Live data from Hacker News

AMD Ryzen 7 7840U Performance Benchmarks on Linux

phoronix.com

51–60 of 96 posts

Re: AMD Ryzen 7 7840U Performance Benchmarks on Linux

#51

Earlier quoted context omitted.

What is a better word for a laptop with good specs? "High end laptops" are usually garbage when I search for them. 19" monitor and a 3060 for $2000, RGB keyboard 512GB ram, 16gb Ram. I just use the word gaming laptop because you can get high quality stuff for under $1000, or you can get ultra high quality for $3000 like a 4090. I don't actually play games. Its a shortcut word.

Sure, i get that. I still don't think I'd want to travel or commute with that kind of laptop. That's the kind of machine I'd want docked at my desk, connected to multiple displays and all other peripherals. At that power efficiency and battery life are of little concern.

I kind of know what you mean. My bro had a gaming laptop that was gigantic and the fans sounded like a jet engine.

I snagged an Asus the other day with a 3060 + 16gb ram for $800 and its small/light weight. I don't think I've heard the fans on it, but I have kids hahaha

If battery life is a concern, how long do you need to remain on but not plugged in? I've used it in enough 2 hr meetings and I don't think I broke 50% battery. I'm doing CAD work/GPU work.

Re: AMD Ryzen 7 7840U Performance Benchmarks on Linux

#52
post #46

Earlier quoted context omitted.

Can anyone explain why so many people want this? If I am running a beefy single threaded or multi program with CPU, I want the best, not some low power device. Gaming laptop.(Or whatever we want to call it) If I'm running consumer/enterprise software, I likely want a beefy GPU. Gaming laptop.(Or whatever we want to call it) If I'm taking a 7 hour bus ride in a bus without a 120V outlet, I want this. If I'm taking a 6…

It doesn't replace a beefy GPU but the 780m is more than enough for many workloads and playing older games. It's maybe roughly comparable to having desktop GTX 1050. There's a decent chance that ryzen models with 740m or 760m that we'll probably see in cheaper ThinkPads won't be half bad either compared to the Intel alternative.

Eh 1050 is really bad in 2023.

I wouldn't even get another 1650 even though it can do the job(CAD, AI Art, etc...)

Re: AMD Ryzen 7 7840U Performance Benchmarks on Linux

#53

Earlier quoted context omitted.

The initial AMD announcement included some comparisons, for example "AMD also included battery life benchmarks comparing the Ryzen 7 Pro 7840U against two Core i7 models and the Apple M2 Pro, with the former both having a battery capacity of 54 Wh, while the latter had a 69.6 Wh battery. Meanwhile, the Ryzen 7 Pro 7840U system was equipped with a 51.3 Wh battery yet managed to deliver longer battery life than all thr…

"AMD says AMD is the best." Wow, I'm so surprised. I also think I am the best(/s). I still find this compute per watt thing such a silly thing for any company to care about. Until Apple did it, it was not on anyone's minds. Once Apple did it, they dumped a bunch of money into marketing a metric that no one cared about; and now people pretend to care about it. Not to mention this obsession with CPU that I just cannot…

Apple started talking about Performance per Watt in 2005, 18 years ago. It was their stated reason for switching from PowerPC to Intel.

Re: AMD Ryzen 7 7840U Performance Benchmarks on Linux

#54
post #8

So when are Lenovo Thinkpads with such chips coming out?

I've had a terrible time with my Z16 AMD Gen1 (Ryzen 6850H). One broken BIOS update after another, and just when things started to stabilize they pushed out one that broke external USB-C displays and hubs, and the update went out in a way where it could not be rolled back and it's been like this now for over a month without a fix.

Before that they had BIOS versions that under-ran the fan so it overheated, versions that overran the fan constantly, and power management and wake-from-lid-closed under Linux has in general been a nightmare all along.

Lenovo's reputation for reliability has been heavily tarnished by this, but in particular I think going Ryzen with them is a real roll of the dice.

Re: AMD Ryzen 7 7840U Performance Benchmarks on Linux

#55
post #15
post #6

Earlier quoted context omitted.

Idk if this is too OT but I wonder how it would fare with an ambient temp of 37°C (forecast for today).

Don’t start this, AC hasn’t been invented in Germany yet.

it has, you just have to call it a "heat pump"

Re: AMD Ryzen 7 7840U Performance Benchmarks on Linux

#56
post #16

For those interested in seeing more about how these new 7040 APUs (Zen4 + RDNA3 "Phoenix") perform, Notebookcheck just reviewed a 7840HS (65W max TDP I believe) minipc: https://www.notebookcheck.net/AMD-Ryzen-7-7840HS-performance... Although not Linux specific, the nice thing about Notebookcheck is they have a nice database of other CPUs/devices that you can easily compare against. ServeTheHome has been reviewing a l…

Notebookcheck is a saint. I have never seen such thorough, technical reviews of laptops anywhere else, much less so many of them.

I really hope they stay alive in this video review age.

Re: AMD Ryzen 7 7840U Performance Benchmarks on Linux

#60
post #15
post #6

Earlier quoted context omitted.

Idk if this is too OT but I wonder how it would fare with an ambient temp of 37°C (forecast for today).

Don’t start this, AC hasn’t been invented in Germany yet.

Ähm. Nein. That is a rumour. https://www.lg.com/de/klimaanlagen/lg-ac24bk or https://www.lg.com/de/business/klimaanlagen

You just need to be able to afford it, and have the ok to install from the landlord, HOA, whatever, or actually OWN the place. Imagine...

Post reply on HN