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Funny, I just finished building mine - same Ryzen 7 1800X, switching from MacBook Pro/iMac to Ubuntu as well, got 3200MHz RAM also, which booted into 2333MHz as

Funny, I just finished building mine - same Ryzen 7 1800X, switching from MacBook Pro/iMac to Ubuntu as well, got 3200MHz RAM also, which booted into 2333MHz as well (will need to wait for motherboard update to get full speed I guess), M.2 SSD... I wonder if it's becoming a trend (to move from macOS to Linux)?

RowanH 10y ago
Gave up waiting for a Mac Pro option April last year, built a monster Win 10 machine - run all my dev work in VMs and get to play the odd game in Ultra settings at astonishing frame rates on an Ultrawide. Can't see ever going back to Mac's ... in fact ordering parts for an 1800x machine at the moment.
- maksimum 10y ago
  Are you running Linux VMs or were you able to get a OS X VM running?
  - ryan-allen 10y ago
    Not OP, but Windows 10 has a Linux Subsystem which is in beta. I use it for bits and pieces for work and I haven't had any issues, I'm not pushing it much though. https://en.wikipedia.org/wiki/Windows_Subsystem_for_Linux https://en.wikipedia.org/wiki/Windows_Subsystem_for_Linux
    - Stubb 10y ago
      I'm pushing WSL fairly hard doing OpenMP development. I/O is slow, but it's totally credible for numerics.
  - egeozcan 10y ago
    As you'd have WSL and Linux VMs, you probably wouldn't need an OSX VM if I'm not missing anything? Unless you're building something for OSX, that is. I know, btw, that it's possible to run OSX in VMware.
- swah 10y ago
  I find that a bit of a hassle - Windows filesystem not matching Linux, etc. Do you generally work inside the graphical environment? That could be easier..
natch 10y ago
To your last point, it doesn't have to be a move. I'm not getting away from macOS for my laptop any time soon, but I am looking at getting a Linux desktop so I can use libraries that use CUDA. Having the second one doesn't mean I'll ditch the first.
kogepathic 10y ago
> got 3200MHz RAM also, which booted into 2333MHz as well (will need to wait for motherboard update to get full speed I guess) The highest official DDR4 frequency is 2400MHz. Anything beyond that is technically overclocking. Testing has shown that there is very little performance benefit above 2666MHz. [0] The long and short is that manufacturers are happy to sell you 3200MHz RAM, but you're paying for speed you'll likely never use: your CPU memory controller needs to be stable at those overclocked speeds, and the performance gains are minimal. [0] https://www.youtube.com/watch?v=D_Yt4vSZKVk https://www.youtube.com/watch?v=D_Yt4vSZKVk
- floatboth 10y ago
  Of course RAM overclocking only really matters for overclockers' benchmarks ( e.g. Super Pi: 6m37s @ 2133 MHz, 6m6s @ 4000 MHz https://youtu.be/NiZXmijRRjw https://youtu.be/NiZXmijRRjw ) However on Ryzen, RAM frequency directly determines the frequency of the bridge between the two 4-core complexes the CPU is made of! This matters a lot.
- onli 10y ago
  While it may be technically overclocking, the default ram clock of Ryzen boards is DDR4-2666. If you look at the right benchmarks you will see that faster ram can bring enormous performance benefits, even in games, which is an area where the contrary was claimed in the last few years. Some examples are https://www.youtube.com/watch?v=G5ejBlynOV8 https://www.youtube.com/watch?v=G5ejBlynOV8 and https://www.reddit.com/r/buildapc/comments/5agh8f/skylake_cpu_and_ram_gaming_impact_benchmarked/ https://www.reddit.com/r/buildapc/comments/5agh8f/skylake_cp.... That's for Intel, but the same is true for AMD and Ryzen.
  - kogepathic 10y ago
    > you will see that faster ram can bring enormous performance benefits Okay, so looking at the spreadsheet of results from the Reddit thread [0]: - Overclocking the RAM from 2133MHz to 3000MHz resulted on average an 8% increase in FPS. This is a 40% higher frequency netting on average 8% more performance - They only tested two speeds: 2133MHz and 3000MHz I would imagine that the difference between 2400MHz (officially the top speed of DDR4) and 3000MHz would be even less than the 8% they found. Let's assume, based on no evidence whatsoever, that the performance gains are linear. For 40% increase in RAM clock, you get 8% performance gain. So from: - 2400MHz->3000MHz: 5% increase in performance - 2666MHz->3000MHz: 2.5% increase in performance You also have to account for the fact that: - Higher speed RAM costs more - Overclocking will consume more power and generate more heat Based on the above, where the average benefit from a 40% RAM overclock was a mere 8% performance gain, I'm just not seeing how "enormous" the performance benefits are. [0] https://docs.google.com/spreadsheets/d/1LKmt9FDEjFXeu3USK1bzjzRidhg3frgwWx7mPUlOWEc/edit#gid=1267098471 https://docs.google.com/spreadsheets/d/1LKmt9FDEjFXeu3USK1bz...
theandrewbailey 10y ago
The default RAM frequency is a factor of how many sticks you have and how many banks they have. It seems that you want to have as high RAM frequency as possible, for the unintuitive reason that Ryzen is built from two quad core "complexes" that talk to each other at RAM frequency. http://www.legitreviews.com/ddr4-memory-scaling-amd-am4-platform-best-memory-kit-amd-ryzen-cpus_192259 http://www.legitreviews.com/ddr4-memory-scaling-amd-am4-plat... I'll be building a Ryzen system tonight for a podcast. Same CPU, RAM, and SSD, and I'll put it in my Fractal R4 case. I bit the bullet and got the Asus X370 board, for the extra USB ports. I also discovered the sad state of AM4 coolers. Honestly, I expected the CPU itself to be in short supply, but the Coolermaster bracket being out-of-stock is ridiculous. I went with a cheapish Thermaltake, and I'm considering eventually building a custom water loop.
Stubb 10y ago
> I wonder if it's becoming a trend (to move from macOS to Linux)? Anecdotally among my peer group, yes, with Windows 10 becoming a viable option due to Windows Subsystem for Linux. I hear lots of grumbling about Apple having turned into a gadget company under Cook and apparently forgetting that they even sell the Mac Pro & Mac Mini. Two friends purchased DongleBook Pros, but they feel kind of embarrassed about having done so. I installed Windows 10 over MacOS on my work machine, and my next personal machine will run Windows 10.

