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x2iezn.12xlarge by Amazon Web Services

x2iezn.12xlarge is a Memory intensive [Intel processors] [Network and EBS optimized] [Extra storage or memory] [High performance] Gen2 12xlarge server offered by Amazon Web Services with 48 vCPUs, 1536 GiB of memory and 0 GB of storage. The pricing starts at 1.4949 USD per hour.
48 vCPU
1536 GiB Memory
Spare SCore
58556
(All-cores)
1871
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
x2iezn.12xlarge
Description
Memory intensive [Intel processors] [Network and EBS optimized] [Extra storage or memory] [High performance] Gen2 12xlarge
Family
x2iezn
Hw Virt
Status
active
Observed At
2026-07-23T06:51:14.209732

Availability

REGION / IDSPOTONDEMAND
Oregon (US) / us-west-2
2.434 USD/h 10.008 USD/h
Northern Virgina (US) / us-east-1
3.4834 USD/h 10.008 USD/h
Dublin (IE) / eu-west-1
3.1095 USD/h 12 USD/h
United Arab Emirates / me-central-1
5.0378 USD/h 12.306 USD/h
Tokyo (JP) / ap-northeast-1
1.997833 USD/h 14.508 USD/h

Processor

vCPUs
48
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
24
CPU Speed
4.5 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
8252C
CPU L1D Cache
32 KiB
CPU L1D Cache Total
768 KiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
768 KiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
24 MiB
CPU L3 Cache
25 MiB
CPU L3 Cache Total
50 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, pcid, sse4_1, sse4_2, x2apic, movbe, popcnt, tsc_deadline_timer, aes, xsave, avx, f16c, rdrand, hypervisor, lahf_lm, abm, 3dnowprefetch, pti, fsgsbase, tsc_adjust, bmi1, avx2, smep, bmi2, erms, invpcid, mpx, avx512f, avx512dq, rdseed, adx, smap, clflushopt, clwb, avx512cd, avx512bw, avx512vl, xsaveopt, xsavec, xgetbv1, xsaves, ida, arat, pku, ospke, avx512_vnni
Ecpus
31.3
Scalability
130.42

System Resources and Accelerators

MEMORY
Memory Amount
2 TB
Memory Amount Actual
2 TB
Memory Generation
DDR4
Memory Speed
3200 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
      100 Gbps
      Network Speed Max
      100 Gbps
      Network Storage Speed Baseline
      19 Gbps
      Network Storage Speed Max
      19 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      CPU and System Topology

      Server Description

      A high-frequency, memory-optimized instance featuring massive DDR4 capacity and fast single-core performance for memory-bound enterprise workloads.

      Memory OptimizedCompute Optimized

      Amazon Web Services x2iezn.12xlarge is a memory-optimized instance featuring 48 vCPUs and 1536.0 GB of DDR4 RAM, delivering a high memory-to-core ratio of 32.0 GB per core. Powered by an Intel Xeon 8252C processor running at 4.5 GHz on the Nitro hypervisor, it provides strong memory bandwidth, with large-block read speeds reaching 209.78 GB/sec. The instance includes a 100 Gbps baseline network bandwidth but lacks local storage and GPUs. Benchmarks indicate strong performance in memory-bound operations and software compilation, though multi-core CPU and LLM text generation tasks perform in the average to weak ranges. This profile makes the x2iezn.12xlarge highly cost-efficient for specialized, memory-intensive workloads requiring high-frequency single-core performance, such as enterprise in-memory databases, electronic design automation, and large-scale data processing.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      2.26Score
      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) 5,370,994 ops/sec 1,896,415 ops/sec 2.83 50.00% 50.00% +68.20%
      Redis RPS (pipeline=16, SET) 30,125,306 ops/sec 11,539,523 ops/sec 2.61 20.00% 20.00% +21.20%
      PassMark Memory Mark (composite) 2,902 2,411 1.2 10.00% 10.00% +1.84%
      Memory bandwidth (read, 16 MB ~ L3) 222,359 MB/sec 107,368 MB/sec 2.07 10.00% 10.00% +7.55%
      PassMark single-thread CPU 2,638 Mops/s 2,363 Mops/s 1.12 10.00% 10.00% +1.14%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,561

      Geekbench Multi-Core

      Score: 13,330

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 49125
      Compression
      		 847404
      Encryption
      		 26407
      Extended Instructions
      		 52433
      Floating Point Maths
      		 106302
      Integer Maths
      		 198783
      Physics
      		 4368
      Prime Numbers
      		 223
      Single Threaded
      		 2638
      String Sorting
      		 95997

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2902
      Database Operations
      		 19832
      Memory Latency
      		 51
      Memory Read Cached
      		 30735
      Memory Read Uncached
      		 11007
      Memory Write
      		 10267

      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
      x2iezn.2xlarge 8256 GiB0
      x2iezn.4xlarge 16512 GiB0
      x2iezn.6xlarge 24768 GiB0
      x2iezn.8xlarge 321024 GiB0
      x2iezn.metal 481536 GiB0

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      x2iezn.12xlarge FAQs