Is Your Ultra-Slim Phone Overheating Because of Its All-Big-Core Chip?

Motorola Edge 70 Pro and MediaTek Dimensity 8500: Fast, slim, but held back by heat

The Motorola Edge 70 Pro brings an interesting performance story thanks to the MediaTek Dimensity 8500, a chip that takes a different route from many modern smartphone processors. Instead of using a typical mix of high-performance and efficiency cores, the Dimensity 8500 relies on eight Cortex-A725 cores, all focused on performance.

On paper, that sounds powerful. One core can reach up to 3.4 GHz, three more climb to 3.2 GHz, and the remaining four run at up to 2.2 GHz. In daily use, this setup gives the Motorola Edge 70 Pro a quick and responsive feel. Apps open fast, multitasking feels smooth, browser tabs switch without much delay, and photo editing benefits from the extra processing muscle.

The difference is especially noticeable in simple moments, such as launching the camera app from standby. The Edge 70 Pro feels sharp and immediate, giving the impression of a premium phone built for speed. For everyday users, the all-big-core design can make the device feel faster than phones using a more traditional Big.Little processor layout.

The graphics side is handled by the Mali-G720 MP8 GPU, which places the phone in the upper mid-range to premium performance category. For casual gaming, the Motorola Edge 70 Pro performs well. Popular titles and lighter games run smoothly, making it a solid choice for users who play occasionally or prefer less demanding games.

However, the limits become clear with heavier 3D games. If you want stable frame rates in demanding titles, you may need to lower the graphics settings. The GPU has enough power for moderate gaming, but the phone is not able to maintain peak performance for long periods when pushed hard.

The main issue is heat. During extended gaming sessions or sustained heavy workloads, the Motorola Edge 70 Pro becomes noticeably warm. As temperatures rise, the Dimensity 8500 reduces its clock speeds to prevent overheating. This thermal throttling causes performance to drop, meaning the chip cannot fully deliver on its impressive specifications.

The slim body of the Edge 70 Pro appears to be a major factor. At 183 grams, the phone is light and sleek, which makes it comfortable to hold and easy to carry. But that thin design also leaves less room for advanced cooling. As a result, heat builds up faster, and the processor has to slow down more aggressively under pressure.

This creates a familiar smartphone trade-off: a stylish, slim design versus long-term peak performance. The Motorola Edge 70 Pro feels fast in everyday use and handles short bursts of demanding activity well, but users who game for long sessions may notice inconsistent performance over time.

Compared with some rivals, the Edge 70 Pro does not appear to manage heat as effectively under sustained load. Other phones in the same performance class may offer more stable frame rates during longer gaming sessions thanks to better thermal control. For users who care most about mobile gaming performance, this is an important point to consider before buying.

The MediaTek Dimensity 8500 is still a promising chip. Its all-big-core architecture gives the Motorola Edge 70 Pro excellent responsiveness in daily tasks, and the phone feels quick in the moments that matter most to many users. But the slim chassis limits what the processor can achieve during intense workloads.

In short, the Motorola Edge 70 Pro is a fast and attractive smartphone for everyday use, casual gaming, multitasking, browsing, and photography. But if you plan to play demanding games for long periods, the phone’s thermal throttling may hold it back. The Dimensity 8500 has plenty of potential, but in this slim design, heat prevents it from showing its full strength.