Vivo X100 Pro’s Dimensity 9300 Faces Throttling Issues in Stress Tests
At the beginning of this month, MediaTek announced the launch of the Dimensity 9300, a processor that stands out with its innovative all-big-core architecture, delivering unprecedentedly high intelligence, performance, energy efficiency, and low power consumption. Recently, the reviewer Sahil Karoul, while testing the vivo X100 Pro, observed a noticeable throttling in the CPU during a stress test. This test, conducted with the Dimensity 9300, revealed a significant performance drop within two minutes.
According to a report by wccftech, this stress test could summon up to 100 threads to measure CPU performance. Sahil Karoul’s test results showed that one of the cores’ clock speeds plummeted to 0.60GHz, while the frequencies of the remaining cores dropped to 1.20GHz and 1.50GHz, respectively. Under normal conditions, the Dimensity 9300’s four Cortex-X4 super-cores and four Cortex-A720 big cores peak at 3.25GHz and 2.0GHz.
Despite being fabricated with TSMC’s third-generation 4nm process and featuring a large VC heat spreader, these are still insufficient to sustain the full power of the Dimensity 9300’s all-big-core architecture for extended periods. However, in Sahil Karoul‘s subsequent gaming tests, the vivo X100 Pro was still able to provide a relatively smooth experience.
The Dimensity 9300 is manufactured using TSMC’s third-generation 4nm process, integrating 22.7 billion transistors. Its CPU comprises an all-big-core 4+4 dual-cluster architecture, including four super-cores (Cortex-X4@3.25 GHz) and four big cores (Cortex-A720@2.0 GHz). Compared to the previous generation, its peak performance has increased by 40%, while power consumption has been reduced by 33%. The GPU, featuring a 12-core Immortalis-G720 with a second-generation hardware ray tracing engine, boasts a 46% increase in peak performance, reducing power consumption by 40% at the same performance level. Additionally, the processor integrates the seventh-generation AI processor APU 790, equipped with a hardware-level generative AI engine, doubling the integer and floating-point performance of its predecessor and reducing power consumption by 45%.
