ASUS Zephyrus G15 Review: AMD’s Ryzen 9 5900HS on the Prowl

ASUS’ Zephyrus lineup is one of my favorite notebook offerings. Featuring the Ryzen 5000 processors in a 14″ and 15″ form factor, I’ll be reviewing the G15 today. Packing the Ryzen 9 5900HS under the hood alongside the NVIDIA GeForce RTX 3050 Ti, this 15 incher notebook is almost identical to its 14-inch sibling. As usual, we’ll be looking at the CPU and GPU performance including content creation, gaming, and encoding/compression. We’ll be comparing the 5900HS to its successor (R9 6900HX) and Intel’s Core i7-12700H across multiple workloads.


AMD Ryzen 9 5900HS + NVIDIA RTX 3050 Ti Gaming Benchmarks

I had a small subset of gaming benchmarks to compare the Zephyrus G15, Alienware X17, and the Strix G17 but here they are:

As you can see, the Alder Lake-H processor is well ahead of AMD’s Rembrandt in gaming workloads courtesy of the Golden Cove cores and their high single-threaded performance. We’re looking at a delta of 20-25%, not considering the GPU’s thermal conditions and clock speeds.

And now, a glance at the gaming performance of the Zephyrus G15 separately. As you can see, the RTX 3050 Ti chokes in newer titles such as Assassins’ Creed: Valhalla, Metro Exodus, and Hitman 3 (even at 1080p high). While this “gaming” notebook does well in eSports games, more intensive Open-World RPGs don’t fare too well.

AMD Ryzen 9 5900HS vs 6900HX vs Intel Core i7-12700H CPU Benchmarks

Starting off with PCMark 10, the Ryzen 9 5900HS is a step up from its Zen 2 predecessors but falls short of the recently launched Rembrandt and Alder Lake parts. The 5900HS is 10% faster than the 4800H in content creation, 20% in productivity, and less than 15% in lightly threaded workloads.

AC Power

Meanwhile, the Core i7-12700H on the Alienware X17 and the Ryzen 9 6900HX on the Strix G17 both come out to be nearly 30% faster in content creation. Productivity and essentials are much closer affairs with deltas of under 10% between the Zephyrus G15 and the Alienware X17 despite a huge price gap.

On battery, the benchmarks go all bizarre. The Intel Core i7-12700H on the Alienware X17 doesn’t lose much performance when unplugged unlike the Ryzen powered systems. The Ryzen 7 4800H actually comes out ahead of the 5900HS in lightly threaded tests but falls far behind in heavily threaded workloads vis-à-vis rendering/editing. Interestingly, the Ryzen 9 6900HX lags behind both its older siblings in productivity and essentials.

Cinebench turns out as expected with the Ryzen 9 5900HX ending up somewhere in the middle. The Core i7-12700H leads the charts followed by the Ryzen 9 6900HX and the 5900HS. The additional E-cores really come into play here.

Now, over to 7-zip. The thread count really factors in here. The Alienware with its 12700K comes in first, followed shortly by the Zephyrus and its Ryzen 9 5900HS. The G14 (4900HS) is a good deal slower than its successor in this instance when it comes to decompression. Compression is a whole other story. The 14-core Alder Lake part leads supremely with a speed of over 75MB/s.

We’ll wrap up the review with browser benches: WebXPRT 3 and Speedometer 2.0.

The G15 (Ryzen 9 5900HS) and Alienware (i7-12700H) battle it out in WebXPRT with the latter edging past in the end. Speedometer favors the Core i7-12700H, leading the Ryzen 9s by nearly 30%.


The ASUS Zephyrus G15 (2021) is a solid gaming notebook but on its way out. The 2022 variant packing the 6900HX is notably faster and more efficient while the Core i7-12700H is in another league altogether. AMD’s all set to launch its next-gen Dragon Range notebooks in less than six months, boasting up to 16-cores and substantially higher single-threaded performance (+10% IPC and 5GHz+ clocks). So, unless you’re looking for a budget $1,000 gaming laptop or a workstation, I’d recommend opting for a newer variant.

Areej Syed

Processors, PC gaming, and the past. I have been writing about computer hardware for over seven years with more than 5000 published articles. Started off during engineering college and haven't stopped since. Mass Effect, Dragon Age, Divinity, Torment, Baldur's Gate and so much more... Contact: areejs12@hardwaretimes.com.
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