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u-3tb1.56xlarge by Amazon Web Services

u-3tb1.56xlarge is a High memory Gen1 56xlarge server offered by Amazon Web Services with 224 vCPUs, 3072 GiB of memory and 0 GB of storage. The pricing starts at 27.3 USD per hour.
224 vCPU
3072 GiB Memory
Spare SCore
169737
(All-cores)
1442
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
u-3tb1.56xlarge
Description
High memory Gen1 56xlarge
Family
u-3tb1
Hw Virt
Status
active
Observed At
2026-07-28T00:08:50.025124

Availability

REGION / IDSPOTONDEMAND
Northern Virgina (US) / us-east-1
- 27.3 USD/h
Ohio (US) / us-east-2
- 27.3 USD/h
Oregon (US) / us-west-2
- 27.3 USD/h
Quebec (CA) / ca-central-1
- 29.9 USD/h
Dublin (IE) / eu-west-1
- 30.55 USD/h
Milan (IT) / eu-south-1
- 32.0775 USD/h
Paris (FR) / eu-west-3
- 32.0775 USD/h
Sydney (AU) / ap-southeast-2
- 32.715 USD/h
Singapore (SG) / ap-southeast-1
- 32.93 USD/h
Tokyo (JP) / ap-northeast-1
- 32.9333 USD/h
Frankfurt (DE) / eu-central-1
- 32.9335 USD/h
Hong Kong (HK) / ap-east-1
- 36.2268 USD/h
Zurich (CH) / eu-central-2
- 36.2268 USD/h
Sao Paulo (BR) / sa-east-1
- 43.55 USD/h

Processor

vCPUs
224
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
112
CPU Speed
2.1 GHz
CPU Architecture
x86_64
CPU Manufacturer
Intel
CPU Family
Xeon
CPU Model
8176M
CPU L1D Cache
32 KiB
CPU L1D Cache Total
4 MiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
4 MiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
112 MiB
CPU L3 Cache
39 MiB
CPU L3 Cache Total
154 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
Ecpus
117.7
Scalability
105.09

System Resources and Accelerators

MEMORY
Memory Amount
3 TB
Memory Amount Actual
3 TB
Memory Generation
DDR4
Memory Speed
2666 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
      50 Gbps
      Network Speed Max
      50 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

      Server Description

      A high-capacity memory-optimized platform featuring three terabytes of RAM and two hundred twenty-four virtual cores for enterprise workloads.

      Memory OptimizedGeneral Purpose

      Amazon Web Services u-3tb1.56xlarge is a memory-optimized instance running on the Nitro hypervisor, designed for massive enterprise workloads. It features 224 vCPUs across 112 physical cores powered by Intel Xeon 8176M processors running at 2.1 GHz, paired with 3072.0 GB of DDR4 RAM. The instance lacks local storage and GPU accelerators but delivers a 50 Gbps baseline network bandwidth. In benchmark evaluations, it exhibits top-tier multi-core CPU performance and exceptional memory bandwidth, alongside high-throughput Redis SET operations. However, single-core performance remains average to weak. This server is highly suited for large-scale in-memory databases, enterprise applications, and memory-intensive data processing where massive RAM capacity is required, though users must rely entirely on network-attached storage.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      4.74Score
      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) 15,917,844 ops/sec 1,896,415 ops/sec 8.39 50.00% 50.00% +190.00%
      Redis RPS (pipeline=16, SET) 88,474,895 ops/sec 11,539,523 ops/sec 7.67 20.00% 20.00% +50.30%
      PassMark Memory Mark (composite) 1,691 2,411 0.702 10.00% 10.00% -3.48%
      Memory bandwidth (read, 16 MB ~ L3) 416,683 MB/sec 107,368 MB/sec 3.88 10.00% 10.00% +14.50%
      PassMark single-thread CPU 2,035 Mops/s 2,363 Mops/s 0.861 10.00% 10.00% -1.49%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,056

      Geekbench Multi-Core

      Score: 8,528

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 82144
      Compression
      		 2343648
      Encryption
      		 71568
      Extended Instructions
      		 145560
      Floating Point Maths
      		 304698
      Integer Maths
      		 568676
      Physics
      		 11742
      Prime Numbers
      		 657
      Single Threaded
      		 2035
      String Sorting
      		 264307

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 1691
      Database Operations
      		 18905
      Memory Latency
      		 69
      Memory Read Cached
      		 21282
      Memory Read Uncached
      		 4049
      Memory Write
      		 5638

      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

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      u-3tb1.56xlarge FAQs