*** AMD "Zen" thread (inc AM4/APU discussion) ***

[FloatingPoint]

Incorrect.

Watching a video (in general) at a higher resolution than your monitor, for better bitrate, will result in better picture quality. Particularly if it's not RAW video, which is 99% of the time.

In the exact example for YouTube, there are 2 very straightforward things going on.

If we go back to this:



Firstly you can see with simple maths that the higher resolutions actually have higher bitrate per pixel per frame. So 1 pixel of 4K60 has more information than 1 pixel of 1080p60.

This is because 4K60 is 4x the pixels of 1080p60, but the bitrate is up to 5.7x higher.

The second thing that's quite important is the YCbCr compression used in h264/VP9 (or 4:2:2).

Basically when you downsample 4k60 4:2:2 content, you can use the extra information to output 1080p60 4:4:4 video (also with higher information per pixel, in YouTube's case).

All of which is definitely incorrect as you are starting with h.264/265 compressed footage to upload, unless you do something stupid like try to upload uncompressed 4:4:4 RGB / Composite straight to the cloud. Raw codecs like stuff from RED or similar are a capture/edit format. Youtube is like an mp3 (in fact an mp4). Yes you can use down sampled 4:4:2 4K to 4:4:4 1080p at capture/edit stage but not on playback via h264/265/webmovie/flash.

 

[Thekwango]

Any reason why the Zen thread is being bogged down with YouTube bit rate chat or am I missing something?!

 

[N19h7m4r3]

Any reason why the Zen thread is being bogged down with YouTube bit rate chat or am I missing something?!

Peeps were checking how well Ryzen handles 8K YouTube video, on Chrome it taxes the CPU far more than on Edge.

Queue someone going "Why even bother with it".

 

[N19h7m4r3]

Looks like one of the first Engineering Samples for an APU has shown up at SiSoftware's database.

http://ranker.sisoftware.net/show_s...ead7e6c0a895a086fec3f2d4b1d4e9d9ff8cb189&l=de

Looks to be clocked at 3Ghz at the moment, with an 11CU 800Mhz GPU.

 

[AllBodies]

All of which is definitely incorrect as you are starting with h.264/265 compressed footage to upload, unless you do something stupid like try to upload uncompressed 4:4:4 RGB / Composite straight to the cloud. Raw codecs like stuff from RED or similar are a capture/edit format. Youtube is like an mp3 (in fact an mp4). Yes you can use down sampled 4:4:2 4K to 4:4:4 1080p at capture/edit stage but not on playback via h264/265/webmovie/flash.

Have a look at this: https://youtu.be/kIf9h2Gkm_U

Also I made a mistake, it's 4:2:0 widely used, not 4:2:2.

 

[FloatingPoint]

Have a look at this: https://youtu.be/kIf9h2Gkm_U

Also I made a mistake, it's 4:2:0 widely used, not 4:2:2.

You all brought up 8k youtube playback in this thread in relation to downsampling and CPU performance? I only asked/assumed that you were playing back 8K on an 8K monitor.

 

[FloatingPoint]

Anyone got release dates for Naples?

 

[Beren]

It will be interesting to see just how much progress AMD has made on the APU front, Kaveri (and the other ones I can't remember...) gave a lot of people good basic gaming performance at an awesome price point. This will deliver twice the cores and hopefully the same 52% IPC increase. That should make it 3 times more capable from a CPU perspective which negates one of the hardest to swallow aspects of the previous AMD APU's.

Of course what we don't know at the moment is how Polaris cores rank against Vega. But there are 14 Polaris CU's in an RX560 - So hopefully 11 Vega CU's puts graphics performance north of that.

It makes a chip that will ace all productivity tasks for mainstream use - it would make a very attractive OEM platform with strong 1080p gaming credentials.

Ryzen may be the enthusiast chip we were all hoping to see making AMD a really strong argument at the top of the tree but from a long term health of AMD perspective I can see this APU being massive.

 

[N19h7m4r3]

Anyone got release dates for Naples?

AMD stated tail end of Q2 for Naples, and also in the second half of 2017. So it's a staggered launch.
https://seekingalpha.com/article/40...-2017-results-earnings-call-transcript?page=8

to the second of the year, we'd see with the full impact of, not just the Ryzen product, but also launching the Naples product that's coming up at the tail end of Q2 and then again the second half of 2017.

