Storage Comparison

Summary

Capacity 256GB

Sequential Read 2.2GB/s

Sequential Write 1.3GB/s

Form Factor Soldered

Interface PCIe

Protocol NVMe

Controller Polaris

NAND 3D MLC (48L)

Highlights

Sequential Read

Sequential Read Sequential Write Capacity

L2,200MB/s

x1

Capacity

Capacity 256GB

Speed

Sequential Read 2.2GB/s

Sequential Write 1.3GB/s

Form Factor

Form Factor Soldered

Interface

Interface PCIe 3.0 x4

Protocol NVMe 1.2

Controller

Designer Samsung

Model Polaris

Part Number S4LP077X01

Foundry Samsung

Process Node 28nm

Cores 5

DRAM

DRAM Size 512MB

DRAM Type LPDDR3

DRAM Bus Width 32-bit

Speed 3733MT/s

NAND

Manufacturer Samsung

Codename V-NAND V3

Type 3D MLC (48L)

Layers 48L

Die Size 100mm²

Die Capacity 256Gbit

Die Bit Density 2.57Gbit/mm²

NAND Chip Count 4

NAND Die Count 8

NAND Dies/Chip 2

Info

Manufacturer Apple

Model L

Description 256GB Soldered

Part Number SM0256L

Images