---
id: memory-and-storage
title: "Memory and Storage"
status: established
source_sections: "Web research: Dell product page, WCCFTech, Phoronix"
related_topics: [gb10-superchip, ai-workloads, skus-and-pricing]
key_equations: [memory-bandwidth, storage-throughput]
key_terms: [lpddr5x, unified-memory, nvme, pcie-gen4, sed]
images: []
examples: []
open_questions:
  - "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|NVLink-C2C]]

### 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]]