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$499 AMD Ryzen 9 3900X Almost as Fast as $2000 Intel Core I9-9980XE

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Re: $499 AMD Ryzen 9 3900X Almost as Fast as $2000 Intel Core I9-9980XE

#61

Post by scott00 »

molticrystal wrote: post #27

Out of curiosity, has anybody had anything in the AMD Ryzen instruction set missing that required you to purchase an Intel 9xxx instead? Any significant differences in regards to scientific applications or machine learning?

I use the TSC for high precision timing, and turning TSC ticks into nanoseconds requires interpreting model specific registers, so my timing code would need AMD specific patches to work properly on those processors. Not necessarily a deal-breaker, but it would definitely be an annoyance for me if I did decide to switch. Probably not super relevant to scientific computing or ML though.

Re: $499 AMD Ryzen 9 3900X Almost as Fast as $2000 Intel Core I9-9980XE

#62

Post by LeSaucy »

TwoNineA wrote: post #44
vbezhenar wrote: post #39

Earlier quoted context omitted.

I'm considering Intel for my next workstation because I want to be able to run macOS at least in VirtualBox (or just run Hackintosh, did not decide yet). For some reason macOS does not like AMD CPUs.

You can run MacOS through KVM easy on Ryzen. Even GPU passthrough works fine.

iMessage and other features generally break when running amd macintoshes, intel ones are indistinguishable.

Re: $499 AMD Ryzen 9 3900X Almost as Fast as $2000 Intel Core I9-9980XE

#63

Post by tapirl »

0x5002 wrote: post #40
tapirl wrote: post #34

I just assembled a new computer: amd 2200g ($90) + MSI B450M MORTAR ($90) + Intel 512GB SSD M.2 ($68) + 4 x 16G 2666 memory (4 x $72). I installed the debian testing system. After the installation, X hung at starting up. But after installing amdgpu driver by following this tutorial: https://wiki.debian.org/How%20to%20install%20official%20AMDG... , it works like a charming now.

Do you happen to know if cpu and case fan controls work on Debian on your machine? I have a server with a very similar setup, but cannot control the fans. ~ sensors No sensors found!

The sensors command returns the following info:

    $ sensors
    amdgpu-pci-3800
    Adapter: PCI adapter
    vddgfx:           N/A  
    vddnb:            N/A  
    temp1:        +36.0°C  (crit = +80.0°C, hyst =  +0.0°C)
    
    k10temp-pci-00c3
    Adapter: PCI adapter
    Tdie:         +36.5°C  (high = +70.0°C)
    Tctl:         +36.5°C
I don't know how to detect fan temperatures.

Re: $499 AMD Ryzen 9 3900X Almost as Fast as $2000 Intel Core I9-9980XE

#64

Post by noir_lord »

travbrack wrote: post #53
tapirl wrote: post #34

I just assembled a new computer: amd 2200g ($90) + MSI B450M MORTAR ($90) + Intel 512GB SSD M.2 ($68) + 4 x 16G 2666 memory (4 x $72). I installed the debian testing system. After the installation, X hung at starting up. But after installing amdgpu driver by following this tutorial: https://wiki.debian.org/How%20to%20install%20official%20AMDG... , it works like a charming now.

I had to double check your price on the SSD. When did SSDs get so cheap??

That was my reaction when I looked again.

You can get a 1TB WD Black nvme m2 ssd for less than half the equiv a year ago, bonkers.

Re: $499 AMD Ryzen 9 3900X Almost as Fast as $2000 Intel Core I9-9980XE

#65

Post by petepete »

vbezhenar wrote: post #39
molticrystal wrote: post #27

Out of curiosity, has anybody had anything in the AMD Ryzen instruction set missing that required you to purchase an Intel 9xxx instead? Any significant differences in regards to scientific applications or machine learning?

I'm considering Intel for my next workstation because I want to be able to run macOS at least in VirtualBox (or just run Hackintosh, did not decide yet). For some reason macOS does not like AMD CPUs.

