3 ms·

But still at 350W TDP. I want gobs of ECC memory and PCIe lanes without feeling like I'm driving a hummer every time I power on my desktop.

jauntywundrkind 3y ago
Is it? I doubt that. Also, I think the key point people really miss is that with modern cores you can just say what you want! I really really enjoyed this article where they scaled a AMD 7840HS laptop core from 51W down to 5W. There looks like perfectly acceptable single core performance even down at 10-15W. https://news.ycombinator.com/item?id=37923741 https://news.ycombinator.com/item?id=37923741 This mirrors what Matthew Dillon of DragonflyBSD was finding 6 years ago with a 2700x. You can just drop the cores target power down from 160W to 85W and it still runs amazingly fast and the efficiency numbers go way way up. https://lists.dragonflybsd.org/pipermail/users/2018-September/357883.html https://lists.dragonflybsd.org/pipermail/users/2018-Septembe... People keep being afraid of high power cores & they just don't know any better. The situation has just gotten better and better and easier and easier to dial in an arbitrary desired power level, and you get it. At some bit to multicore performance, but efficiency usually goes way way up.
- craftkiller 3y ago
  > Is it? I doubt that. The 350W tdp? Its in the article. There's a table of each pro sku and their TDP.
- craftkiller 3y ago
  Its too late for me to edit my reply so I'm adding another: Just wanted to say that you had a good point about modern cores being configurable (for example, on my laptop I set the EPP 100% towards energy efficiency by default and then when I know I'm going to be running some serious long-running computations I'll run a script to make the EPP favor performance). I'll have to wait for these to be released to see how low their power usage can go considering they might have a high floor since I doubt these were designed for low power usage, but this has at least revived my consideration of these CPUs. That being said, there is one other thing to consider: motherboards. I have a first generation threadripper in my desktop and through a series of dumb moves with very heavy graphics cards, I have broken a number of the PCIe slots. I looked into getting a replacement motherboard since I figured they'd be cheap by now since they're so out of date, but first generation threadripper motherboards are like $700-$1000, while the people who bought AM4 socketed CPUs got multiple generations of CPU upgrades AND their motherboards now cost $100-$200. There are some undeniable advantages to being on their more popular consumer lines instead of the prosumer threadripper.

jauntywundrkind 3y ago

Is it? I doubt that. Also, I think the key point people really miss is that with modern cores you can just say what you want! I really really enjoyed this article where they scaled a AMD 7840HS laptop core from 51W down to 5W. There looks like perfectly acceptable single core performance even down at 10-15W. https://news.ycombinator.com/item?id=37923741 https://news.ycombinator.com/item?id=37923741 This mirrors what Matthew Dillon of DragonflyBSD was finding 6 years ago with a 2700x. You can just drop the cores target power down from 160W to 85W and it still runs amazingly fast and the efficiency numbers go way way up. https://lists.dragonflybsd.org/pipermail/users/2018-September/357883.html https://lists.dragonflybsd.org/pipermail/users/2018-Septembe... People keep being afraid of high power cores & they just don't know any better. The situation has just gotten better and better and easier and easier to dial in an arbitrary desired power level, and you get it. At some bit to multicore performance, but efficiency usually goes way way up.

craftkiller 3y ago
> Is it? I doubt that. The 350W tdp? Its in the article. There's a table of each pro sku and their TDP.
craftkiller 3y ago
Its too late for me to edit my reply so I'm adding another: Just wanted to say that you had a good point about modern cores being configurable (for example, on my laptop I set the EPP 100% towards energy efficiency by default and then when I know I'm going to be running some serious long-running computations I'll run a script to make the EPP favor performance). I'll have to wait for these to be released to see how low their power usage can go considering they might have a high floor since I doubt these were designed for low power usage, but this has at least revived my consideration of these CPUs. That being said, there is one other thing to consider: motherboards. I have a first generation threadripper in my desktop and through a series of dumb moves with very heavy graphics cards, I have broken a number of the PCIe slots. I looked into getting a replacement motherboard since I figured they'd be cheap by now since they're so out of date, but first generation threadripper motherboards are like $700-$1000, while the people who bought AM4 socketed CPUs got multiple generations of CPU upgrades AND their motherboards now cost $100-$200. There are some undeniable advantages to being on their more popular consumer lines instead of the prosumer threadripper.