Sandbo

引用:

原帖由 qcmadness 於 2017-2-13 21:38 發表
http://www.xtremesystems.org/for ... requencies-Revealed

Really not bad, I think Intel doesn't have any tricks yet.
If the performance is as shown in the leaks, AMD is really turning the table this time.

Sandbo

引用:

原帖由 qcmadness 於 2017-2-22 22:30 發表
http://www.anandtech.com/show/11 ... y-on-sale-march-2nd
http://techreport.com/news/31471 ... -chips-lead-the-ryz ...

If I haven't bought 6700k recently, I might be swapping the whole thing to Zen.
However, in the case of 4 threaded games, Kabylake probably still has an edge given the clock difference.

Sandbo

引用:

原帖由 tat0801 於 2017-2-26 22:29 發表

減得咁勁

Almost like spelling it out how strong Ryzen actually is

Sandbo

引用:

原帖由 Puff 於 2017-3-8 23:39 發表
打算落搭 1700X
iMac 十世都唔出


過兩日落場睇吓有乜板同有冇貨先
唔記得之前 sandro 推果隻 modular 牛牛乜型號添

Why not 1700?
All those three are 99% same, except the X series has so called XFR.
If you overclock them, the highest clock are all within 100 MHz.

Sandbo

引用:

原帖由 Puff 於 2017-3-9 03:00 發表

Had a game bound by single thread, and not interested in OC either. Thought OCing would disable many of the power mgmt features, wouldn't it?


Edit: It seems the idle states are still there.  ...

https://www.pcper.com/reviews/Pr ... utm_medium=facebook

The modern OC (not really sure about AMD, but for Intel Skylake at least) does not alter the power saving feature;
it will still be the same idle power (given you use an adaptive core voltage instead of a fixed one).

If you refer to my link, 1700/1800X are just the same.......AMD binned the chips by voltage needed, it had certain effects on overclocking ability, but from all I have seen so far, 1700 and 1800X do not show much of a difference on how fast they can be clocked to.
The worst maybe you need to lower the RAM clock to to like 2666 MHz for 1700 to stay at 3.9-4 GHz, but it changes nothing....

I probably will get a 1700, overclock it to 3.8 GHz, but later.

PS: If single thread performance is your major concern, KabyLake is definitely better.
In this case you might want to wait for Skylake-X, which (hopefully) will be having a more reasonable price without losing the single thread stuff.  


[ 本帖最後由 Sandbo 於 2017-3-9 06:51 編輯 ]

Sandbo

引用:

原帖由 tat0801 於 2017-2-28 12:30 發表

一定啦，今次AMD NDA 做得咁好？
INTEL 好似完全無預計過咁
精力去左做baseband想拎生果單

They will take back the lead with Skylake-X effortlessly; what they may have to compromise is just the price.

Sandbo

引用:

原帖由 Puff 於 2017-3-9 11:55 發表

That load power though.

This is even less than when I overclock my 6700k to 4.4GHz....... It's no big deal, if your cooler is better; the money you can save from 1700X is worth a very good water cooler.

And we are taking about 33% performance gain here, not the 10% Intel is sparing me.

[ 本帖最後由 Sandbo 於 2017-3-9 13:32 編輯 ]

Sandbo

引用:

原帖由 Puff 於 2017-3-8 23:39 發表
打算落搭 1700X
iMac 十世都唔出


過兩日落場睇吓有乜板同有冇貨先
唔記得之前 sandro 推果隻 modular 牛牛乜型號添

If you were referring to me, I always suggest Corsair RMx series (make sure you don't buy the old RM series).
I think they have the best performance given the price (not efficiency wise, but ripple performance).
650W: https://www.techpowerup.com/reviews/Corsair/RM650i/10.html
1000W: https://www.techpowerup.com/reviews/Corsair/RM1000x/9.html
*RMx and RMi use the same components and design, except for RMi can be connected to the PC for doing some monitoring.

