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[OC3D] AMD's Zen will have a "greater than 40%" IPC improvement over Excavator, says Lisa Su - Page 79

post #781 of 841
Quote:
Performance hit at the ultrafast preset on x264 is usually pretty low. Depends on game and encoder quality settings (I normally use qp=15, which is about 100 megabit at 1440p30 depending on game and very close to perceptibly lossless) and usually see sub 20% frame rate loss. If I knock it down to qp=17-18 which is pretty close to the quality what I get with 50Mbps Shadowplay, frame rate hit is sub-10%, which is pretty comparable to what I see on my GTX 780, and quite a bit less than what I've ever seen with VCE (though I've never used VCE on Tonga or Fiji).

The Maxwell NVENC is twice as fast and that's only the beginning
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post #782 of 841
Quote:
Originally Posted by Echoa View Post


1240v3 is essentially the same thing as and i7-3770, but running 100MHz (~3%) slower.

Comparison vs. an eight-core Piledriver: http://www.anandtech.com/bench/product/697?vs=551

you mean 4770? mine is haswell and i have mine at 4770 stock speeds of 3.5/3.9 turbo but all locked at max turbo, and Im coming from an 8120 which is Bulldozer not pildriver

im not sure what youre proving? lol (also i like reading reviews so Ive seen the numbers smile.gif ) I agreed with you that more cores matters and i didnt say it was a moot point entirely xP, i agreed that in your example case it matters but youre also not an example of the majority of users/gamers who in my experience dont care about x264 encoding or even know what it is sometimes. Using anyone on OCN as a general use case just doesnt work as most people here are power users and rep for maybe 5% to maybe 10% of users and their usage.

On topic of Zen which is the thread topic, I dont see it being entirely impossible that AMD makes the claim of 40% but i have my doubts due to recent years. Jim Keller helping out on this one though they might just pull a rabbit out of a hat and become far more competitive again. I wont hold my breath but everything we've heard and found so far makes me hopeful that we might see haswell level performance at the least. I have a friend waiting for Zen to come out to upgrade her rig so when it shows and if it makes the mark ill definitely be putting it through some tests of my own. AMD CPU dept has been a big let down and its scary to think that if they continue on the path theyre going we just might see a Intel/Nvidia monopoly. GPU wise theyve met all my expectations but they just need more market share and the whole company needs to actually market (but that costs money)
Edited by Echoa - 3/3/16 at 11:24am
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post #783 of 841
Quote:
Originally Posted by Echoa View Post

you mean 4770?

Yes.
Quote:
Originally Posted by Echoa View Post

the majority of users/gamers who in my experience dont care about x264 encoding or even know what it is sometimes.

The majority of users don't know what a CPU is and could randomly select one in their price range from Newegg or Amazon, have someone build a system around it, and be perfectly content.

However, the majority isn't the driving force behind perceptions and purchases. They tend to follow trends set by performance users, enthusiasts, and other experts. For every CPU I buy to fill a quantifiable need, there are twenty people who buy a CPU on nothing more than my recommendation, even if they couldn't tell the difference between it and it's competitors in day to day use (even after I point this out to them).
Quote:
Originally Posted by Echoa View Post

On topic of Zen which is the thread topic, I dont see it being entirely impossible that AMD makes the claim of 40% but i have my doubts due to recent years. Jim Keller helping out on this one though they might just pull a rabbit out of a hat and become far more competitive again. I wont hold my breath but everything we've heard and found so far makes me hopeful that we might see haswell level performance at the least. I have a friend waiting for Zen to come out to upgrade her rig so when it shows and if it makes the mark ill definitely be putting it through some tests of my own. AMD CPU dept has been a big let down and its scary to think that if they continue on the path theyre going we just might see a Intel/Nvidia monopoly. GPU wise theyve met all my expectations but they just need more market share and the whole company needs to actually market (but that costs money)

I would not be the least bit surprised to see Zen achieve the claimed IPC increase over Piledriver/Steamroller. However, that doesn't really say much of anything with so many other unknowns at this point.
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post #784 of 841
Quote:
Originally Posted by The-Beast View Post

I'm certainly not seeing it and considering the glut of people still using sandy bridge they probably aren't seeing it either.

http://www.anandtech.com/show/9483/intel-skylake-review-6700k-6600k-ddr4-ddr3-ipc-6th-generation/9

It's a function of my use of established statistical methods rather than the standard mean (I remove performance outliers). However, even that article's limited benchmark assembly shows the overall end performance that I see (the end performance is what really matters, more so than the an offset from a previous reference point).

