MediaTek

MediaTek Dimensity 8400 Ultra

Recognized by Device Info
PROCESS
4nm
TSMC N4A
CPU · 8 CORES
1×Cortex-A7253.25 GHz
3×Cortex-A7253.0 GHz
4×Cortex-A7252.1 GHz
MEMORY
LPDDR5X 4266 Mhz
STORAGE
UFS 4.0
MODEL CODES · 1
MT6899a

Device Info shows this chip's live clocks, load and temperature on your phone.

Phones with the Dimensity 8400 Ultra

Phones Device Info recognizes with this chip. Ones marked full specs have been shared by their owners.

POCO X7 Pro FULL SPECSRedmi Turbo 4Xiaomi 15T

More Dimensity chips

Dimensity 84004 nm8 cores · up to 3.25 GHz · 1 phoneDimensity 8400 Max4 nm8 cores · up to 3.25 GHz · 2 phonesDimensity 8400 Ultimate4 nm8 cores · up to 3.25 GHz · 2 phonesDimensity 84504 nm8 cores · up to 3.25 GHz · 5 phonesDimensity 93004 nm8 cores · up to 3.25 GHz · 5 phonesDimensity 9000+4 nm8 cores · up to 3.2 GHz · 7 phones

All MediaTek chipsets →

Questions

What process is the Dimensity 8400 Ultra made on?

The MediaTek Dimensity 8400 Ultra is made on a 4 nm process (TSMC N4A).

How many CPU cores does the Dimensity 8400 Ultra have?

8 cores: 1× Cortex-A725 at 3.25 GHz, 3× Cortex-A725 at 3.0 GHz, 4× Cortex-A725 at 2.1 GHz.

Which phones use the Dimensity 8400 Ultra?

Phones Device Info recognizes with this chip include POCO X7 Pro, Redmi Turbo 4 and Xiaomi 15T.

What model code does the Dimensity 8400 Ultra report?

Android reports it as MT6899a. Device Info translates that code into the chip's name.