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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

#161

Earlier quoted context omitted.

$17 billion is peanuts for Apple. However, Apple uses TSMC for fabrication and they are already at 7nm. No need to own fabs. AMD doesn't own fabs either. The Apple designed A12X Bionic processor contains 10 billion transistors and is already competitive with desktop processors from AMD and Intel. Do you think it would be that difficult for Apple to design a desktop or laptop version? They have more than enough money…

But it is the share holders peanuts - is a quixotic and expensive charge to over take AMD or Intel the best use of our money?

I thought I made this clear in my previous response. Apple is already highly competitive in processor design. The A12X matches the mid range processors from AMD and Intel. AMD does not own a fab. Apple doesn't need to own a fab either.

It turns out they are going ahead with this plan already https://www.bloomberg.com/news/articles/2018-04-02/apple-is-...

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

#162
post #87

This was expected because the 3900X is optimized for fewer faster cores (12 at 3.8GHz) while the 9980XE is optimized for more slower cores (18 at 3.0GHz.) A better and far more impressive comparison would be the 3950X vs 9980XE which have comparable number of cores (16 vs 18). And in that instance AMD still beats Intel in both single-threaded and multi-threaded workloads! And by wide margins! And with AMD being 62% c…

You're forgetting Intel's trouncing in the Pentium4/Athlon XP days also. It's been a while, but I for one am looking forward to a very competitive marketplace for desktop CPUs.

He was referring to the K7 architecture which includes the Athlon XP brand.

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

#163

Earlier quoted context omitted.

$17 billion is peanuts for Apple. However, Apple uses TSMC for fabrication and they are already at 7nm. No need to own fabs. AMD doesn't own fabs either. The Apple designed A12X Bionic processor contains 10 billion transistors and is already competitive with desktop processors from AMD and Intel. Do you think it would be that difficult for Apple to design a desktop or laptop version? They have more than enough money…

But it is the share holders peanuts - is a quixotic and expensive charge to over take AMD or Intel the best use of our money?

[deleted]

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

#164

Earlier quoted context omitted.

So from a recent standing start Apple are going to beat Intel and AMD - I could see Apple using their own cpu's for tablets and phones but for work stations I don't think so.

You're probably right. But don't underestimate Apple. They have $250 billion in cash reserves.

[deleted]

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

#165

Earlier quoted context omitted.

Apple is probably going to switch to their own chips before they switch to AMD.

So from a recent standing start Apple are going to beat Intel and AMD - I could see Apple using their own cpu's for tablets and phones but for work stations I don't think so.

"Apple Plans to Use Its Own Chips in Macs From 2020, Replacing Intel" https://www.bloomberg.com/news/articles/2018-04-02/apple-is-...

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

#166
post #154

Earlier quoted context omitted.

The mozilla/rr debugger doesn't work on Ryzen CPUs - https://github.com/mozilla/rr/issues/2034 (rr stands for Record and Replay Framework, it's a gdb extension which allows for reverse execution)

Interesting that GDB had its own "time travel" support for longer that afaik works on AMD. Will have to see what rr brings to the table.

GDB's recording is extremely limited. It doesn't even work on multi threaded programs.

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

#167
post #36

Earlier quoted context omitted.

I put a 2700X in my most recent desktop and a 2400G in my HTPC. For the price they can't be beat.

Are you gaming with the 2700X by chance? How is it?

It works great. With a 1070 as my video card I'm fairly certain the processor is not a bottleneck.

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

#168

Earlier quoted context omitted.

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.

Does it work with VirtualBox? I want to run Windows.

You can run Windows in KVM. I haven't used VirtualBox for years so my knowledge is out of date.

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

#169

Earlier quoted context omitted.

Not true. Copy-pasting from my Ryzen terminal: $ spectre-meltdown-checker | grep "NOT VULNERABLE" | wc -l 12

So? The same script reports 11 lines on my 4 year old Haswell. It should read as "mitigated or not vulnerable" instead of simply "not vulnerable". Edit: oh wait, it's actually 12 lines, the same as on your system. The reason it reported 11 on the first run is because KPTI has been disabled manually here.

:) I grepped for the wrong thing. Here's a better version:

   $ sudo spectre-meltdown-checker | grep "Not affected" | wc -l


   On Skylake: 0
   On Ryzen  : 10
I don't have an Ivy Bridge CPU to test this on, but AMD has suffered from _significantly_ fewer number of vulnerabilities than Intel, not just "one more" as the top commenter suggested.

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

#170
post #166
post #154

Earlier quoted context omitted.

Interesting that GDB had its own "time travel" support for longer that afaik works on AMD. Will have to see what rr brings to the table.

GDB's recording is extremely limited. It doesn't even work on multi threaded programs.

It's also about 1000x slowdown during recording, where rr is < 2x.
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