Dolphin is a Haswell outlier, and 3dPM & 7-Zip are Skylake outliers. Removing those, Skylake has a ~9% IPC improvement over Haswell, as does Haswell over Ivy Bridge.

I use the method I do because it helps to hide any unusual single-benchmark benefits, or any unusual single-scenario performance deficits. That is important when comparing disparate architectures, which is the intended use for my data.
post #785 of 841
Quote:
Originally Posted by Fyrwulf View Post

That's great. Does anybody actually do video encoding outside of a professional environment where they have no say in the hardware used?

I encode my entire DVD collection and store them directly on my HTPC for easy viewing. Much better than hunting down one of my hundreds of DVDs, even though they're organized by genre. TV shows are even more important, so I can just watch episodes at random.

My old FX-8350 worked better than the i5-2500k I used to replace it, and I had parity at ~5GHz. I then upgraded to an i7- 2600k, which just blew it away, even at 4.5Ghz. I'm looking forward to upgrading to Zen partly for my encoding needs, but also my development needs. But I won't have the main program which will need a boost in performance ready until mid or late 2017, at the earliest, due to data blockades (climate researchers are very tight-fisted with their data, and they only give you pre-adjusted data... very frustrating).
post #786 of 841
Quote:
Originally Posted by looncraz View Post

It's a function of my use of established statistical methods rather than the standard mean (I remove performance outliers). However, even that article's limited benchmark assembly shows the overall end performance that I see (the end performance is what really matters, more so than the an offset from a previous reference point).

Dolphin is a Haswell outlier, and 3dPM & 7-Zip are Skylake outliers. Removing those, Skylake has a ~9% IPC improvement over Haswell, as does Haswell over Ivy Bridge.

I use the method I do because it helps to hide any unusual single-benchmark benefits, or any unusual single-scenario performance deficits. That is important when comparing disparate architectures, which is the intended use for my data.

You seem to be forgetting about Broadwell when averaging ipc increments of each intel generations. Two years passed after the release of haswell until skylake was released. If you count Broadwell in, even if it didn't offer any increase, you get one more generation to average the total ipc increase of skylake over penryn. 9% in two years is really a slowdown compared to previous generations, isn't it?
post #787 of 841
Quote:
Originally Posted by Blameless View Post

Not sure what you are talking about here.

Core 2 was pretty much universally superior to the Athlon 64s, X2s, and pretty much any AMD part until the Phenom IIs.

I went from a heavily OCed Opteron 170 at ~3GHz (which was barely any slower than the later Athlon X2 6000+ Brisbane) to a $70 Pentium E 2140 at 3.2GHz (a stable 100% OC on the stock cooler) and was blown away by the difference, with the Pentium (which was a Core 2 duo with one quarter the L2 cache) being about 20% faster in most areas.

Not everything is about pure performance - features come into play for longevity. Particularly virtualization features, which AMD included across their entire lineup, whereas Intel charged a premium.
post #788 of 841
Quote:
Originally Posted by Petykemano View Post

You seem to be forgetting about Broadwell when averaging ipc increments of each intel generations. Two years passed after the release of haswell until skylake was released. If you count Broadwell in, even if it didn't offer any increase, you get one more generation to average the total ipc increase of skylake over penryn. 9% in two years is really a slowdown compared to previous generations, isn't it?

I'm not so interested in every generation so much as performance check-pointing, but Broadwell is basically just a shrink of Haswell using some updated graphics tech and some updated microcode (to add ADX, RDSEED, and even some of AMD's 3DNow! prefetch instructions, IIRC).
post #789 of 841
Huh. Well, I don't own any disks to encode (in fact, the comp I'm building now won't have any disk readers) and I don't have the ego to think that anybody wants to watch what I play.
post #790 of 841
Quote:
Originally Posted by looncraz View Post

Not everything is about pure performance - features come into play for longevity. Particularly virtualization features, which AMD included across their entire lineup, whereas Intel charged a premium.

This is true, but warpuck seem to be mostly referring to performance (what else would stop any post x86-64 system from running a modern OS smoothly?) and, once certain basic instruction sets are accounted for, raw performance is the only factor that is going determine the longevity of most CPUs for most consumers.
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