Raw compute power favors the IdeaPad Slim 5 across nearly every dimension. Its CPU reaches a turbo clock of 5 GHz versus 4.3 GHz on the VivoBook, and its 16-thread processor — built on a 4 nm process — is both more capable under sustained load and more power-efficient than the VivoBook's 12-thread, 7 nm chip. Smaller semiconductor nodes generally allow more performance per watt, which matters in a thin laptop where thermal headroom is limited. The GPU turbo gap is equally striking: 3000 MHz on the Lenovo against 1800 MHz on the Asus, pointing to a significantly more capable integrated graphics unit for tasks like video decoding, light creative work, and casual gaming.
Memory and storage tell an equally one-sided story. The IdeaPad ships with 32 GB of DDR5 RAM — four times the VivoBook's 8 GB of DDR4 — and DDR5 also delivers higher bandwidth, which directly benefits both the CPU and integrated GPU. Storage doubles as well, with 1 TB on the Lenovo versus 512 GB on the Asus, both over NVMe. One nuance worth flagging: the VivoBook supports up to 64 GB maximum memory versus the IdeaPad's 32 GB ceiling, so the Asus technically has more long-term upgrade headroom — though its single memory slot limits flexibility compared to the Lenovo's two slots. The IdeaPad also benefits from a PCIe 4 interface versus PCIe 3 on the VivoBook, enabling faster SSD throughput.
Across processor efficiency, thread count, GPU clock speed, RAM capacity, storage, and bus bandwidth, the Lenovo IdeaPad Slim 5 holds a decisive and comprehensive performance advantage. The VivoBook's higher memory ceiling is a theoretical bright spot, but given its single slot and base configuration of just 8 GB, it is a limited consolation for users who need capable, ready-to-use performance today.