RowanH 10y ago

Gave up waiting for a Mac Pro option April last year, built a monster Win 10 machine - run all my dev work in VMs and get to play the odd game in Ultra settings at astonishing frame rates on an Ultrawide. Can't see ever going back to Mac's ... in fact ordering parts for an 1800x machine at the moment.

maksimum 10y ago
Are you running Linux VMs or were you able to get a OS X VM running?
- ryan-allen 10y ago
  Not OP, but Windows 10 has a Linux Subsystem which is in beta. I use it for bits and pieces for work and I haven't had any issues, I'm not pushing it much though. https://en.wikipedia.org/wiki/Windows_Subsystem_for_Linux https://en.wikipedia.org/wiki/Windows_Subsystem_for_Linux
  - Stubb 10y ago
    I'm pushing WSL fairly hard doing OpenMP development. I/O is slow, but it's totally credible for numerics.
- egeozcan 10y ago
  As you'd have WSL and Linux VMs, you probably wouldn't need an OSX VM if I'm not missing anything? Unless you're building something for OSX, that is. I know, btw, that it's possible to run OSX in VMware.
swah 10y ago
I find that a bit of a hassle - Windows filesystem not matching Linux, etc. Do you generally work inside the graphical environment? That could be easier..

natch 10y ago

To your last point, it doesn't have to be a move. I'm not getting away from macOS for my laptop any time soon, but I am looking at getting a Linux desktop so I can use libraries that use CUDA. Having the second one doesn't mean I'll ditch the first.

