AMD Zen and Ryzen 7 Review: A Deep Dive • Hacker News Board

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

#141

Post by slantyyz » Thu, Mar 02, 2017, 4:56 PM UTC

Geee wrote: post #133

slantyyz wrote: post #95

Earlier quoted context omitted.

From everything I've seen, the Ryzen's main appeal is bang for the buck. If you're after pure performance, then you simply go with the best for your use case, whether it is Ryzen or not. If you're on a tight budget, however, things get interesting.

It's not so clear, because 7700K offers more bang for the buck in single-threading cases, which is more important in typical computer use.

> It's not so clear, because 7700K offers more bang for the buck in single-threading cases

hence, "things get interesting"

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

#142

Post by noipv4 » Thu, Mar 02, 2017, 4:56 PM UTC

sounds wrote: post #131

noipv4 wrote: post #17

The proof is in the pudding. Competition is back. Intel has started slashing prices of its latest CPUs left right and center.

I'm actually curious which prices have changed. A quick google turned up an article claiming prices were being cut [1] but looking at the full price history tells a different story: http://imgur.com/a/vDHAv It looks like Intel's retail channel partners have a lot of inventory still in the pipeline. Prices are still within the bounds of the second half 2016. My best guess is the retail channel partners will be the mos…

http://www.guru3d.com/news-story/intel-is-dropping-processor...

http://www.microcenter.com/product/472529/Core_i7-7700K_Kaby...

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

#143

Post by bitL » Thu, Mar 02, 2017, 5:01 PM UTC

I'll definitely consider 1800X for my movie rendering/machine learning rig, especially if they confirm ECC functionality. 40 PCI-E lanes would be better, but I can live with 2x x8 GPUs and only one x4 SSD for machine learning.

Interesting would be 4C/8T parts - if they can run them cool (given 8C/16T 1700 uses 65W I think it's not unreasonable), they probably can clock them to get to 7700k parity at 95W.

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

#144

Post by 69mlgsniperdad » Thu, Mar 02, 2017, 5:01 PM UTC

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.

Looks like you figured it out. If not, I did actually see someone about a month ago mention in a comment here, that they may or may not be in possession of a Reddit account. I'll take a look and see if I can find the original comment. Maybe someone else has seen.

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

#145

Post by floatboth » Thu, Mar 02, 2017, 5:03 PM UTC

onli wrote: post #130

floatboth wrote: post #98

Earlier quoted context omitted.

It's also 0.1fps faster than the 6950X in the Civ VI AI test. And the 6950X is literally fucking $1700, that's over THREE TIMES more expensive than the top Ryzen.

But you ignore that the i7-7700K is faster in that benchmark. And that one is cheaper. So is the i5. If you do more than games, the Ryzen seems like a a good choice. It has serious power in applications, and is still fast in Games - which is a big step up compared to the FX. But no, it is not the goto choice for a gaming PC.

Yeah, I'm not arguing with that, I actually made that same exact point in a different thread :) I'm just pointing out how it compares to more expensive 8/10-core CPUs.

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

#146

Post by pmoriarty » Thu, Mar 02, 2017, 5:03 PM UTC

Do high-end Ryzen chips need liquid cooling?

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

#147

Post by AnthonyMouse » Thu, Mar 02, 2017, 5:10 PM UTC

lostmsu wrote: post #139

karpodiem wrote: post #132

Earlier quoted context omitted.

and this is exactly why I'm getting one. Cheap, power efficient, eight cores. It may not win everything, but it works for me.

According to Web performance chart, it looses to 7700T, which has 1/2 TDP and 5% lower price.

> According to Web performance chart, it looses to 7700T, which has 1/2 TDP and 5% lower price.

It also has 1/2 cores, which doesn't show up on the single threaded benchmarks but explains the price and TDP differences.

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

#148

Post by aesthetics1 » Thu, Mar 02, 2017, 5:13 PM UTC

What is the deal with 16 PCIe lanes? With the move to PCIe storage, this is disappointing. I am happy to see the price/performance is good (which is surely going to force Intel to be competitive again), but if this is targeting the high-end, I can not understand 16 PCIe lanes.

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

#149

Post by timlin » Thu, Mar 02, 2017, 5:13 PM UTC

Geee wrote: post #127

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.

That's not true. 2 weak horses != 1 strong horse. 1 strong horse can do the work of 2 weak horses, but not the other way around. A single core can run multiple threads, but multiple cores can't work together on a single-thread task.

Actually, 2 weak horses could probably equal 1 strong horse.

http://timmaurer.com/2012/01/16/horse-sense/

https://www.quora.com/Is-it-true-that-two-horses-pulling-tog...

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

#150

Post by gigatexal » Thu, Mar 02, 2017, 5:15 PM UTC

floatboth wrote: post #118

gigatexal wrote: post #112

Earlier quoted context omitted.

That'd be a fun test, too. One would need to control for disk io but definitely useful. I wonder how many HN readers run FBSD

RAM disk possibly? Would be nice to make a simple one-click benchmark: download a VirtualBox VM and click Start — it boots mfsbsd and starts compiling to a RAM disk, measuring the time.

Too complicated. I was thinking just have some baseline numbers on a clean SSD and run the buildworld a bunch of times. Either would work tho the latter I'm confident I could do.