spark/context/memory-and-storage.md

id	title	status	source_sections	related_topics	key_equations	key_terms	images	examples	open_questions
memory-and-storage	Memory and Storage	established	Web research: Dell product page, WCCFTech, Phoronix	[gb10-superchip ai-workloads skus-and-pricing]	[memory-bandwidth storage-throughput]	[lpddr5x unified-memory nvme pcie-gen4 sed]	[]	[]	[Is the M.2 SSD user-replaceable or soldered? Exact sequential and random IOPS for the included NVMe drives Memory channel configuration (number of channels)]

Memory and Storage

The Dell Pro Max GB10 features a unified memory architecture and NVMe solid-state storage.

1. System Memory

• Capacity: 128 GB LPDDR5X
• Speed: Up to 9,400 MT/s (megatransfers per second)
• Bandwidth: 273 GB/s
• Architecture: Unified coherent memory shared between CPU and GPU via gb10-superchip

Unified Memory Model

Unlike traditional desktop systems with separate system RAM and GPU VRAM, the GB10's memory is a single shared pool. Both the Grace CPU and Blackwell GPU access the same 128 GB with full cache coherence. This means:

• No PCIe transfer bottleneck between CPU and GPU memory
• AI models up to ~200B parameters can fit in memory (with quantization)
• Frameworks see the full 128 GB as available device memory

The LPDDR5X is likely soldered to the SoC package (not user-upgradeable), consistent with the compact form factor.

2. Storage

• Interface: PCIe Gen 4 M.2 NVMe
• Options: 2 TB or 4 TB
• SED-ready: Self-Encrypting Drive support available on 4 TB option

Storage configurations map to SKU pricing — see skus-and-pricing.

Key Relationships

• Accessed by: gb10-superchip
• Determines model capacity: ai-workloads
• SKU differentiation: skus-and-pricing