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AMD Ryzen 7 7840U Performance Benchmarks on Linux

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Re: AMD Ryzen 7 7840U Performance Benchmarks on Linux

#71

Post by rfoo »

rewmie wrote: post #33
user_named wrote: post #30

Earlier quoted context omitted.

They both already have models with these chips. Check out UM790 from Minisforum

Oh thanks for pointing this out! I completely missed that, but a quick googling led to a couple of reviews posted just a few days ago. https://www.servethehome.com/minisforum-um790-pro-review-big... Very impressive machine, and quite affordable. Bonus points for Minisforum for offering barebones versions.

Beelink also offers barebone version if you live close enough to them. I'd prefer minisforum though, according to STH and other user reviews it's way quieter and cooler, and doesn't have the troublesome magnetically attached power cable.

The only reason I didn't return my Beelink GTR7 is there was a deal and I got it for only ~$370 (barebones).

Re: AMD Ryzen 7 7840U Performance Benchmarks on Linux

#73

Post by fbdab103 »

Luker88 wrote: post #41
shmerl wrote: post #8

So when are Lenovo Thinkpads with such chips coming out?

I have a Thinkpad p16s (amd 6850U), and while it's overall a good laptop, I would not recommend thinkpad again. Aside from a hardware defect at the beginning (cpu cooler not correctly installed), they disabled S3 sleep in BIOS after an update and sleep is sill broken. Unless I boot with `processor.max_cstate=1` the graphics lock up ~once a day (even if you keep it idle and on AC), and resume is more miss than hit. It…

Am I falsely remembering the world, or was there a time when sleep really did work fairly reliably? The new sleep states seem strictly worse with multiple issues.

Re: AMD Ryzen 7 7840U Performance Benchmarks on Linux

#74

Post by fbdab103 »

hospitalJail wrote: post #52
qludes wrote: post #46

Earlier quoted context omitted.

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...)

Yet many people are happy with the Steam Deck which has a roughly equivalent GPU[0]

>The Steam Deck GPU is based on hardware that is difficult to compare to typical PC video cards. However, the GPU’s maximum throughput of around 1.6 teraflops makes it loosely equivalent in power to an Nvidia GTX 1050 or GTX 950.

[0] https://www.gamerevolution.com/guides/687871-steam-deck-gpu-...

Re: AMD Ryzen 7 7840U Performance Benchmarks on Linux

#75

Post by up6w6 »

lhl wrote: 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…

> usually can have their TDP modified in BIOS, via Ryzen Master, or third party tools like RyzenAdj (Phoenix support: https://github.com/FlyGoat/RyzenAdj/pull/256) to perform pretty closely.

I didn't know about that. Do you have citations or benchmarks?

Re: AMD Ryzen 7 7840U Performance Benchmarks on Linux

#76

Post by hospitalJail »

rfoo wrote: post #70
hospitalJail wrote: post #51

Earlier quoted context omitted.

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…

> I'm doing CAD work/GPU work. Then you have a good reason to go for a gaming laptop, because your GPU isn't one-ssh-away. Gaming laptop also don't mean "high qualify", they just mean "high spec". Unless you really have need for higher spec (for example, you have, because of CAD work and needs GPU attached to a screen), it's better to allocate money to build quality, battery life, lower weight or even keyboard feelin…

>it's better to allocate money to build quality, battery life, lower weight or even keyboard feeling.

I'm sure you are coming from something well intentioned, but those are specs as well. Not that I think they are worthwhile paying for, but these are still specs.

>Most of the software guys need "just enough" CPU power and close to zero GPU power on their laptop.

But if that was the case, I have a $100 craigslist laptop that has windows 7 on it from a long time ago. Heck, its good enough my kid can play minecraft on it, I'm sure it can SSH.

Seems like people really do want something nice, or they are okay with barebones. Somehow these low power CPUs are capturing a market that is overpaying or getting lower spec/$.

