Samsung 850 PRO

850 PRO

256GB 2.5"

Storage Comparison

Capacity
256GB
Sequential Read
550MB/s
Sequential Write
520MB/s
Form Factor
2.5"
Interface
SATA
Protocol
AHCI
Controller
MEX
NAND
MLC
Price
$230

850 PRO850 PRO550MB/s
x1

Capacity
256GB

Sequential Read
550MB/s
Sequential Write
520MB/s
Rand Read IOPS
100K IOPS
Rand Write IOPS
90K IOPS

Form Factor
2.5"

Interface
SATA III
Protocol
AHCI

Designer
Samsung
Model
MEX
Part Number
S4LN045X01
Foundry
Samsung
Process Node
32nm
Cores
3
Clock
400MHz

DRAM Size
512MB
DRAM Type
LPDDR2
DRAM Bus Width
16-bit
Speed
1066MT/s

Manufacturer
Samsung
Codename
V-NAND V2
Process Node
40nm
Type
MLC
Die Size
95mm²
Die Capacity
86Gbit
Die Bit Density
0.9Gbit/mm²
NAND Chip Count
4
NAND Die Count
32
NAND Dies/Chip
8

AES-128
Yes
AES-256
Yes
TCG Opal 2.0
Yes
IEEE 1667
Yes
Power Loss Protection
No

Write Endurance
150TBW
MTBF
2M hours

Burst Power
3.5W
Avg Power
3.2W
Idle Power
40mW

Height
100mm (3.94")
Width
69.9mm (2.75")
Depth
6.8mm (0.27")
Weight
54g

Manufacturer
Samsung
Model
850 PRO
Description
256GB 2.5"
Release Date
Jul 1, 2014
Price
$230
Warranty
10 years