x8i.16xlarge by Amazon Web Services

x8i.16xlarge is a Memory intensive [Intel processors] Gen8 16xlarge server offered by Amazon Web Services with 64 vCPUs, 1024 GiB of memory and 0 GB of storage. The pricing starts at 0.7986 USD per hour.
64 vCPU
1024 GiB Memory
Spare SCore
69,208
(All-cores)
2,121
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
x8i.16xlarge
Description
Memory intensive [Intel processors] Gen8 16xlarge
Family
x8i
Hw Virt
Status
active
Observed At
2026-10-29T10:04:49.327694

Availability

REGION / IDSPOTONDEMAND
Ohio (US) / us-east-2
1.6583 USD/h 7.0026 USD/h
Oregon (US) / us-west-2
1.683425 USD/h 7.0026 USD/h
Northern Virgina (US) / us-east-1
1.94374 USD/h 7.0026 USD/h
Mumbai (IN) / ap-south-1
1.8183 USD/h 7.225 USD/h
Stockholm (SE) / eu-north-1
0.7986 USD/h 7.9859 USD/h
Aragón (ES) / eu-south-2
1.73305 USD/h 8.4032 USD/h
Dublin (IE) / eu-west-1
2.098567 USD/h 8.4032 USD/h
Milan (IT) / eu-south-1
0.882 USD/h 8.8205 USD/h
Paris (FR) / eu-west-3
1.422767 USD/h 8.823 USD/h
(MY) / ap-southeast-5
0.9139 USD/h 9.1386 USD/h
Frankfurt (DE) / eu-central-1
1.8657 USD/h 9.8038 USD/h
Tokyo (JP) / ap-northeast-1
1.0154 USD/h 10.1539 USD/h
Seoul (KR) / ap-northeast-2
1.0154 USD/h 10.1539 USD/h
Sydney (AU) / ap-southeast-2
1.979967 USD/h 10.1539 USD/h
Singapore (SG) / ap-southeast-1
3.6912 USD/h 10.1539 USD/h
Sao Paulo (BR) / sa-east-1
1.3655 USD/h 13.6554 USD/h

Processor

vCPUs
64
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
32
CPU Speed
3.9 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
6975P-C
CPU L1D Cache
48 KiB
CPU L1D Cache Total
2 MiB
CPU L1I Cache
64 KiB
CPU L1I Cache Total
2 MiB
CPU L2 Cache
2 MiB
CPU L2 Cache Total
64 MiB
CPU L3 Cache
480 MiB
CPU L3 Cache Total
480 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, cpuid_fault, 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, bus_lock_detect, cldemote, movdiri, movdir64b, md_clear, serialize, amx_bf16, avx512_fp16, amx_tile, amx_int8, flush_l1d, arch_capabilities
Ecpus
32.6
Scalability
50.94

System Resources and Accelerators

MEMORY
Memory Amount
1 TB
Memory Amount Actual
1 TB
Memory Generation
DDR5
Memory Speed
7200 Mhz
ACCELERATORS
Accelerator Count
0
Accelerator Memory Min
0 MiB
Accelerator Memory Total
0 MiB
Accelerators
    STORAGE
    Storage Size
    0 GB
    Storages
      NETWORK
      Network Speed Baseline
      30 Gbps
      Network Speed Max
      30 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

      CPU and System Topology

      Server Description

      A high-density DDR5 memory instance with dedicated Intel Xeon processors and AMX instructions for memory-intensive enterprise workloads.

      Memory OptimizedCompute Optimized

      Amazon Web Services x8i.16xlarge is a memory-optimized instance featuring 64 dedicated vCPUs powered by an Intel Xeon 6975P-C processor running at 3.9 GHz. Built on the Nitro hypervisor, it includes 1024.0 GB of high-speed DDR5 memory at 7 GHz, providing 16.0 GB of RAM per core. The server lacks local storage and GPUs but features a 30 Gbps baseline network speed. Performance benchmarks highlight top-tier multi-core capabilities, particularly in software compilation, image processing, and static web serving. It also excels at CPU-based LLM prompt processing due to built-in Intel AMX support. The instance is highly cost-efficient for memory-heavy workloads that do not require local NVMe storage or discrete GPUs, making it an excellent fit for large-scale databases, Redis deployments, and memory-intensive enterprise applications.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      4.4Score
      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) 13,899,126 ops/sec 1,919,289 ops/sec 7.4 50.00% 50.00% +170.00%
      Redis RPS (pipeline=16, SET) 78,511,690 ops/sec 11,728,058 ops/sec 6.6 20.00% 20.00% +46.00%
      PassMark Memory Mark (composite) 2,584 2,416 1.1 10.00% 10.00% +0.96%
      Memory bandwidth (read, 16 MB ~ L3) 207,340 MB/sec 108,466 MB/sec 1.9 10.00% 10.00% +6.60%
      PassMark single-thread CPU 3,274 Mops/s 2,365 Mops/s 1.4 10.00% 10.00% +3.40%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 2,176

      Geekbench Multi-Core

      Score: 20,822

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 82,770
      Compression
      		 1,276,599
      Encryption
      		 72,596
      Extended Instructions
      		 88,432
      Floating Point Maths
      		 239,082
      Integer Maths
      		 330,211
      Physics
      		 8,806
      Prime Numbers
      		 522
      Single Threaded
      		 3,274
      String Sorting
      		 163,415

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 2,584
      Database Operations
      		 27,755
      Memory Latency
      		 71
      Memory Read Cached
      		 28,901
      Memory Read Uncached
      		 14,243
      Memory Write
      		 10,965

      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

      INSTANCEvCPUsMEMORYAccelerators
      x8i.large 232 GiB0
      x8i.xlarge 464 GiB0
      x8i.2xlarge 8128 GiB0
      x8i.4xlarge 16256 GiB0
      x8i.8xlarge 32512 GiB0
      x8i.12xlarge 48768 GiB0
      x8i.24xlarge 961536 GiB0

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      x8i.16xlarge FAQs