The Mediatek Dimensity 9400 is the Taiwanese company's latest flagship SoC for premium Android phones and tablets, as of Nov 2024. It sports 1 Cortex-X925 core running at up to 3.62 GHz along with 3 Cortex-X4 cores (up to 3.25 GHz) and 4 Cortex-A720 cores (up to 2 GHz). The Immortalis-G925 MP12 serves as the integrated GPU and there is also the MediaTek 890 8th generation NPU with one "performance" core and one "flexible" core. Naturally, 5G, Wi-Fi 7, Bluetooth and satellite navigation are included, too.
Architecture and Features
The CPU is based on the ARM v9.2 architecture to a certain degree. There are no "little" cores here, much like it was with the Dimensity 9300 (4x Cortex-X4 and 4x Cortex-A720 cores). This is an approach that's vastly different to what all other ARM chipmakers do.
The manufacturer has given a boost to the level 3 and SLC caches compared to the previous-gen chip, which now have a combined capacity of 22 MB (12 MB L3 + 10 MB system cache). LPDDR5x RAM as fast as 10667 MT/s is supported; there are other cool features such as the 12-transistor L1 cache system and "up to 1.5 km" Bluetooth coverage.
Performance
The chip delivers ~9000 Geekbench 6.3 Multi points, making it a few percentage points faster than the Apple A18 Pro and about 20% faster than the Dimensity 9300.
Graphics
The ARM-developed Immortalis-G925 GPU (the 12-core variety) comes with hardware ray tracing, Accuracy Super Resolution and more. It's ready to power three-display folding phones as well as drive "WQHD+" resolution displays at up to 180 Hz, and it HW-decodes the codecs that matter most - AVC, HEVC, VP9, AV1.
The ~2700 3DMark Steel Nomad Light points that it delivers make it almost as fast as the Qualcomm Adreno 830.
Power consumption
Its peak power consumption is reportedly very high at well over 10 W. Gaming phones with advanced cooling solution are set to get much better performance (especially sustained performance) out of the SoC than regular thin models.
The Dimensity is built with TSMC's N3E process which is still state-of-the-art as of late 2024.
| Codename | Cortex-X925, X4, A720 |
| Series | Mediatek Dimensity 9000 |
| Clock Rate | <=3620 MHz |
| Level 2 Cache | 7 MB |
| Level 3 Cache | 22 MB |
| Number of Cores / Threads | 8 / 8 1 x 3.6 GHz ARM Cortex-X925 3 x 3.3 GHz ARM Cortex-X4 4 x 2.0 GHz ARM Cortex-A720 |
| Transistor Count | 29100 Million |
| Manufacturing Technology | 3 nm |
| Features | 5G (3GPP, Sub-6GHz), Wi-Fi 7, BT 6.0, UFS 4, LPDDR5X 10667 Mbps, NPU 890 |
| GPU | ARM Immortalis-G925 MC12 |
| 64 Bit | 64 Bit support |
| Architecture | ARM |
| Announcement Date | 10/09/2024 |
| Product Link (external) | www.mediatek.com |
- Average benchmark values for this graphics card
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