Lenovo Yoga 9n 2-in-1 16 Review: The Coolest-Running RTX Spark Notebook

The Lenovo Yoga 9n 2-in-1 16 is a convertible with a 16-inch 2.8K 120Hz OLED and Nvidia's RTX Spark N1X (20 cores, 6144-core Blackwell GPU). The 64GB LPDDR5X/1TB config costs $3,749.99, while an 18-core, 32GB, 1TB model is $3,099.99. It holds 72 C under sustained CPU load versus 98 C on the HP OmniBook Ultra 16, trading 4-10% multi-threaded performance for the cooler tuning.

• CPU peaks at 72 C under load versus 98 C on the OmniBook Ultra 16
• Cinebench 2026 multi-core: 6,292, 10% behind HP and 22% ahead of Razer Blade 16
• Local AI: gpt-oss:20b runs at 58 tokens/s, matching the 128GB OmniBook
• QLC SSD: 6,874MB/s sequential but only 68.9K IOPS in 4K random writes