Re: AMD Ryzen 7 7840U Performance Benchmarks on Linux

#77

Post by hospitalJail »

fbdab103 wrote: post #74
hospitalJail wrote: post #52

Earlier quoted context omitted.

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...)

Yet many people are happy with the Steam Deck which has a roughly equivalent GPU[0] >The Steam Deck GPU is based on hardware that is difficult to compare to typical PC video cards. However, the GPU’s maximum throughput of around 1.6 teraflops makes it loosely equivalent in power to an Nvidia GTX 1050 or GTX 950. [0] https://www.gamerevolution.com/guides/687871-steam-deck-gpu-...

I don't think console gamers are a great way to determine demand of computing platforms. Look at the Switch.

Re: AMD Ryzen 7 7840U Performance Benchmarks on Linux

#78

Post by diffeomorphism »

hospitalJail wrote: post #32
shmerl wrote: post #8

So when are Lenovo Thinkpads with such chips coming out?

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…

Pretty obvious reasons. As long as performance is "good enough", people very much prefer thinner, lighter and better battery life. So "luggables" have the very tiny niche of "ultrabook not powerful enough" and "still low enough requirements to not need a desktop, server, ...". Not to mention that e.g. a Razer Blade 14 starts at 2800€.

Re: AMD Ryzen 7 7840U Performance Benchmarks on Linux

#79

Post by zargon »

Luker88 wrote: post #41
shmerl wrote: post #8

So when are Lenovo Thinkpads with such chips coming out?

I have a Thinkpad p16s (amd 6850U), and while it's overall a good laptop, I would not recommend thinkpad again. Aside from a hardware defect at the beginning (cpu cooler not correctly installed), they disabled S3 sleep in BIOS after an update and sleep is sill broken. Unless I boot with `processor.max_cstate=1` the graphics lock up ~once a day (even if you keep it idle and on AC), and resume is more miss than hit. It…

This has been my experience with my T14s Gen 3 (6850U). S3 sleep is no longer available, and S0 sleep fails to resume at least once a week. Even in Windows (10 and 11). I eventually got them to replace the machine with a new one, and it has the same problem. Otherwise I like the laptop. But the inability to wake from sleep cancels anything good about it and makes it not much more than a paperweight.

Re: AMD Ryzen 7 7840U Performance Benchmarks on Linux

#80

Post by rfoo »

hospitalJail wrote: post #76
rfoo wrote: post #70

Earlier quoted context omitted.

> I'm doing CAD work/GPU work. Then you have a good reason to go for a gaming laptop, because your GPU isn't one-ssh-away. Gaming laptop also don't mean "high qualify", they just mean "high spec". Unless you really have need for higher spec (for example, you have, because of CAD work and needs GPU attached to a screen), it's better to allocate money to build quality, battery life, lower weight or even keyboard feelin…

>it's better to allocate money to build quality, battery life, lower weight or even keyboard feeling. I'm sure you are coming from something well intentioned, but those are specs as well. Not that I think they are worthwhile paying for, but these are still specs. >Most of the software guys need "just enough" CPU power and close to zero GPU power on their laptop. But if that was the case, I have a $100 craigslist lapt…

> but those are specs as well

Well, sure, for weight. The other three I just can't tell until I try the thing for a week, it isn't spec if you can't tell anything after reading the spec.

> I'm sure it can SSH.

"just enough" means running a web browser, an IDE with a few background indexers for the code base I'm working on. That's a little bit too much for the $100 craigslist laptop, but yeah you are right, a $200 Chromebook works totally fine, except it had poor screen, poor keyboard and poor storage options. Want to know why I buy laptops with low power CPUs? They come with premium non-CPU parts and is both lighter and cheaper than ones with better CPUs.

Like, it's easy, anything >1.2kg is trash for me (which is equally arbitrary as your "non-low-power" constraint). Can you find me a nice <= 1.2kg laptop with so-called "non-low-power" CPUs? If so I'd be glad to try it, as it means maybe I can replace my laptop after 10 years instead of 5.

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