1 HN user recommended this news clip1 month2020score 1
Years with an HN recommendation, 2007–2026
HN people cite it as a review showing Zen 2's efficiency and performance advantage over Intel in laptops.
Linus Tech Tips reviews AMD's Ryzen 9 4900HS mobile CPU in the ASUS ROG Zephyrus G14 laptop, calling it a landmark product. It highlights strong performance against Intel along with good efficiency and battery life.
“This LTT review captures the massive advantage Zen 2 has in efficiency” (HN, 2020)
1 recommendations · 4 citations · News · news from the time
> Games are traditionally single threaded and hard to parallelize. On my 3900X I've seen even single player action titles utilize 16+ threads with overall CPU utilization reaching peaks of 80-90 %. Yes, it maybe be hard to parallelize game engines, but all major ones heavily use multiple cores. A bunch of years ago (4-5) people would recommend an i3-K dual core for gaming, because you could overclock it to 5+ GHz on air. That was sufficient for many titles back then. (And these i3s would sometimes give you higher FPS compared to the more expensive quad-core options). But a CPU like that is far too weak for newer titles. > You still can't beat intel at the high end. Both in terms of heat and performance. If you have a task that doesn't parallelize well, you can't beat intel. In terms of heat, that is, performance per Watt, Intel's high end is quite a bit worse than AMD's. It is true however that you can get slightly higher single-threaded performance out of Intel's highest-end CPUs, but not because they are more efficient (- AMD is better both perf/W and IPC-wise), but just by raw, unadulterated clock speed, pushing them to 5+ GHz. And that causes them to burn a lot of power. Zen 2 has consistently ~10-15 % higher performance clock-for-clock compared to Intel's best while achieving approximately 60-80 % higher perf/W. This LTT review captures the massive advantage Zen 2 has in efficiency: [this video]
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