The performance gap between these two devices is substantial and permeates every layer of the hardware. The City 100's Unisoc T615, built on a modern 12 nm process, is a generational leap over the Zeno 20's Unisoc T7100, which uses an older 28 nm node. Smaller process nodes are more power-efficient and allow higher sustained performance — in practical terms, the City 100 will run cooler, throttle less under load, and stretch battery life further doing the same tasks. The Geekbench 6 scores cement this: the City 100 posts 437 single-core and 1461 multi-core, versus a notably weaker 164 single-core and 725 multi-core on the Zeno 20. Single-core performance is especially critical for everyday responsiveness — app launches, scrolling, and UI animations — and the City 100 is more than twice as fast on that metric.
The memory and storage advantage follows the same pattern. The City 100 ships with 8 GB of RAM (expandable to 12 GB) and 256 GB of storage, while the Zeno 20 offers just 4 GB of RAM and 128 GB of storage. Less RAM means the Zeno 20 will struggle to keep multiple apps in the background, leading to more frequent reloads — a noticeable friction point in daily use. On the GPU side, the City 100's Mali G57 at 850 MHz with 2 execution units outpaces the Zeno 20's single-unit PowerVR GE8322 at 550 MHz, translating to smoother graphics in games and video rendering.
The Itel City 100 wins this category decisively. Across CPU performance, GPU capability, RAM, and storage, it outclasses the Zeno 20 at every turn. The Zeno 20's marginally lower TDP offers no meaningful compensation for its significantly weaker overall hardware profile. Users who care about responsive, future-proof performance have a clear choice here.