Factory HPE Cray XD2000 XD675 XD670 High-Density 2U Rack Server High-Bandwidth Xeon/AMD CPU 16GB/32GB/64GB Memory SATA SSD 750W Stock Available

Factory HPE Cray XD2000 XD675 XD670 High-Density 2U Rack Server High-Bandwidth Xeon/AMD CPU 16GB/32GB/64GB

Here’s a detailed comparison table for the HPE Cray XD2000, XD675, and XD670 supercomputing systems:

Feature	HPE Cray XD2000	HPE Cray XD675	HPE Cray XD670
Form Factor	2U Node	1U Node	1U Node
Processor	AMD EPYC 9004 (Genoa)	AMD EPYC 9004 (Genoa)	Intel Xeon Scalable (Sapphire Rapids)
Max Cores/Node	192 cores	192 cores	120 cores
Memory Capacity	2TB DDR5 + 512GB HBM	1TB DDR5	1.5TB DDR5
Accelerator Support	4x AMD Instinct MI300	4x NVIDIA H100	4x Intel Ponte Vecchio
Interconnect	Slingshot-11 (400Gb/s)	Slingshot-11 (400Gb/s)	Slingshot-11 (400Gb/s)
Storage Bandwidth	60GB/s per node	45GB/s per node	50GB/s per node
Cooling	Direct Liquid Cooling (DLC)	Air/Liquid Hybrid	Air/Liquid Hybrid
Power Efficiency	38 PFLOPS/Watt	32 PFLOPS/Watt	28 PFLOPS/Watt
Max Rack Density	8 nodes (16U)	16 nodes (16U)	16 nodes (16U)
Use Case Focus	Exascale AI/ML	HPC & Scientific Computing	Hybrid HPC/AI Workloads
Special Features	Unified CPU/GPU Memory Space	NVLink Switch System	OneAPI Optimization
Starting Price	$500,000/rack	$450,000/rack	$400,000/rack

HPE Cray XD2000: The Exascale AI Powerhouse

Built for: Large-scale AI training, generative models, and unified memory workloads
Key Innovation: AMD EPYC + Instinct MI300 unified architecture

The HPE Cray XD2000 redefines AI supercomputing with its 2U dual-node design, combining 192-core EPYC 9004 CPUs and 4x AMD Instinct MI300 accelerators per node. Its breakthrough unified CPU/GPU memory space eliminates data bottlenecks for massive LLM training.

Standout Features:
✔ 8TB/s memory bandwidth – 2x faster than competitors
✔ Direct Liquid Cooling (DLC) enables 38 PFLOPS per watt efficiency
✔ Slingshot-11 interconnect with adaptive routing
✔ 60GB/s storage bandwidth per node

Perfect For:
• National AI research initiatives
• Billion-parameter generative AI
• Climate prediction modeling

Starting at: $500,000 per rack (4 nodes)

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HPE Cray XD675: The HPC Workhorse

Built for: Traditional scientific computing and CUDA-optimized workloads
Key Innovation: NVIDIA H100 + AMD EPYC balanced design

The 1U XD675 delivers 42 TFLOPS FP64 performance per node with 4x NVIDIA H100 GPUs and 192-core EPYC processors, making it ideal for physics simulations and molecular modeling.

Standout Features:
✔ NVLink Switch System for GPU-to-GPU communication
✔ Hybrid air/liquid cooling flexibility
✔ 5TB/s memory bandwidth
✔ 45GB/s storage throughput

Perfect For:
• Computational fluid dynamics
• Nuclear energy research
• Pharmaceutical discovery

Starting at: $450,000 per rack (16 nodes)

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HPE Cray XD670: The Hybrid Computing Bridge

Built for: Government and enterprise HPC/AI convergence
Key Innovation: Intel Xeon + Ponte Vecchio multi-architecture support

The XD670 combines 120-core Intel Sapphire Rapids CPUs with 4x Intel Ponte Vecchio GPUs, optimized for OneAPI workloads requiring x86 and GPU acceleration.

Standout Features:
✔ 28 TFLOPS FP64 with AI matrix extensions
✔ 4TB/s unified memory bandwidth
✔ 50GB/s storage bandwidth
✔ Air/liquid cooling options

Perfect For:
• Defense applications
• Financial risk modeling
• Cross-platform HPC development

Starting at: $400,000 per rack (16 nodes)

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Comparison Cheat Sheet

Need…	Best Choice	Key Advantage
AI/ML at exascale	XD2000	Unified CPU/GPU memory
CUDA-based HPC	XD675	NVIDIA H100 + NVLink
Intel ecosystem	XD670	OneAPI optimization
Liquid cooling mandatory	XD2000	DLC-only design
Maximum rack density	XD675/XD670	16 nodes per rack
Mixed FP64/AI workloads	XD670	Balanced CPU/GPU ratio

Common Advantages:
• Cray Programming Environment for all systems
• Slingshot-11 adaptive routing network
• HPE Performance Cluster Manager

Pro Tip: The XD2000 reduces LLM training times by 40% compared to conventional GPU clusters through its unified memory architecture.