AMD Zen Summit Ridge Die says Hello
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Neo Cyrus
mohiuddin
schmidtbag
Rich_Guy
Going to challenge the i7 5960X ey :P
Solfaur
All my CPUs before my Intel E6750 Core Due were AMD, and everything after was Intel. I still have the Athlon 64 boxes (had 2 of those), not to mention the old K7s, K6s etc. So yeah, I truly hope they will make a comeback. Fingers crossed. 🙂
ender79
schmidtbag
http://www.extremetech.com/gaming/204523-new-leak-hints-at-amd-zens-architecture-organization
It seems they aren't called modules anymore, but it's still "module-like".
I meant more of a marketing mistake. Technically, AMD's design was superior. When you created software designed for Bulldozer, it was really fast. But the problem is the vast majority of software wasn't designed to work with AMD's module system. In some cases the octa core CPU would perform more like a quad core, because depending on the load, only half of each module could be utilized. AMD's design in theory was fantastic. If it were a fresh new architecture with a new OS and everything, it'd be very successful. It actually is still a decent architecture for some servers. But it otherwise wasn't all that practical.
The reason Intel didn't get screwed over by sharing an FPU is because a hyper-threaded core isn't necessarily "parallelized". It's basically just allowing 2 threads to work sequentially, so there are no wasted resources. That's why HT is sometimes known to actually slow down certain tasks, because sometimes processes are actually expecting to run things in parallel, but a hyper-threaded quad core CPU can't literally complete 8 threads simultaneously. Bulldozer was the exact opposite - it could only do things in parallel, so when you've got 8 separate tasks expecting to be run sequentially, you're really only taking advantage of 4 cores instead of 8. In Intel's case, what they did was more practical for everyday use, and therefore it won.
leszy
http://img.tomshardware.com/us/2000/11/20/intel/p3-diag.gif
http://images.anandtech.com/reviews/cpu/intel/core-vs-k8/CoreArchi.gif
Poor AMD. They don't know, that Jim Keller sold them their old architecture 😉
Anyway, it's interesting to compare Pentium III and Core Architectures.
leszy
Kaarme
If Zen gets relatively close to Intel's offerings per core, and the genuine 8-core chip costs as much as Intel's 4-core, it will certainly mean my current PC, built this March, is the lousiest PC I've ever built.
But even if it renders my new PC obsolete, I still hope Zen will blow everybody's socks off and AMD really gets back into business. Anything that hurts the stupid Intel is excellent and most welcome news. So far I could only enjoy reading about Intel's suffering in the mobile market.
cyclone3d
According to the slide, Summit ridge will have up to 8 "cores"
And according to Guru3d, which says each core will have 4 integer units and 4 FP units.. it looks like we could have up to 32 threads on one CPU.
That would be sweet!
-Tj-
Could be a potential beast after all..
Well 16threads sounds good, and if its 1.6x AMD FX single core perf. then it could be faster then Haswell/Skylake too. 🤓
sause: well not so good but still somethin
http://s33.postimg.org/vgor6huv3/AMD_Zen_Performance_Double_FX_83501.jpg
looncraz
The article says the front end can decode 4 ops/cycle, which may not be true.
Each of the four decoders can decode FastPath, which decodes into multiple ops. Most likely the average will be ~6 ops/cycle unless the decoders can only operate every other cycle.
It is quite likely that the connections to the decoders can only handle 6 ops/cycle - even if the decoders could actually decode 8~12 ops/cycle (absolute peak).
ender79
Kaarme
ender79
http://anandtech.com/bench/product/287?vs=698
Let me explain the picture and why I'm expecting that Zen should perform somewhere at a Sandybridge level.
First I7 2600k has 3.4 Ghz base clock and 3.8 Turbo at 95W .
FX 8320 has 3.5 Ghz base clock and 4.0 Turbo at 125W.
Even if I7 has lower clock is able to outperform the FX in pure speed (like cinebench render) in both single and multi-thread , but by 50% in single thread .
AMD says Zen will offer 1.5x performance per watt over bulldozer .
Well that 1.5x performance per watt will put it just around the older Sandybridge .
Don't understand me wrong, Sandybridge is still a good processor , between a Sandybridge and Skylake clock for clock is no more than 20% difference
looncraz
looncraz
http://excavator.looncraz.net/
I pretty much came to that same conclusion - after long expecting Haswell-like IPC. I based my expectations upon Excavator's performance and even created performance profiles and some process-derived benefits to create a very specific performance range.
Ryu5uzaku
eclap
Even if Zen comes with SB performance, with DDR4 and the latest chipsets and controllers it will still be a very viable option. I'm sure many have upgraded from SB not because Skylake or Haswell offer that much more performance but because of all the goodies you get when you upgrade to these modern chipsets.