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AMD Zen and Ryzen 7 Review: A Deep Dive

anandtech.com

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Re: AMD Zen and Ryzen 7 Review: A Deep Dive

#61

Post by NotSammyHagar »

Qantourisc wrote: post #56
tutanchamun wrote: post #53

Earlier quoted context omitted.

Considering previous AMD chips could use ECC I hope it's true this time as well. AMD's CEO Dr. Lisa Su has an AMA later today, we should probably ask her: https://www.reddit.com/r/Amd/comments/5vl431/its_happening_a... Might as well ask her about the possibility of coreboot if we are at it.

Does anyone has a reddit account ? And know how AMA's work ? I'd love to get some input here. Or at least show we care. Edit: Account made, instructions received. If all goes well I should be asking later today.

go to reddit. create an account. you don't need an email. then in that 'discussion' you ask your question. that is how amas work.

Re: AMD Zen and Ryzen 7 Review: A Deep Dive

#62

Post by qaq »

anthonybsd wrote: post #40
Vanayad wrote: post #16

Earlier quoted context omitted.

You do have to consider that this is an 8 core, and more and more applications are being developed with this in mind. Whoever still thinks that Single threaded performance is the most important, lives in the past.

Consumer applications? Doubt it. Not a whole lot of consumer-oriented applications parallelize that well to be honest.

look at how many threads your Chrome is running

Re: AMD Zen and Ryzen 7 Review: A Deep Dive

#63

Post by joatmon-snoo »

dmm wrote: post #8

> ... this means that the base memory controller in the silicon should be able to support ECC. We know that it is disabled for the consumer parts, but nothing has been said regarding the Pro parts. ECC should be a standard feature. If you don't want it you don't have to use it but to disable simply for market segmentation is lame.

Interestingly the linked article doesn't have this quote anymore, but the cached version on Google has it:

http://webcache.googleusercontent.com/search?q=cache:wO1MKok...

Re: AMD Zen and Ryzen 7 Review: A Deep Dive

#64

Post by jsheard »

olegkikin wrote: post #45
izacus wrote: post #31

If I read the specs correctly, Ryzens don't have GPUs integrated. Are there any motherboards out there with GPUs on board? Or do you always have to add a 150EUR+ graphics card to it (assuming I want at least 2x 4K display support)? The 1800X does seem like a killer value for the money for us C++ people :)

Why do you have to add a 150+EUR GPU? There are many cheap options. You can get Radeon R7 250 under $50, which absolutely destroys i7-6700k's integrated HD530.

The R7 250 doesn't have a single 4K output, nevermind the two he needs. For 4K you need Displayport 1.2 or HDMI 2.0.

(Technically HDMI 1.4 also supports 4K but only at 24hz, which is fine for TVs but a miserable experience on a PC desktop)

Re: AMD Zen and Ryzen 7 Review: A Deep Dive

#65

Post by eatbitseveryday »

Qantourisc wrote: post #56
tutanchamun wrote: post #53

Earlier quoted context omitted.

Considering previous AMD chips could use ECC I hope it's true this time as well. AMD's CEO Dr. Lisa Su has an AMA later today, we should probably ask her: https://www.reddit.com/r/Amd/comments/5vl431/its_happening_a... Might as well ask her about the possibility of coreboot if we are at it.

Does anyone has a reddit account ? And know how AMA's work ? I'd love to get some input here. Or at least show we care. Edit: Account made, instructions received. If all goes well I should be asking later today.

Making one takes 5 seconds and AMA = Ask Me Anything. You reply to the top post with your question and wait for a response.

Re: AMD Zen and Ryzen 7 Review: A Deep Dive

#66

Post by trueSlav »

izacus wrote: post #31

If I read the specs correctly, Ryzens don't have GPUs integrated. Are there any motherboards out there with GPUs on board? Or do you always have to add a 150EUR+ graphics card to it (assuming I want at least 2x 4K display support)? The 1800X does seem like a killer value for the money for us C++ people :)

The fact that it doesn't have an integrated gpu is a GREAT THING. This is an enthusiast/server CPU, if you can't be bothered to buy a cheap dedicated graphics card, wait for the mobile/apu Zen.

Re: AMD Zen and Ryzen 7 Review: A Deep Dive

#68

Post by redm »

dmm wrote: post #8

> ... this means that the base memory controller in the silicon should be able to support ECC. We know that it is disabled for the consumer parts, but nothing has been said regarding the Pro parts. ECC should be a standard feature. If you don't want it you don't have to use it but to disable simply for market segmentation is lame.

>ECC should be a standard feature. If you don't want it you don't have to use it but to disable simply for market segmentation is lame.

I agree ECC should be a standard feature, but it follows the same marketing patterns (in that industry) as disabling multi-processor support or artificially limiting clock speeds.

Re: AMD Zen and Ryzen 7 Review: A Deep Dive

#69

Post by dmm »

octoploid wrote: post #39
dmm wrote: post #8

> ... this means that the base memory controller in the silicon should be able to support ECC. We know that it is disabled for the consumer parts, but nothing has been said regarding the Pro parts. ECC should be a standard feature. If you don't want it you don't have to use it but to disable simply for market segmentation is lame.

Anandtech is wrong and ECC is not disabled at all. For example all ASRock AM4 boards support ECC memory.

Thanks for pointing this out. I found this on the specification page[0] for the ASRock "X370 Killer SLI/ac" AM4 board:

> AMD Ryzen series CPUs support DDR4 2667/2400/2133 ECC & non-ECC, un-buffered memory

So the board seems to accept ECC memory, hopefully that means the memory controller actually performs ECC? I found a reddit comment claiming that the boards accept ECC memory but don't perform error correction[1]. Not a great source but seemingly possible.

Do you have any more sources suggesting that ECC is actually being implemented?

For example, BIOSs often have ECC settings, if we had some screenshots of an AM4 board bios showing ECC setting that would be strong evidence.

[0] http://www.asrock.com/mb/AMD/X370%20Killer%20SLIac/index.asp...

[1] https://www.reddit.com/r/Amd/comments/5v0cqo/ryzen_supports_...

Re: AMD Zen and Ryzen 7 Review: A Deep Dive

#70

Post by teilo »

olegkikin wrote: post #54
yread wrote: post #4

Earlier quoted context omitted.

But it's still losing in every web and office single threaded benchmark. EDIT: compared to 7700k that costs about the same

But it wins in every case where performance truly matters: multi-threaded calculations, archiving, encoding. You know, the things that actually do take up time. Do you really care if your webpage renders for half a second longer?

No, it doesn't. Their hyperthreading model is clearly not as good as Intel's. Take a look at the Handbrake tests, which take full advantage of hyperthreading. The 7700K, with half the cores, is only a few frames/sec. behind.

If I was after encoding performance, I wouldn't buy a Ryzen. If I was after rendering performance, I wouldn't buy a Ryzen. Throw an mid-range nVidia on there for OpenCL, and the only CPU that makes sense for that price range is the 7700K.

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