1.16nm FinFET Manufacturing process:
Previous Helio X20 used a 20nm HPM manufacturing process while Helio P25 used a 16nm FINFET, we could have a long lecture on both technologies but in a nutshell, Helio P25 is a much smaller CPU at 16nm with a much improved FinFET technology which allows Helio P25 consume roughly 90% less power than Helio x20
2.Faster and more energy efficient RAM
Helio X20 has a max RAM size support of 4GB and it used an LPDDR3 RAM type which clocked at 800 MHz while Helio P25 has a max RAM size support of 6GB and it uses an LPDDR4X RAM clocked at 1600 Mhz. apart from the higher RAM size of LPDDR4X RAM, it will consume 50% less power than its lower generation LPDDR3 at 150% more bandwidth. Also, having a higher clock speed means the CPU will access files from the RAM faster than LPDDR3.
3.Improved IMAGIQ ISP with dual camera support.
ISP (image signal processor) is a special processor which handles anything related to Camera for pictures and video capture e.g Autofocus, exposure, HDR, white balance etc. are all handled by the ISP. Helio P25 has much-improved IMAGIQ ISP which adds support for Dual camera, crisp optical Zoom up to 10x, Real-time depth of field and more. The ISP allows tecno to add features like Super Zoom and Auto Refocus to the Phantom 8.
4.Faster GPU (Graphical processing Unit)
Both Helio P25 and X20 use the same ARM Mali T880 GPU but Helio P25’s GPU clocks higher at 1 Ghz against 780 Mhz of Helio X20.
5.Core Pilot 4.0
Both SoC’s use MediaTek's Core pilot scheduler to determine workload and select which cores to use and which cores to turn off. But Helio P25 which is a later SoC supports Core Pilot 4.0 which doesn’t just determine workloads across cores, it also measures the thermal consumption of the CPU and uses that data to balance workloads. This means Phantom 8 and Helio P25 will run cooler than its predecessor.
There we have it; Helio X20 is designed to have a more powerful CPU, a jack of one trade. But Helio P25 is designed to be a more dynamic SoC, she’s powerful enough to handle any task, she is great at multitasking thanks to its more improved RAM, She’s more battery efficient that why Phantom 8 don’t need 4000mah battery to last as long as Phantom 6+, she will handle games better and she will also stay cool-headed most of the time.]
Source | Tecno Mobile Forum