AMD’s Mobile Revival: Redefining the Notebook Business with the Ryzen 9 4900HS (A Review)
by Dr. Ian Cutress on April 9, 2020 9:00 AM ESTCPU Benchmarks
Comparison of these two CPUs is going to be interesting. Both laptops being tested excel in different ways:
| ASUS Zephyrus G14 vs Razer Blade 15 | ||
| ASUS Zephyrus G14 |
AnandTech | Razer Blade 15-inch |
| Ryzen 9 4900HS | CPU | Core i7-9750H |
| 8 / 16 | Cores / Threads | 6 / 12 |
| 1400 MHz | Idle Frequency | 1100 MHz |
| 3000 MHz | Base Frequency | 2600 MHz |
| 4300 MHz | Rated 1T Turbo | 4500 MHz |
| 4500 MHz | Measured 1T Turbo | 4200 MHz |
| 35 W | TDP Listed | 45 W |
| - | TDP Measured | 35 W |
| - | PL2 Listed | 60 W |
| - | PL2 Measured | 45 W |
| 16 GB DDR4-3200 22-22-22 1T |
DRAM | 16 GB DDR4-2666 19-19-19 2T |
The ASUS device has more cores, and by the looks of our testing, actually turbos to a higher frequency, regardless of the sticker on the box. We’ve already shown that AMD’s Zen 2 can have comparable if not better IPC than Intel’s Coffee Lake refresh, so add that to the more cores, should put every test in AMD’s camp.
What should benefit Intel here is the on-box TDP, of 45 W, compared to the AMD 35 W. When we fired up our usual program for monitoring Intel frequencies, it showed that there is a hard coded BIOS boost up to 60 W, which we thought should give some extra power. However, when the system was actually set to a workload, the peak turbo power was only 45 W, which the system was able to keep for 10-15 seconds. Then it sat back at 35 W, which makes it in line with AMD. This is odd performance from the Intel CPU, however we assume at this level that Razer has made the decisions in order to fit within the thermal profile of the Blade 15 chassis.
If Intel has a lower frequency, fewer cores, and a lower frequency, all for the same power envelope as AMD, then it looks like a slam dunk for AMD.
It is. These systems are built with productivity in mind, and even with benchmarks that are bursty like PCMark, AMD takes the win.
I also took some time to run the Civ 6 AI benchmarks, which performs 10 turns of a late game and averages the turn time. Intel won this test, but I performed it again with the power unplugged and on battery saver mode in Windows. The results were reversed:
This led me to do some more tests without power connected. I’ve separated these out into a different page, combining some CPU and some GPU data.
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Zingam - Saturday, April 11, 2020 - link
How is the triple monitor 4K support? Is triple 4K monitor setup viable? Is it smooth? Does it lag? Does it overheat? Does it make the fans howl all the time even while idling? Does it have driver issues?Can I connect this laptop or any other modern laptops to two (or more if supported) K4 external monitors for a three monitor setup and type, edit text, compile code and never ever experience overheating, fan noise, lag and stuttering? Is this APU a good work driver? This type of tests I am interested in!
And I also like to know how it compares to older CPUs not just the current. I like to know how it compares to Sandy Bridge, to Sky Lake, to Kaby Lake i7 -7700HQ, etc with and without discrete GPU (1050Ti) to know if an upgrade is worth it.
I don't care about battery life very much but I care about performance, heat and fan noise and how portable that setup is. I don't work in coffee shops but I need to carry my laptop from my office to my home and back on my back - so I care about it being light with a small power brick too.
It is very rarely that reviews provide that information - it is all about gaming and flashiness.
Zingam - Saturday, April 11, 2020 - link
@Ian it would be great if you compare these new CPUs to older for real work professional use and even with other small form factor PCs like the NUCs and the Mac Minis.Zingam - Saturday, April 11, 2020 - link
Can it run a 2-3 hour compilation or static analysis without throttling, while watching YouTube, running an emulator and browsing the web, which is just as important as not throttling while gaming or running a game in the background while debugging it in the summer season. :)Viilutaja - Saturday, April 11, 2020 - link
I have not used any of my laptops webcams ever! And i have used work laptops (Lenovo Thinkpads) for some time now. Right now i have special cover on my laptop webcam and have not opened it since installation. I have weekly meetings with collaegues and many other meetings with clients, never ever was the webcam on. Overrated part in laptops. Who has a need to do video converences, that person buys separate 4k60fps external webcam for it anyway.nils_ - Saturday, April 11, 2020 - link
I would like this very much in a mobile workstation, but I do need Thunderbolt 3 at least for my Docking Station. I can do without the dGPU.dk404 - Saturday, April 11, 2020 - link
+1 AMD for their focus on perf per watt, more design per socket plus perf per $ (value). They definitely leading the innovation for laptop, desktop and also server markets,...Now time for blue to wake up even though it's too late,...
SeanFL - Saturday, April 11, 2020 - link
Wondering how long before we see some ultra tiny desktops using the new AMD laptop APU's, similar to the NUC, Lenovo Thinkcentre, or the HP Elitedesk. The aforementioned systems are great for almost anything except video editing. The new 4000 series chips would be fantastic in a tiny desktop. Please AMD.realbabilu - Saturday, April 11, 2020 - link
Is it hackintoshable ?I wish apple also see amd as a switch too
Dodozoid - Saturday, April 11, 2020 - link
Awesome review Dr. Cutress. There are two points that interest me. First - GPU Z shows the iGPU connected via PCIe 4.0 16x. Are there any power/performance implications to that or is it simply misinterpretation of infinity fabric?And another one is regarding the on-battery performance. There is an important piece of information missing (I am aware you show part of in in battery life section)- how long does it maintain that performance?
(And maybe how much influence do various power/performance setting have on the the framerates/endurance tradeoffs?)
phoenix_rizzen - Sunday, April 12, 2020 - link
Renoir doesn't have PCIe 4. That should say PCIe 3 x8 for the GPU.