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r7iz.4xlarge by Amazon Web Services

r7iz.4xlarge is a Memory optimized [Intel processors] [High performance] Gen7 4xlarge server offered by Amazon Web Services with 16 vCPUs, 128 GiB of memory and 0 GB of storage. The pricing starts at 0.4275 USD per hour.
16 vCPU
128 GiB Memory
Spare SCore
17269
(All-cores)
2108
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
r7iz.4xlarge
Description
Memory optimized [Intel processors] [High performance] Gen7 4xlarge
Family
r7iz
Hw Virt
Status
active
Observed At
2026-08-05T23:33:29.994757

Availability

REGION / IDSPOTONDEMAND
Oregon (US) / us-west-2
0.533575 USD/h 1.488 USD/h
Ohio (US) / us-east-2
0.597533 USD/h 1.488 USD/h
Northern Virgina (US) / us-east-1
0.7062 USD/h 1.488 USD/h
Dublin (IE) / eu-west-1
0.7313 USD/h 1.664 USD/h
Frankfurt (DE) / eu-central-1
0.6772 USD/h 1.8 USD/h
Tokyo (JP) / ap-northeast-1
0.468933 USD/h 1.816 USD/h

Processor

vCPUs
16
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
8
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
384 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
256 KiB
CPU L2 Cache
2 MiB
CPU L2 Cache Total
16 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
8.2
Scalability
102.5

System Resources and Accelerators

MEMORY
Memory Amount
128 GiB
Memory Amount Actual
128 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
      6.25 Gbps
      Network Speed Max
      12.5 Gbps
      Network Storage Speed Baseline
      5 Gbps
      Network Storage Speed Max
      10 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A high-frequency, memory-optimized instance featuring DDR5 memory and advanced Intel acceleration for single-thread-intensive database and memory-cached workloads.

      Memory OptimizedCompute OptimizedGeneral Purpose

      Amazon Web Services r7iz.4xlarge is a memory-optimized instance featuring an Intel Xeon 6455B processor with 16 vCPUs and 128.0 GB of DDR5 memory. Operating at 3.9 GHz, this instance delivers top-tier single-core performance, as evidenced by its high Geekbench single-core and text processing scores. It includes advanced hardware features such as Intel AMX and AVX-512 instructions, which accelerate cryptography and vector operations. While multi-core throughput and memory bandwidth fall into the average tier, the instance provides a robust balance of high clock speed and memory density. With a baseline network bandwidth of 6 Gbps and no local storage, the r7iz.4xlarge is optimized for memory-intensive workloads, relational databases, and single-thread-heavy applications that benefit from dedicated CPU resources and high-frequency execution.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      1.49Score
      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) 3,372,158 ops/sec 1,910,660 ops/sec 1.76 50.00% 50.00% +32.70%
      Redis RPS (pipeline=16, SET) 15,949,632 ops/sec 11,608,287 ops/sec 1.37 20.00% 20.00% +6.50%
      PassMark Memory Mark (composite) 2,307 2,416 0.955 10.00% 10.00% -0.46%
      Memory bandwidth (read, 16 MB ~ L3) 143,738 MB/sec 107,896 MB/sec 1.33 10.00% 10.00% +2.89%
      PassMark single-thread CPU 3,165 Mops/s 2,364 Mops/s 1.34 10.00% 10.00% +2.97%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,246

      Geekbench Multi-Core

      Score: 13,436

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 28534
      Compression
      		 296454
      Encryption
      		 18301
      Extended Instructions
      		 23457
      Floating Point Maths
      		 58942
      Integer Maths
      		 82838
      Physics
      		 3560
      Prime Numbers
      		 170
      Single Threaded
      		 3165
      String Sorting
      		 41161

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2307
      Database Operations
      		 9190
      Memory Latency
      		 75
      Memory Read Cached
      		 27855
      Memory Read Uncached
      		 9122
      Memory Write
      		 14370

      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.8xlarge 32256 GiB0
      r7iz.12xlarge 48384 GiB0
      r7iz.16xlarge 64512 GiB0
      r7iz.metal-16xl 64512 GiB0

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      r7iz.4xlarge FAQs