Mediatek Helio G99 vs MediaTek Dimensity 1080 vs MediaTek Dimensity 8200-Ultra

Mediatek Helio G99

The Mediatek Helio G99 is a mainstream ARM SoC for smartphones (mainly Android based) that was introduced in 2022. It is manufactured in a 6 nm FinFET process and is equipped with 2x big ARM Cortex-A76 cores with up to 2.2 GHz and 6x small and power efficient ARM Cortex-A55 cores (max. 2 GHz) in two clusters (bigLITTLE). The chip integrates an ARM Mali-G57 MC2 (two cores). Compared to the older Helio G96, the G99 is manufactured in the more recent 6nm process and clocks higher.

Furthermore, the integrated LTE / 4G modem supports Cat-13 download speeds. Wi-Fi 5 is also integrated (a/b/g/n/ac). The memory controller supportsLPDDR4x with up to 4,266 Mbps.

MediaTek Dimensity 1080

The Mediatek Dimensity 1080 is a mid-range ARM SoC (system-on-a-chip) that can be used in both smartphones and tablets (mainly Android). The SoC integrates two ARM Cortex-A78 cores with up to 2.6 GHz for demanding tasks and six power-saving ARM Cortex-A55 cores with clock rates of up to 2 GHz.

The chip has an integrated sub-6 GHz 5G modem including dual-SIM support that can reach a maximum download speed of up to 2.77 Gbit/s. Wi-Fi 6 (802.11ax) is supported as well as Bluetooth 5.2.;

The memory controller copes with LPDDR4x or LPDDR5 working memory as well as UFS 3.1 mass storage. As an integrated graphics card, the SoC uses the ARM Mali-G68 MC4, which supports displays with 120 Hz as well as HDR10+ at a maximum resolution of 2,520 x 1,440 pixels.

The differences to the Dimensity 920 are minor, only the slightly higher maximum clock and a support for higher-resolution cameras can be found.

The MediaTek Dimensity 1080 is still manufactured in 6 nm.

MediaTek Dimensity 8200-Ultra

The MediaTek Dimensity 8200-Ultra is a upper mid-range ARM-based SoC (system-on-a-chip) that is manufactured using the modern 4 nm process. It was specially designed for use in Android smartphones and is in the upper class in terms of performance. It supports all current mobile communication standards, including 5G SA. 

The CPU works with a total of eight cores, which are divided into two clusters. In the first cluster, an ARM Cortex-A78 power core clocked at 3.1 GHz is joined by three further ARM Cortex-A78 power cores clocked at 3 GHz. In the second cluster, four ARM Cortex-A55 power cores operate at 2.0 GHz. LPDDR5 RAM can be used as RAM and UFS 3.1 is supported as internal memory. 

In terms of connectivity, dual 5G with a theoretical peak download speed of up to 4.7 GBit/s is available, as well as WiFi 6E and Bluetooth 5.3.

The Mediatek Dimensity 8200-Ultra is a variant of the otherwise identical Mediatek Dimensity 8200 that has been specially customised for Xiaomi and features improvements to the camera ISP. An Imagiq 785 image processor is responsible for processing the camera data. Video recordings are supported with up to 4K at 60 fps. The CPU part of the older Dimensity 8100 is very similar and offers the same CPU and GPU cores.

The integrated ARM Mali-G610 MC6 graphics unit can power displays with a resolution of up to 2,960 x 1,440 pixels (WQHD+) and a refresh rate of up to 120 Hz. With Full HD+, even up to 180 Hz is possible.