But if you aim higher, now we have the best from Seasonic (and if I am right, they made their warranty 12 years long......while Corsair's still has 10)
https://www.techpowerup.com/reviews/Seasonic/Prime_750/6.html

[ 本帖最後由 Sandbo 於 2017-3-10 03:07 編輯 ]

Sandbo

引用:

原帖由 Puff 於 2017-3-10 03:02 發表

Yep, sorry for misremembering your username.
Leaning towards OC 1700 with B350, perhaps 3.7-3.8 GHz all cores. Just that the idea of burning more power when browsing web pages kinda bugs me. Not sure ...

A quick search gave me this:
https://www.bit-tech.net/hardwar ... zen-7-1700-review/6
On overclocking, the idle power does go up a bit, but it is just on par with 7700k's idle......far from being a worry.
While it seems every 1700 you can buy now overclock pretty well, there is no guarantee yours is going to be the same, just bare that in mind

*And I stand corrected - the max load power is higher than my 6700k overclocked to 4.4 GHz, but not by far.
With this it means you really would like a water cooler (some Corsair H80 or above) to proceed with clocking it at 4 GHz.

[ 本帖最後由 Sandbo 於 2017-3-10 08:22 編輯 ]

Sandbo

So it seems those available AM4 boards are already supporting ECC RAM to a certain extent:
https://www.reddit.com/r/Amd/com ... _and_other/def6vs2/

After some confirmation later I will probably upgrade my first gen Xeon E3-1235 to Ryzen 1700.

[ 本帖最後由 Sandbo 於 2017-3-10 11:32 編輯 ]

Sandbo

引用:

原帖由 Puff 於 2017-3-10 19:51 發表
https://forum.beyond3d.com/posts/1970348/
DF: 32B bi-directional @ memclk

Not knowing much about this, but there is a thread about the interconnect being the bottleneck for some cases:
https://www.reddit.com/r/Amd/com ... g_like_a_dual_4c8t/
It might not be a serious issue given the task is distributed smartly by the OS.

Sandbo

引用:

原帖由 qcmadness 於 2017-3-11 15:59 發表

The OS needs to be NUMA-aware to fully support Ryzen

It might end up locking everything to a single CCX and uses only four core that case, this isn't ideal.

There is a new article from PCProspective :
https://www.pcper.com/reviews/Pr ... utm_medium=facebook

They tested and claimed the Windows 10 scheduler wasn't to blame for swapping task among core, but I don't think it's very conclusive; people consistently found Windows 7 to perform better with Ryzen, there might be something else behind the OS.

[ 本帖最後由 Sandbo 於 2017-3-12 09:26 編輯 ]

Sandbo

引用:

原帖由 qcmadness 於 2017-3-11 23:35 發表

There are other claims that Windows 10 misreports the cache size for Ryzen CPUs

https://www.guru3d.com/news-stor ... back-amd-ryzen.html

Sandbo

引用:

原帖由 Puff 於 2017-3-12 17:16 發表
Things do seem kinda messy. The only thing which has correct readings is Ryzen Master. Even Windows reports a different operating frequency, and common tools like CoreTemp do not work at all. SpeedFan ...

Not really sure about the voltage, but from what I heard Ryzen tends to use a lot higher than the numbers you gave(PCPerspective applied 1.4V, and it went up to 7X degree C), however you may need a better cooler and mainboard to go any further.

But 3.7 GHz stable with only 55 C and just Noctua U12S is pretty good.
(My 6700k only got 4.4 GHz with 1.32 V(typical number for Skylake, even with NH-C14 and industrial 140mm 3000rpm, it can reach 82C with Prime95, though under normal load it's below 70C)

[ 本帖最後由 Sandbo 於 2017-3-12 23:35 編輯 ]

Sandbo

引用:

原帖由 Puff 於 2017-3-12 23:43 發表

The F/vt curve is significantly steeper beyond ~3.7 GHz as experienced by many.

PCPer targeted 4.0 GHz for the 1700. 3.9-4.1 GHz requiring at least 1.35V is kinda expected (mentioned by AMD too), es ...

Looks like 3.7 GHz is the sweet spot for 1700, at least for this batch.
With almost the same performance for $200 USD cheaper than 1800X, it kind of renders 1700X/1800X meaningless to get given how low cost and easy the overclocking can be achieved.