Benchmarked: This phone can outpace the Pixel 9 Pro for a fraction of the p

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Credit: Hadlee Simons / Android Authority


The new Poco *X7 Pro Iron Man edition sports a MediaTek Dimensity 8400-Ultra processor, a mid-range companion to the chip maker’s flagship Dimensity 9400. The Ultra aspect of this version is simply any software optimizations or customizations Redmi has made. The clocks and specs are otherwise the same as the standard Dimensity 8400.

MediaTek’s Dimensity 8400 is an interesting chip, aping a fair bit of its “all big core” design from the latest flagship silicon. There are no little CPU cores here, something we’ve seen in the Dimensity 9400 and Qualcomm’s flagship Snapdragon 8 Elite. In fact, it’s built entirely from eight of the latest mid-tier Arm Cortex-A725 cores, with clock speed and cache differences allowing them to scale across performance and efficiency points. One A725 has a 1MB L2 cache and 3.25GHz peak clock, three cores have a 3.0GHz clock and smaller 512kb cache, and four lowest power cores peak at 2.1GHz with a smaller 256KB L2 cache.




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