The MediaTek Dimensity 1050 and MediaTek Helio G99 Ultra are upper mid-range smartphone chipsets built on TSMC's 6 nm process. While both deliver efficient performance for everyday tasks, gaming, and multimedia, they are designed for different use cases.
The Dimensity 1050 offers integrated 5G connectivity with stronger CPU and GPU performance, whereas the Helio G99 Ultra is aimed at premium 4G smartphones with a focus on power efficiency and dependable everyday performance.
General
The MediaTek Dimensity 1050 was announced in May 2022 as a 5G mobile platform, while the MediaTek Helio G99 Ultra debuted in 2024 as an enhanced 4G chipset. Both use TSMC's 6 nm manufacturing process to improve thermal efficiency and battery life. However, the Dimensity 1050 stands out with integrated 5G support, while the Helio G99 Ultra focuses on delivering a balanced experience on 4G devices.
| Specification | MediaTek Dimensity 1050 | MediaTek Helio G99 Ultra |
| Announcement | May 2022 | 2024 |
| Segment | Upper mid-range | Upper mid-range |
| Model number | MT6879 | MT6789 Ultra |
| Brand | MediaTek | MediaTek |
| Network support | 2G, 3G, 4G, 5G | 2G, 3G, 4G |
| Manufacturing process | 6 nm | 6 nm |
| Foundry | TSMC | TSMC |
CPU
Both processors feature an octa-core CPU designed to balance performance and efficiency. The Dimensity 1050 uses two Cortex-A78 performance cores running at up to 2.5 GHz, while the Helio G99 Ultra features two Cortex-A76 performance cores clocked up to 2.2 GHz. As a result, the Dimensity 1050 delivers stronger performance for multitasking and demanding applications.
| Specification | MediaTek Dimensity 1050 | MediaTek Helio G99 Ultra |
| CPU architecture | 2 × Cortex-A78 + 6 × Cortex-A55 | 2 × Cortex-A76 + 6 × Cortex-A55 |
| Core count | 8 | 8 |
| Performance cores | 2 × Cortex-A78 @ 2.5 GHz | 2 × Cortex-A76 @ 2.2 GHz |
| Efficiency cores | 6 × Cortex-A55 @ 2.0 GHz | 6 × Cortex-A55 @ 2.0 GHz |
| Maximum frequency | 2.5 GHz | 2.2 GHz |
| Instruction set | ARMv8.2-A | ARMv8.2-A |
| Process node | 6 nm | 6 nm |
| 64-bit support | Yes | Yes |
Graphics
The Dimensity 1050 features the newer Mali-G610 MC3 GPU, while the Helio G99 Ultra uses the Mali-G57 MC2 GPU. Both support modern graphics APIs and MediaTek HyperEngine technologies, but the Dimensity 1050 offers stronger graphics performance for gaming and graphics-intensive applications.
| Specification | MediaTek Dimensity 1050 | MediaTek Helio G99 Ultra |
| GPU | Mali-G610 MC3 | Mali-G57 MC2 |
| GPU architecture | Valhall | Valhall |
| Gaming capability | FHD+ high-refresh gaming | FHD+ gaming |
| Vulkan support | Vulkan 1.3 | Vulkan 1.1 |
| OpenGL support | OpenGL ES 3.2 | OpenGL ES 3.2 |
| Hardware acceleration | Yes | Yes |
| Gaming technology | MediaTek HyperEngine 5.0 | MediaTek HyperEngine 2.0 Lite |
Memory
Both chipsets support LPDDR4X memory and UFS 2.2 storage, providing responsive multitasking and fast application loading. Their memory capabilities are largely similar, making both suitable for everyday smartphone usage.
| Specification | MediaTek Dimensity 1050 | MediaTek Helio G99 Ultra |
| Memory type | LPDDR4X | LPDDR4X |
| Maximum memory frequency | 4266 Mbps | 4266 Mbps |
| Memory bus | 2 × 16-bit | 2 × 16-bit |
| Maximum bandwidth | 17 GB/s | 17 GB/s |
| Maximum RAM support | Up to 16GB | Up to 16GB |
| ECC memory support | No | No |
Multimedia (ISP)
Both processors include the MediaTek Imagiq ISP for AI-assisted photography and multimedia processing. The Dimensity 1050 supports higher display refresh rates and 4K video capture, while the Helio G99 Ultra supports cameras up to 200MP, depending on the smartphone implementation.
| Specification | MediaTek Dimensity 1050 | MediaTek Helio G99 Ultra |
| ISP | MediaTek Imagiq | MediaTek Imagiq |
| Storage type | UFS 2.2 | UFS 2.2 |
| Maximum display resolution | 2520 × 1080 pixel | 2520 × 1080 pixel |
| Maximum refresh rate | 144Hz | 120Hz |
| Maximum camera resolution | Up to 108MP | Up to 200MP |
| Multi-camera support | Triple camera | Triple camera |
| Video capture | 4K at 30fps | 2K at 30fps |
| Video playback | 4K HDR | 2K |
| Video codecs | H.264, H.265, AV1 | H.264, H.265 |
Connectivity and network
Connectivity is the biggest difference between these two chipsets. The Dimensity 1050 features an integrated 5G modem with support for both sub-6GHz and mmWave networks, while the Helio G99 Ultra is limited to 4G LTE. Both support modern wireless standards for stable everyday connectivity.
| Specification | MediaTek Dimensity 1050 | MediaTek Helio G99 Ultra |
| Cellular modem | Integrated 5G modem | Integrated LTE modem |
| Network support | 5G, 4G | 4G |
| Maximum download speed | Up to 4.67 Gbps | Up to 600 Mbps |
| Maximum upload speed | Up to 2.5 Gbps | Up to 150 Mbps |
| Wi-Fi | Wi-Fi 6 | Wi-Fi 5 |
| Bluetooth | Bluetooth 5.2 | Bluetooth 5.2 |
| Navigation | GPS, NavIC, GLONASS, Galileo, BeiDou, QZSS | GPS, NavIC, GLONASS, Galileo, BeiDou |