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

i thought the difference was the x370 boards could do crossfire 16x 16x and the b350 could still do crossfire but only 8x 8x, but i could have read it wrong
 
old gamer said:
i thought the difference was the x370 boards could do crossfire 16x 16x and the b350 could still do crossfire but only 8x 8x, but i could have read it wrong
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No I was just speculating based on the PCIe discussion, AMDs' slides show 16x/16x isn't available on any of the chipsets. Whether it can be crowbarred in by motherboard manufacturers, I don't know.
 
Is XFire going to have the same issues as SLI? It seems to becoming less and less of an interest to devs and I'm assuming XFire will be the same... i.e if a game is broken in SLI, it likely will be with XFire also?
 
Legend said:
Is XFire going to have the same issues as SLI? It seems to becoming less and less of an interest to devs and I'm assuming XFire will be the same... i.e if a game is broken in SLI, it likely will be with XFire also?
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It's sometimes one of the other or both. Differs from game to game.
 
LoadsaMoney said:
AMD Ryzen 7 1800X, 1700X & 1700 February 28 Launch Confirmed – Available Now For Pre-Order At €499, €389 & €319

http://wccftech.com/amd-ryzen-7-1800x-1700x-1700/
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If you read the thread on Reddit that WTFtech plaguarized (who stole it from Videocardz i think lol) someone compared their prices to another EU retailer, and they found that Centralpoint retailer was a little higher than the competition on CPU prices, so while those prices are infact genuine listings for a Belgium retailer, they may not be the cheapest around.

Makes sense too as they are probably the first listing in the EU, can imagine they will get a ton of pre-orders from people taking a gamble or already sold on the leaks lol, so might as well rinse a few extra euros while they can before the real info comes out, the chips are shown to be damn good and suddenly everyone is selling them and potentially trying to undercut each other, especially if there is mass volume to sell.
 
Enjoy :)

AMD-Ryzen-CPU-3DMark-Physics.png
 
nashathedog said:
As in no 16gb sticks or can you use a pair 16 gb sticks on there own.

I just googled it and came up with this which states up to 64 gb's so your okay. :)

Source:
www.pcgamer.com/amd-ryzen-details-and-expectations/
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That statement is just based on the currently available DIMMs topping kit at 16GB for non-ECC DDR4. If and when 32GB DIMMs come out, there will be bios updates enabling support.
 
The leaked PassMark scores that PC Gamer has published are very interesting:

Individually, Ryzen 3.4GHz makes a good showing in many of the tests, with particularly strong Integer, Floating Point, and Encryption scores. On the other hand, the Prime Numbers, SSE, and Physics results are less promising. Single-threaded performance puts per-core performance right in line with Intel, provided clockspeed is the same.
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Some are very disappointing, e.g. Physics (assuming all threads are being used):

JXNqzW7QXXQMyqKnKBziBU-650-80.png


Most of them are incredible though - particularly the Integer and Floating Point Maths benchmarks. The single-threaded benchmark has Ryzen come out on top of Kaby Lake clock-for-clock (but only just):

KdbkN7Q6GH2igMvrUjauFU-650-80.png
 
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DragonQ said:
The leaked PassMark scores that PC Gamer has published are very interesting:


Some are very disappointing, assuming all threads are being used (e.g. Physics), some are incredible (e.g. Integer and Floating Point Maths). The single-threaded benchmark has Ryzen come out on top of Kaby Lake clock-for-clock (but only just).
Click to expand...

The only thing in all of those slides that looks bad are 'Prime Numbers', no idea if i'm honest why or how that could effect real world performance, Physics, well i don't know, 3DMark Physics completely contradicts it.

Performance in everything else.... fantastic! Integer math is unreal....
 
tyler_jrb said:
Let's just hope it's worth the £500. Not quite as fast as a 6900k? But £600 cheaper is certainly something special.
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The 3.4Ghz is the base clock on the cheapest 8 core, which is going to be ~£300, the most expensive chip has 4Ghz turbo before XFR and that is the one that will be ~£500 from what it seems. So £300 and not quite as fast as a 6900k, at £800 cheaper ;)

The real question might be, with AMD having a long history of unlockable CPUs and GPUs.... how epic would a £150-200 either 4 or 6 core chip be if you could unlock the cores and enable XFR.
 
humbug said:
The only thing in all of those slides that looks bad are 'Prime Numbers', no idea if i'm honest why or how that could effect real world performance, Physics, well i don't know, 3DMark Physics completely contradicts it.

Performance in everything else.... fantastic! Integer math is unreal....
Click to expand...

If you look at Anand Forums, a guy dome some testing on those Passmark tests that the Ryzen was weak in and concluded that Mem was the issue, he done various tests with different mem speeds and basically better timings is a boost for Ram in those tests, higher frequency also helps but the timings are important, basically what i took from it is if you can get say 3200mhz ram thats say running CAS15 and maybe drop it to 3000mhz and possibly tighten the timings up you may see a better boost.

Those Ryzen tests were done on 2400mhz mem with rubbish timings by all accounts.

Thread added for reference https://forums.anandtech.com/threads/summit-ridge-zen-benchmarks.2482739/page-219
 
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