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u-6tb1.56xlarge by Amazon Web Services

u-6tb1.56xlarge is a High memory Gen1 56xlarge server offered by Amazon Web Services with 224 vCPUs, 6144 GiB of memory and 0 GB of storage. The pricing starts at 46.4039 USD per hour.
224 vCPU
6144 GiB Memory
Spare SCore
258199
(All-cores)
1439
(Single-core)

Specifications

Server Metadata

Vendor ID
aws
Name
u-6tb1.56xlarge
Description
High memory Gen1 56xlarge
Family
u-6tb1
Hw Virt
Status
active
Observed At
2026-07-30T09:14:05.906063

Availability

REGION / IDSPOTONDEMAND
Northern Virgina (US) / us-east-1
- 46.4039 USD/h
Ohio (US) / us-east-2
- 46.4039 USD/h
Oregon (US) / us-west-2
- 46.4039 USD/h
Hyderabad (IN) / ap-south-2
- 47.5827 USD/h
Mumbai (IN) / ap-south-1
- 47.8768 USD/h
Stockholm (SE) / eu-north-1
- 49.3318 USD/h
Quebec (CA) / ca-central-1
- 50.8233 USD/h
Aragón (ES) / eu-south-2
- 51.9282 USD/h
Dublin (IE) / eu-west-1
- 51.9282 USD/h
London (GB) / eu-west-2
- 54.5059 USD/h
Paris (FR) / eu-west-3
- 54.5059 USD/h
Milan (IT) / eu-south-1
- 54.5246 USD/h
Tel Aviv (IL) / il-central-1
- 54.5246 USD/h
Sydney (AU) / ap-southeast-2
- 55.6108 USD/h
Tokyo (JP) / ap-northeast-1
- 55.9796 USD/h
Seoul (KR) / ap-northeast-2
- 55.9796 USD/h
Osaka (JP) / ap-northeast-3
- 55.9796 USD/h
Singapore (SG) / ap-southeast-1
- 55.9796 USD/h
Jakarta (ID) / ap-southeast-3
- 55.9796 USD/h
Frankfurt (DE) / eu-central-1
- 55.9796 USD/h
Zurich (CH) / eu-central-2
- 61.5776 USD/h
Cape Town (ZA) / af-south-1
- 61.7945 USD/h
Sao Paulo (BR) / sa-east-1
- 74.0253 USD/h

Processor

vCPUs
224
Hypervisor
nitro
CPU Allocation
Dedicated
CPU Cores
224
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
7 MiB
CPU L1I Cache
32 KiB
CPU L1I Cache Total
7 MiB
CPU L2 Cache
1 MiB
CPU L2 Cache Total
224 MiB
CPU L3 Cache
39 MiB
CPU L3 Cache Total
308 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
179.4
Scalability
80.09

System Resources and Accelerators

MEMORY
Memory Amount
6 TB
Memory Amount Actual
6 TB
Memory Generation
DDR4
Memory Speed
2933 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
      38 Gbps
      Network Storage Speed Max
      38 Gbps
      Inbound Traffic
      0 GB/month
      Outbound Traffic
      0 GB/month
      IPv4
      0

      Server Description

      A high-density memory-optimized platform featuring six terabytes of RAM and two hundred twenty-four dedicated cores for massive enterprise workloads.

      Memory OptimizedCompute Optimized

      Amazon Web Services u-6tb1.56xlarge is a memory-optimized instance designed for massive enterprise workloads. Powered by the AWS Nitro hypervisor, it features 224 dedicated physical cores of x86_64 Intel Xeon 8176M processors running at 2.1 GHz, paired with 6144.0 GB of DDR4 memory. The instance lacks local storage and GPUs but provides a robust 100 Gbps baseline network bandwidth. Benchmark results highlight top-tier multi-core CPU and memory bandwidth performance, with stress-ng multi-core scoring 258,198.57 and Redis SET operations reaching 261.5 million operations per second. Conversely, single-core performance and PassMark memory scores are relatively weak. This hardware profile is highly efficient for massive in-memory databases, large-scale data analytics, and enterprise ERP applications requiring extreme memory density.

      Economics

      Average Price per Region

      Prices per Zone

      Lowest Prices

      Performance

      Workload Profiles

      7.59Score
      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) 28,187,332 ops/sec 1,896,415 ops/sec 14.9 50.00% 50.00% +286.00%
      Redis RPS (pipeline=16, SET) 150,515,517 ops/sec 11,539,523 ops/sec 13 20.00% 20.00% +67.00%
      PassMark Memory Mark (composite) 1,649 2,411 0.684 10.00% 10.00% -3.73%
      Memory bandwidth (read, 16 MB ~ L3) 892,330 MB/sec 107,368 MB/sec 8.31 10.00% 10.00% +23.60%
      PassMark single-thread CPU 2,126 Mops/s 2,363 Mops/s 0.9 10.00% 10.00% -1.05%

      Memory Bandwidth

      Compression

      OpenSSL

      Geekbench Single-Core

      Score: 1,052

      Geekbench Multi-Core

      Score: 9,115

      Passmark CPU Scores

      BENCHMARKSCORE
      Mark
      		 101185
      Compression
      		 3784728
      Encryption
      		 96102
      Extended Instructions
      		 274908
      Floating Point Maths
      		 528718
      Integer Maths
      		 748649
      Physics
      		 22984
      Prime Numbers
      		 1506
      Single Threaded
      		 2126
      String Sorting
      		 417155

      Passmark Memory Scores

      BENCHMARKSCORE
      Memory Mark
      		 1649
      Database Operations
      		 18388
      Memory Latency
      		 69
      Memory Read Cached
      		 21233
      Memory Read Uncached
      		 3850
      Memory Write
      		 5331

      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-6tb1.56xlarge FAQs