 

[FloatingPoint]

AMD stated tail end of Q2 for Naples, and also in the second half of 2017. So it's a staggered launch.
https://seekingalpha.com/article/40...-2017-results-earnings-call-transcript?page=8

So it's out but hidden?

 

[FloatingPoint]

It will be interesting to see just how much progress AMD has made on the APU front, Kaveri (and the other ones I can't remember...) gave a lot of people good basic gaming performance at an awesome price point. This will deliver twice the cores and hopefully the same 52% IPC increase. That should make it 3 times more capable from a CPU perspective which negates one of the hardest to swallow aspects of the previous AMD APU's.

Of course what we don't know at the moment is how Polaris cores rank against Vega. But there are 14 Polaris CU's in an RX560 - So hopefully 11 Vega CU's puts graphics performance north of that.

It makes a chip that will ace all productivity tasks for mainstream use - it would make a very attractive OEM platform with strong 1080p gaming credentials.

Ryzen may be the enthusiast chip we were all hoping to see making AMD a really strong argument at the top of the tree but from a long term health of AMD perspective I can see this APU being massive.

it would be a very great marketing move if Vega cores already exist in zen CPU's and AMD do a 'one more thing' boom y'all have vega already, here's the new firmware.

 

[Beren]

it would be a very great marketing move if Vega cores already exist in zen CPU's and AMD do a 'one more thing' boom y'all have vega already, here's the new firmware.

This APU is scheduled for Q4 I think? Hopefully it will mean that there is a new breed of budget gaming options on the market for Christmas this year. With the increased price of an Xbox Scorpio a budget gaming box built around one of these could be very very attractive for Christmas.

-Edit- I was wondering if we could extrapolate Vega CU performance based on these results to see where it was going to sit against Nvidia, However this will have a completely different interposer design among many other differences so I doubt it would work.

 

[N19h7m4r3]

So it's out but hidden?

We're still in Q2, it ends last day of June. So still a while before they to get it out, and then with them saying later as well means it could be a staggered launch like the RyZen line up is.

 

[Orcvader]

They released a bunch of Naples vids last night:

AMD Server Innovation History: https://www.youtube.com/watch?v=gElZe08cAEE
“Naples” Server CPU + Radeon Instinct: https://www.youtube.com/watch?v=A0HMP0t0MPE
Zen Advantages with “Naples” Server CPU: https://www.youtube.com/watch?v=UPz6fU1e0Ro
“Naples” Hardware Innovation: https://www.youtube.com/watch?v=3MNFGW8HVZw
“Naples” Balanced Architecture: https://www.youtube.com/watch?v=71wQM4WFXg8

 

[N19h7m4r3]

Looking for those 12 and 16 core AMD CPUs?
Well their engineering samples are showing up.

3.6ghz with that core count is very promising.

https://videocardz.com/newz/amd-engineering-samples-update

 

[gavinh87]

Looking for those 12 and 16 core AMD CPUs?
Well their engineering samples are showing up.

3.6ghz with that core count is very promising.

https://videocardz.com/newz/amd-engineering-samples-update

Alienware R3!!?
Nice to see dell on board

 

[Curlyriff]

Looking for those 12 and 16 core AMD CPUs?
Well their engineering samples are showing up.

3.6ghz with that core count is very promising.

https://videocardz.com/newz/amd-engineering-samples-update

Cheers for link, looking pretty impressive. If they are reasonable it looks like 16/32 3.6GHz CPU is on the cards next year and should last a good number as well.

 

[Dicehunter]

Looking for those 12 and 16 core AMD CPUs?
Well their engineering samples are showing up.

3.6ghz with that core count is very promising.

https://videocardz.com/newz/amd-engineering-samples-update

Considering the 1800X costs £430 I can see the 16 core part coming in close to the £1000 mark.

 

[Curlyriff]

Considering the 1800X costs £430 I can see the 16 core part coming in close to the £1000 mark.

No problem with that. What is the cost of the equivalent Intel CPU? Their Xeon E5-2698 16 core 2.3/3.6GHz is £2800

 

[DragonQ]

3.6 GHz with 16 cores is insane, I wonder what the TDP of that chip is? But yeah, it'll be mega bucks.