Qualcomm Snapdragon 4 Gen 2 vs Unisoc T9100 (T820) vs MediaTek Dimensity 720
Qualcomm Snapdragon 4 Gen 2
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The Snapdragon 4 Gen 2 (SM4450) is an entry-level eight-core SoC that is the successor to the Snapdragon 4 Gen 1. It integrates a total of 8 cores divided into two clusters.
The SoC continues to rely on the same core constellation as its predecessor, but with higher clock rates. In addition to two fast Cortex-A78 cores that clock at up to 2.2 GHz, the Snapdragon 4 Gen 2 has six energy-saving Cortex-A55 cores that operate at a maximum of 2 GHz.
The performance is on par with the similar but older Snapdragon 695 5G, the Mediatek MT8188J and the Mediatek Dimensity 7020. The Snapdragon 6 Gen 1 of the next faster tier, is about 29% faster in our benchmarks (Vivo V40 Se vs Honor Pad 9).
The Adreno 613 graphics card is different to the predecessor and as the name implies - and our benchmarks show, it is slower then the Adreno 619 in the SD4 Gen 1. It supports important graphics APIs such as OpenGL ES 3.2, OpenCL 2.0 and Vulkan 1.1. It is also capable of hardware-accelerated decoding of H.265 and VP9 data.
The Snapdragon 4 Gen 2 can rely on the Qualcomm X61 5G modem, which supports maximum download rates of up to 2.5 GBit/s (upload: max. 900 MBit/s). Only Wi-Fi 5 is supported for WLANs and Bluetooth 5.1 is also no longer up to date. The dual ISP works with up to 12 bit and operates with a maximum resolution of 108 MPix. Quick Charge 4 is integrated as fast charging technology.
The Snapdragon 4 Gen 2 is manufactured with a structure width of 4 nm at Samsung (compared to the 6nm TSMC Process of the SD 4 Gen 1).
Unisoc T9100 (T820)
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The Unisoc T9100 (formely Unisoc T820) is a mid range SoC for Android based smartphones and tablets. It integrates an octa-core CPU with three clusters. One fast ARM Cortex-A76 clocked at up to 2.7 GHz, three more A76 performance cores clocked at up to 2.3 GHz and a power efficiency cluster of four ARM-Cortex-A55 cores with up to 2.1 GHz. The integrated memory controller supports LPDDR4/4X with up to 2133 MHz (2x 16 Bit). The integrated ISP supports two main cameras and two subsidiary cameras (up to 108 MPix). The integrated graphics card is an ARM Mali-G57 MC4 (4 cores) at up to 850 MHz. Unisoc also specifies that the T9100 offers hardware AI acceleration with up to 8.0 TOPS peak performance of the NPU.
The chip is manufactured on the modern 6nm EUV process.
MediaTek Dimensity 720
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The Mediatek Dimensity 720 is a mid-range SoC with an integrated 5G modem. It includes four fast ARM Cortex-A76 cores and four power efficient Cortex-A55 cores, all clocked at up to 2 GHz (Octa-Core with Heterogeneous Multi-Processing). Furthermore, the chip integrates a 3 core ARM Mali-G57 MC3 GPU, a Wi-fi 5 modem, a LPDDR4x memory controller, a AI processing unit (APU) and video de- and encoding. Compared to the faster Dimensity 820, the CPU cores are lower clocked and the GPU offers less cores. Furthermore, all other features were slightly restricted (e.g. max. 12 GB RAM).
The Dimensity 720 is manufactured in the modern 7nm process and should be very power efficient.
| Model | Qualcomm Snapdragon 4 Gen 2 | Unisoc T9100 (T820) | MediaTek Dimensity 720 | ||||||||
| Codename | 2x Cortex-A78 / 6x Cortex-A55 | Cortex-A76 / A55 | Cortex-A76 / A55 | ||||||||
| Series | Qualcomm Snapdragon 4 | ||||||||||
| Series: Snapdragon 4 2x Cortex-A78 / 6x Cortex-A55 |
| ||||||||||
| Clock | 2000 - 2200 MHz | 2100 - 2700 MHz | 2000 MHz | ||||||||
| Cores / Threads | 8 / 8 2 x 2.2 GHz ARM Cortex-A78 6 x 2.0 GHz ARM Cortex-A55 | 8 / 8 | 8 / 8 | ||||||||
| Technology | 4 nm | 6 nm | 7 nm | ||||||||
| Features | X61 5G Modem, Dual-Spectra ISP, Bluetooth 5.1, Wi-Fi 5, LPDDR4x (2133 MHz) oder LPDDR5 (3200 MHz) | ISP (2 main + 2 subsidiary, 108M 9-in-1, 64M ZSL) | 4x ARM Cortex-A76 (2 GHz), 4x ARM Cortex-A55 (2 GHz), ARM Mali-G57 MC3, APU 3.0, 5G Modem, MiraVision (4K30 Video, 64MP Photo), Wi-Fi 5, Bluetooth 5.1, UFS 2.2, 12GB LPDDR4x Support | ||||||||
| Architecture | ARM | ARM | ARM | ||||||||
| Announced | |||||||||||
| Manufacturer | www.qualcomm.com | www.mediatek.com | |||||||||
| iGPU | ARM Mali-G57 MP4 ( - 850 MHz) | ARM Mali-G57 MP3 |
Benchmarks
Average Benchmarks Qualcomm Snapdragon 4 Gen 2 → 100% n=4
Average Benchmarks Unisoc T9100 (T820) → 99% n=4
Average Benchmarks MediaTek Dimensity 720 → 75% n=4
- Average benchmark values for this graphics card* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation
