New MediaTek Chips Bring Improved Gaming, AI, 5G to Midrange Phones

(Credit: MediaTek)

Ahead of Mobile World Congress 2025, MediaTek announced three new processors that sit beneath its top-of-the-line Dimensity 9400 and second-tier Dimensity 8400. The Dimensity 7400, 7400X, and 6400 are all aimed at bringing high-end features to the midrange market

MediaTek 7400 and 7400X

The Dimensity 7400 and 7400X chipsets use a 4nm process and feature an eight-core CPU, with four high-performance Arm Cortex-A78 cores (up to 2.6GHz) and four power-efficient Cortex-A55 cores (up to 2.0GHz). MediaTek claims these chips consume 14% to 36% less power during gaming compared with unnamed competitors. The 7400 series also includes MediaTek Advanced Gaming Technology 3.0, promising smoother gameplay, better graphics, reduced lag, and power optimizations for longer gaming sessions.

MediaTek says the 7400 series’ new Neural Processing Unit (NPU) delivers 15% better performance than the Dimensity 7300. Its image signal processor (ISP) leverages AI for improved photography, including Google Ultra HDR support, enhanced contrast, and more vibrant colors. The ISP should also produce sharper images in low-light conditions.

These chips also support dual displays, making them prime candidates for foldable phones. They also feature Wi-Fi 6E and carrier aggregation for faster, more reliable download and upload speeds.

MediaTek 6400

The Dimensity 6400 chipset packs two high-performance Arm Cortex-A76 cores (up to 2.5GHz) and six power-efficient Cortex-A55 cores (up to 2.0GHz), though it uses a 6nm process. MediaTek says this chip is 19% more efficient when gaming compared with unspecified competitive chipsets.

For smoother gameplay, the 6400 includes MediaTek’s Bluetooth Wi-Fi HyperCoex Technology, which can reduce gaming latency by up to 90%. It also enhances photo quality with advanced noise reduction and supports cameras up to 108MP. On the display side, the 6400 enables True Color Accuracy, allowing screens to render more lifelike colors.

Devices powered by the Dimensity 6400 are already available, while smartphones featuring the Dimensity 7400 and 7400X are expected to hit the market in the first quarter of 2025.

About Our Expert

Iyaz Akhtar

Mobile Writer

My Experience

I've been into technology for as long as I can remember. As a PCMag mobile writer, I get to test the newest phones and tablets. Since you rely on our buying advice, I make sure you get everything a manufacturer claims, which means lots of testing. This is your phone we're talking about; it's like a part of you. I've covered technology as a career for around two decades (yikes, I had to think about that). You've seen my work at The Apple Blog, PCMag (from my first go around), This Week in Tech, and CNET. I also occasionally produce independent video projects, including This Old Nerd, a how-to series that shows practical ways to get the most from your tech.

The Technology I Use

I use a 2023 M3 MacBook Pro customized with lots of keyboard shortcuts thanks to Raycast. Pixelmator Pro is my go-to photo editing application because there is no subscription, and I'm trapped with Evernote because I've used it forever.

I'm between phones at the moment, but I use a Samsung Galaxy Z Fold 7 now, and used a Z Fold 6 before that. Considering that I like to have multiple windows open at once, the large inner screen of folding phones can show a baseball game on the top while I keep a chat app and Reddit open beneath. I do miss being able to write on the Z Fold 7's screen, though, which has me eyeing a Galaxy S25 Ultra.

My home is semi-smart, with many Google Home products that I thoroughly enjoyed in the pre-Gemini days. Be warned: smart bulbs are a gateway drug into smart home life.

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