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Kioxia XG8 4 TB

4 TB
Capacity
IG5236
Controller
TLC
Flash
PCIe 4.0 x4
Interface
M.2 2280
Form Factor
Front
SSD Controller
Controller
The Kioxia XG8 is a solid-state drive in the M.2 2280 form factor, launched on April 26th, 2022. It is available in capacities ranging from 512 GB to 4 TB. This page reports specifications for the 4 TB variant. With the rest of the system, the Kioxia XG8 interfaces using a PCI-Express 4.0 x4 connection. The SSD controller is the IG5236 (Rainier) from InnoGrit, a DRAM cache chip is available. Kioxia has installed 112-layer TLC NAND flash on the XG8, the flash chips are made by Toshiba. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are absorbed more quickly. Thanks to support for the fast PCI-Express 4.0 interface, performance is excellent. The XG8 is rated for sequential read speeds of up to 7,000 MB/s and 5,800 MB/s write.
At its launch, the SSD was priced at 400 USD. The warranty length is set to five years, which is an excellent warranty period. The TBW rating for the Kioxia XG8 4 TB is unknown.

Solid-State-Drive

Capacity: 4 TB (4096 GB)
Variants: 512 GB 1 TB 2 TB 4 TB
Overprovisioning: 281.3 GB / 7.4 %
Production: Active
Released: Apr 26th, 2022
Price at Launch: 400 USD
Part Number: KXG80ZN84T09
Market: Consumer

Physical

Form Factor: M.2 2280 (Double-Sided)
Interface: PCIe 4.0 x4
Protocol: NVMe 1.4
Power Draw: Unknown (Idle)
Unknown (Avg)
8.1 W (Max)

Controller

Manufacturer: InnoGrit
Name: IG5236 (Rainier)
Architecture: ARM 32-bit Cortex-R5
Core Count: Quad-Core
Frequency: 667 MHz
Foundry: TSMC FinFET
Process: 12 nm
Flash Channels: 8 @ 1,200 MT/s
Chip Enables: 4
Controller Features: DRAM (enabled)

NAND Flash

Manufacturer: Toshiba
Name: BiCS5
Type: TLC
Technology: 112-layer
Speed: 1200 MT/s
Capacity: 4 chips @ 8 Tbit
Toggle: 4.0
Topology: Charge Trap
Dies per Chip: 8 dies @ 1 Tbit
Planes per Die: 2
Word Lines: 128 per NAND String
87.5% Vertical Efficiency
Read Time (tR): 56 µs
Endurance:
(up to)		 3000 P/E Cycles
(100000 in SLC Mode)
Page Size: 16 KB
Block Size: 1344 Pages

DRAM Cache

Type: DDR4
Capacity: Unknown

Performance

Sequential Read: 7,000 MB/s
Sequential Write: 5,800 MB/s
Random Read: Unknown
Random Write: Unknown
Endurance: Unknown
Warranty: 5 Years
MTBF: 1.5 Million Hours
SLC Write Cache: Yes

Features

TRIM: Yes
SMART: Yes
Power Loss Protection: No
Encryption:
  • TCG Opal
  • TCG Pyrite
RGB Lighting: No
PS5 Compatible: Yes

Notes

Drive:

This SSD uses "Kioxia's TC58NC0L1XGSD Controller which is the innogrit IG5236"
The XG8 also supports power loss notification (PLN) through a PCIe sideband signal. This allows the drive to flush its data to non-volatile media before power loss through host initialization. This is not the same as power loss protection (PLP), which uses a battery or capacitor to protect data-in-flight. However, theoretically, PLN could be used with off-module PLP (OMP) to add this functionality.

NAND Die:

Typ. Endurance: 1700 ~ 3000 P.E.C.
Typ. pSLC Endurance: 50.000 ~ 100.000 P.E.C.
Jun 1st, 2024 11:46 EDT change timezone

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