MediaTek Dimensity 7100 vs Helio G99: How Much Faster is the New 5G Chip

MediaTek Dimensity 7100 and Helio G99 are produced using a 6nm technology process and both feature eight processor cores, but they belong to different performance tiers. The Dimensity 7100 has four Cortex-A78 cores, while the Helio G99 uses only two older Cortex-A76 cores. In Geekbench 6, the new chip outperforms its competitor by 36% in single-core and 48% in multi-core tests, while the difference in AnTuTu 10 reaches 41%.

5G support is just one of its advantages. A more critical distinction lies in the processor capabilities: the Dimensity 7100 handles heavy applications, multitasking, and gaming better. The Helio G99 remains justified only in significantly cheaper smartphones.

Key Differences

The key difference is the CPU configuration. Dimensity 7100 uses a 4+4 scheme, while Helio G99 uses a 2+6. The additional performance cores are especially important when installing applications, processing photos, extracting files, and running multiple background processes.

Benchmarks

In single-core Geekbench 6, Dimensity 7100 outperforms Helio G99 by 36%. Cortex-A78 is not only newer than Cortex-A76 but also operates at a higher frequency-up to 2.4 GHz versus 2.2 GHz. This speeds up the launch of heavy applications, web page processing, and other short operations.

In multi-core mode, the gap increases to 48%. Here, the advantage comes from having four performance cores. Helio G99 has only two, so it quickly utilizes the less powerful Cortex-A55 under parallel load.

AnTuTu 10 shows a 41% advantage. This test takes into account the CPU, graphics, memory, and overall system speed, so the result reflects the difference between the platforms as a whole. The final score of a specific smartphone depends on the memory type, storage, temperature, and firmware settings.

Results of Specific Smartphones

Public results from Geekbench 6 for several devices can be used for comparison.

The two smartphones on Dimensity 7100 average 986 points in the single-core test and 2918 points in the multi-core test. Models with Helio G99 have average results of 720 and 1888 points, respectively.

In this sample, Dimensity 7100 is approximately 37% faster under single-core load and 55% faster when using all cores. The smartphones differ in firmware, memory size, and cooling, but the gap corresponds to the hardware differences between the chips.

Everyday Use and Gaming

In messaging apps, video players, and simple browsing, both processors deliver acceptable speeds. The difference becomes more pronounced when installing and updating applications, switching between demanding programs, processing photos, and working in browsers with many tabs.

Dimensity 7100 processes parallel tasks faster thanks to its four Cortex-A78 cores. A larger amount of RAM helps keep more applications open but does not compensate for Helio G99's lack of processing power.

In graphics, Dimensity 7100 uses Mali-G610 MC2, while Helio G99 uses Mali-G57 MC2. Both configurations feature two graphics cores, so a twofold increase in frame rate is not to be expected. Dimensity’s advantage stems from its newer GPU architecture, strong CPU, and support for LPDDR5.

In less demanding games, the difference may be small. In heavy projects, Helio G99 often requires lowering graphics quality or rendering resolution. Dimensity 7100 also does not belong to the gaming high-end segment, but its medium settings are more realistic.

The main limitation of Helio G99 remains its graphics. Additional RAM will not increase the power of Mali-G57 MC2 or eliminate frame drops in scenes where the smartphone hits a GPU bottleneck.

5G, Memory, and Storage

Helio G99 is limited to 4G LTE networks, while Dimensity 7100 supports 5G SA and NSA with download speeds up to 3.3 Gbps. Where LTE performs well, the lack of 5G may not always be critical, but when purchasing a smartphone for several years, this shortcoming should be taken into account.

Dimensity 7100 also supports LPDDR5, UFS 3.1, Wi-Fi 6, and Bluetooth 5.4. However, these are capabilities of the platform, not mandatory specifications for every device. A manufacturer may choose to equip it with LPDDR4X, UFS 2.2 storage, or a simpler wireless module.

Therefore, the name of the processor does not replace the need to check the other specifications of the smartphone. The type of memory and storage can significantly impact the speed of application launches and updates.

What to Choose

Prefer Dimensity 7100 if:

• the smartphone is purchased for several years;
• multitasking and application speed are important;
• demanding games are planned;
• 5G support is needed;
• the price difference with the Helio G99 model is small.

Helio G99 makes sense if:

• the smartphone is significantly cheaper;
• 5G is not required;
• primary tasks are messaging, video, and browsing;
• the screen, camera, or battery of a specific model are more important than speed;
• heavy gaming is not part of the primary scenarios.

Comparing should not only focus on processors but also consider the entire smartphones. A Helio G99 model with a quality screen, good camera, and low price may prove to be more beneficial than a poorly equipped device on Dimensity 7100. Given similar other specifications, the advantage of the new chip is unequivocal.

Conclusion

MediaTek Dimensity 7100 outperforms Helio G99 by 36% in single-core Geekbench 6, by 48% in multi-core tests, and by 41% in AnTuTu 10. The main difference is due to having four Cortex-A78 cores instead of two Cortex-A76.

Helio G99 remains a viable platform for inexpensive 4G smartphones, but its choice should be justified by price. At comparable costs, models with Dimensity 7100 are preferable.