Under the hood, these two phones diverge meaningfully. The T4 Lite 5G runs on the MediaTek Dimensity 6300, built on a 6 nm process, while the T4x 5G steps up to the MediaTek Dimensity 7300 on a more efficient 4 nm node. The smaller fabrication process is not just a spec sheet detail — it translates directly to better power efficiency and thermal management, meaning the T4x can sustain higher performance for longer without excessive heat buildup. The Geekbench 6 scores make the gap concrete: the T4x leads in single-core performance (1031 vs 782) and pulls even further ahead in multi-core (2827 vs 2012), a roughly 40% advantage that will be felt in demanding tasks like gaming, video processing, and heavy multitasking.
The memory architecture tells a similar story. Both devices ship with 8GB of RAM and 256GB of storage, but the T4x uses DDR5 RAM running at 6400 MHz, versus the T4 Lite's DDR4 at 2133 MHz — a threefold difference in memory bandwidth that helps the faster chipset feed data quickly and keeps app switching snappy. The T4x also supports a higher maximum memory ceiling (16GB vs 12GB), relevant for users who rely on RAM expansion features. On the GPU side, the T4x's Mali G615 runs at a faster clock speed (1047 MHz vs 950 MHz), giving it a modest but real graphics edge for gaming and rendering.
The Vivo T4x 5G wins this category decisively. Its newer chipset, faster memory, and superior benchmark results combine into a performance profile that is a clear tier above the T4 Lite — not a marginal upgrade, but a meaningful one for users who prioritize sustained day-to-day responsiveness.