There was a recent video on Linus Tech Tips where they set up a Threadripper workstation running macOS via KVM and it out-performed a top of the line iMac Pro.

Re: $499 AMD Ryzen 9 3900X Almost as Fast as $2000 Intel Core I9-9980XE

#66

Post by esmi »

This is comparing an unreleased CPU to a two year old one.

But more importantly, it gives no information on how the Intel CPU was configured and we have no idea what kind of memory it was paired with.

It's just comparing two random user submissions. Here's another i9-9980XE where Intel scored 7700 in single core.

https://browser.geekbench.com/v4/cpu/12111208

Re: $499 AMD Ryzen 9 3900X Almost as Fast as $2000 Intel Core I9-9980XE

#67

Post by nsporillo »

pella wrote: post #35
molticrystal wrote: post #27

Out of curiosity, has anybody had anything in the AMD Ryzen instruction set missing that required you to purchase an Intel 9xxx instead? Any significant differences in regards to scientific applications or machine learning?

in ZEN2: "The key highlight improvement for floating point performance is full AVX2 support. AMD has increased the execution unit width from 128-bit to 256-bit, allowing for single-cycle AVX2 calculations, rather than cracking the calculation into two instructions and two cycles. This is enhanced by giving 256-bit loads and stores, so the FMA units can be continuously fed. AMD states that due to its energy aware sche…

Darn, I just bought a Samsung 970 Pro 1TB NVMe drive for my new Ryzen zen2 build. I probably should have waited to buy this PCI4.0 drive instead. Thanks for sharing

Re: $499 AMD Ryzen 9 3900X Almost as Fast as $2000 Intel Core I9-9980XE

#68

Post by Baeocystin »

travbrack wrote: post #53
tapirl wrote: post #34

I just assembled a new computer: amd 2200g ($90) + MSI B450M MORTAR ($90) + Intel 512GB SSD M.2 ($68) + 4 x 16G 2666 memory (4 x $72). I installed the debian testing system. After the installation, X hung at starting up. But after installing amdgpu driver by following this tutorial: https://wiki.debian.org/How%20to%20install%20official%20AMDG... , it works like a charming now.

I had to double check your price on the SSD. When did SSDs get so cheap??

Just this past month every local semi-tech store (think Staples, Best Buy, etc) had sales on SSD's that were nuts. I picked up a stack of 120 Gb HP drives for ~$20 each, and the 256's were not even $10 more. It let me put back in to use a bunch of good-except-for-dog-slow-spinning-rust systems I had lying around. Not complaining!

Re: $499 AMD Ryzen 9 3900X Almost as Fast as $2000 Intel Core I9-9980XE

#69

Post by volkadav »

travbrack wrote: post #53
tapirl wrote: post #34

I just assembled a new computer: amd 2200g ($90) + MSI B450M MORTAR ($90) + Intel 512GB SSD M.2 ($68) + 4 x 16G 2666 memory (4 x $72). I installed the debian testing system. After the installation, X hung at starting up. But after installing amdgpu driver by following this tutorial: https://wiki.debian.org/How%20to%20install%20official%20AMDG... , it works like a charming now.

I had to double check your price on the SSD. When did SSDs get so cheap??

QLC being intro'd, iirc, was the most recent inflection point.

(background reading: https://en.wikipedia.org/wiki/Multi-level_cell)

Re: $499 AMD Ryzen 9 3900X Almost as Fast as $2000 Intel Core I9-9980XE

#70

Post by Baeocystin »

CapricornNoble wrote: post #38
boyadjian wrote: post #2

My next CPU will be an AMD.

I'm been thinking of building a low-end AMD APU system solely for Windows gaming (all of my computers except an old Panasonic CF-19 are running Kubuntu). Even the Ryzen 3 2200G can handle almost any game I'm likely to throw at it.

I picked up a Ryzen 5 laptop last month (great sale at Costco, needed a new cheap machine) and I'm shocked at how well it performs, in both compute and GPU. It's not my desktop's GTX1080, but it can play anything I've thrown at it without needing an additional discrete chip like my older Intel/Nvidia machine.
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