relational databases, and enterprise workloads that demand rapid single-thread execution and high memory throughput without the need for local NVMe storage.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      2.31Score
      Precomputed compound score for Cache Intensive workloads. A weighted average (geometric mean) of benchmark scores compared to their medians: score = ∏ (x_i / m_i)^(w_i / Σw). The score of 1.0 represents a synthetic baseline server with the median performance of each component benchmark; 0.5 means roughly half the performance; and 2.0 means twice the performance of that reference profile. Component weights: 50% Redis RPS (pipeline=1, SET), 20% Redis RPS (pipeline=16, SET), 10% PassMark Memory Mark (composite), 10% Memory bandwidth (read, 16 MB ~ L3), 10% PassMark single-thread CPU. Rationale for component selection: In-memory key-value store workload, mixing direct Redis performance metrics with memory speed and latency benchmarks, and single-core CPU performance profiles.
      Component Score Weight Impact
      Raw Reference Normalized Target Actual
      Redis RPS (pipeline=1, SET) 5,973,046 ops/sec 1,910,660 ops/sec 3.13 50.00% 50.00% +76.90%
      Redis RPS (pipeline=16, SET) 25,488,883 ops/sec 11,608,287 ops/sec 2.2 20.00% 20.00% +17.10%
      PassMark Memory Mark (composite) 2,452 2,416 1.01 10.00% 10.00% +0.10%
      Memory bandwidth (read, 16 MB ~ L3) 240,703 MB/sec 107,896 MB/sec 2.23 10.00% 10.00% +8.35%
      PassMark single-thread CPU 3,164 Mops/s 2,364 Mops/s 1.34 10.00% 10.00% +2.97%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,232

      Geekbench Multi-Core

      Score: 18,076

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 49576
      Compression
      		 589230
      Encryption
      		 36527
      Extended Instructions
      		 43434
      Floating Point Maths
      		 117909
      Integer Maths
      		 165749
      Physics
      		 5913
      Prime Numbers
      		 269
      Single Threaded
      		 3164
      String Sorting
      		 81577

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2452
      Database Operations
      		 17955
      Memory Latency
      		 74
      Memory Read Cached
      		 28785
      Memory Read Uncached
      		 10109
      Memory Write
      		 14719

      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

      INSTANCEvCPUsMEMORYGPUs
      r7iz.large 216 GiB0
      r7iz.xlarge 432 GiB0
      r7iz.2xlarge 864 GiB0
      r7iz.4xlarge 16128 GiB0
      r7iz.12xlarge 48384 GiB0
      r7iz.16xlarge 64512 GiB0
      r7iz.metal-16xl 64512 GiB0

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      r7iz.8xlarge FAQs