Remarkably loud on the high end, surprisingly quiet on the low end.That's decent, but it puts the Duet 3 a bit behind more expensive tablets like the Samsung Galaxy Tab S8 (120.3) and the iPad Air 5 (207.2). We also ran the Duet 3 through the JetStream 2 suite of benchmarking tests to see how well it handles web apps, and the Chromebook earned a score of 63.7. However, more powerful (and more expensive) tablets like the Microsoft Surface Pro 8 (Intel i7-1185G7, 16GB RAM) and Apple iPad Air 5 (M1 chip, 8GB RAM) zoomed past the Duet 3 with scores of 5,347 and 7,151, respectively. The Microsoft Surface Go 3 (Intel Core i3-10100Y, 8GB RAM) earned a lesser score of 1,571 in the same test, for example, as did its predecessor the Surface Go 2 (Core m3-8100Y CPU, 8GB RAM) with its score of 1,617. The original Lenovo Duet Chromebook we reviewed in 2020 didn't even run Geekbench 5, but if it had it would have been outperformed by the new Duet 3. When you compare it against the performance of its predecessor or similarly-equipped tablets, the Duet 3 looks good by comparison. That's low compared to most laptops, but this is a Chromebook running on a Snapdragon SoC, not a pricey ultraportable packing the latest Intel or AMD CPUs. When we put it to the test in the Geekbench 5.4 multi-core CPU benchmark, the Duet 3 earned a score of 1,732. I was able to open 15 tabs in Chrome and stream music, watch videos on the Amazon Prime Video app, and play a game downloaded from the Google Play Store with no meaningful slowdown. In my time with the Duet 3 I found it to be pretty snappy for a Chromebook, with almost no slowdown when launching and switching between apps.

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