kogepathic 10y ago

> got 3200MHz RAM also, which booted into 2333MHz as well (will need to wait for motherboard update to get full speed I guess) The highest official DDR4 frequency is 2400MHz. Anything beyond that is technically overclocking. Testing has shown that there is very little performance benefit above 2666MHz. [0] The long and short is that manufacturers are happy to sell you 3200MHz RAM, but you're paying for speed you'll likely never use: your CPU memory controller needs to be stable at those overclocked speeds, and the performance gains are minimal. [0] https://www.youtube.com/watch?v=D_Yt4vSZKVk https://www.youtube.com/watch?v=D_Yt4vSZKVk

floatboth 10y ago
Of course RAM overclocking only really matters for overclockers' benchmarks ( e.g. Super Pi: 6m37s @ 2133 MHz, 6m6s @ 4000 MHz https://youtu.be/NiZXmijRRjw https://youtu.be/NiZXmijRRjw ) However on Ryzen, RAM frequency directly determines the frequency of the bridge between the two 4-core complexes the CPU is made of! This matters a lot.
onli 10y ago
While it may be technically overclocking, the default ram clock of Ryzen boards is DDR4-2666. If you look at the right benchmarks you will see that faster ram can bring enormous performance benefits, even in games, which is an area where the contrary was claimed in the last few years. Some examples are https://www.youtube.com/watch?v=G5ejBlynOV8 https://www.youtube.com/watch?v=G5ejBlynOV8 and https://www.reddit.com/r/buildapc/comments/5agh8f/skylake_cpu_and_ram_gaming_impact_benchmarked/ https://www.reddit.com/r/buildapc/comments/5agh8f/skylake_cp.... That's for Intel, but the same is true for AMD and Ryzen.
- kogepathic 10y ago
  > you will see that faster ram can bring enormous performance benefits Okay, so looking at the spreadsheet of results from the Reddit thread [0]: - Overclocking the RAM from 2133MHz to 3000MHz resulted on average an 8% increase in FPS. This is a 40% higher frequency netting on average 8% more performance - They only tested two speeds: 2133MHz and 3000MHz I would imagine that the difference between 2400MHz (officially the top speed of DDR4) and 3000MHz would be even less than the 8% they found. Let's assume, based on no evidence whatsoever, that the performance gains are linear. For 40% increase in RAM clock, you get 8% performance gain. So from: - 2400MHz->3000MHz: 5% increase in performance - 2666MHz->3000MHz: 2.5% increase in performance You also have to account for the fact that: - Higher speed RAM costs more - Overclocking will consume more power and generate more heat Based on the above, where the average benefit from a 40% RAM overclock was a mere 8% performance gain, I'm just not seeing how "enormous" the performance benefits are. [0] https://docs.google.com/spreadsheets/d/1LKmt9FDEjFXeu3USK1bzjzRidhg3frgwWx7mPUlOWEc/edit#gid=1267098471 https://docs.google.com/spreadsheets/d/1LKmt9FDEjFXeu3USK1bz...

theandrewbailey 10y ago

The default RAM frequency is a factor of how many sticks you have and how many banks they have. It seems that you want to have as high RAM frequency as possible, for the unintuitive reason that Ryzen is built from two quad core "complexes" that talk to each other at RAM frequency. http://www.legitreviews.com/ddr4-memory-scaling-amd-am4-platform-best-memory-kit-amd-ryzen-cpus_192259 http://www.legitreviews.com/ddr4-memory-scaling-amd-am4-plat... I'll be building a Ryzen system tonight for a podcast. Same CPU, RAM, and SSD, and I'll put it in my Fractal R4 case. I bit the bullet and got the Asus X370 board, for the extra USB ports. I also discovered the sad state of AM4 coolers. Honestly, I expected the CPU itself to be in short supply, but the Coolermaster bracket being out-of-stock is ridiculous. I went with a cheapish Thermaltake, and I'm considering eventually building a custom water loop.

Stubb 10y ago

> I wonder if it's becoming a trend (to move from macOS to Linux)? Anecdotally among my peer group, yes, with Windows 10 becoming a viable option due to Windows Subsystem for Linux. I hear lots of grumbling about Apple having turned into a gadget company under Cook and apparently forgetting that they even sell the Mac Pro & Mac Mini. Two friends purchased DongleBook Pros, but they feel kind of embarrassed about having done so. I installed Windows 10 over MacOS on my work machine, and my next personal machine will run Windows 10.