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Haswell Overclocking Guide [With Statistics] - Page 1063

post #10621 of 19539
Quote:
Originally Posted by lilchronic View Post

maybe he was doing other stuff while stress testing, surfing the web or other things wink.gif

I was listening to music when i got ~21.07fps on two runs - best making sure you can hit higher for at least one run to see stuff's working right IMO! 22fps should be hittable with 4.7, maybe 21.5 if that doesn't work out. I don't think RAM has that much effect? The scores are kinda tightly bunched together, i saw a lot more variance if i was loading cpu in other ways while benching
Quote:
Originally Posted by angelotti View Post

HT off or different version of x264
I am ~ 40% faster with the latest version (2389) vs. the one i had before (don't remember version number)

HT would hurt performance a lot more (it's a ~1.15x gain here). Possible out of date encoder version, if that's the case then both suboptimal performance and worse stability testing. Worth pointing out i think thumb.gif
Edited by Cyro999 - 3/2/14 at 10:40am
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post #10622 of 19539
Quote:
Originally Posted by angelotti View Post

Those are called ‘COMERCIAL REVIEWS’ ..good luck getting anywhere with those.
That is how i started, on “tech” sites “reviewing” haswell, and they all say you can get 4.2 with no change to the voltage on pretty much all of them, and 4.6 should be easily achieved with 1.2V, AND cache should be 100/200 MHz under the core multiplier ...etc.
It’s all milk & sugar according to these “tech sites”. And it ought to be, since major tech companies throw lots of free “goods” to them that they get to keep or sell.
In fact, if you go to this guy’s forum you’ll come across this OC guide (nice and long to keep ads revenues high), where the guy practically begs for the big tech companies to notice him and send him ‘goodies’ to “review” ( http://linustechtips.com/main/topic/41234-intel-haswell-4670k-4770k-overclocking-guide/ )

I enjoy Linus's videos and infact did watch that video to get a basic idea since i too am using the M6F (i know hes using the M6E), anyways I didn't watch the video and settle for that basic knowledge after all thats why im a member here because I (and most of us here) LONG for more knowledge and understanding of our dear hobby.
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post #10623 of 19539
Quote:
Originally Posted by angelotti View Post

In the first video on that OC guide:
first begging - minute 6:29
second begging - minute 7:07
third begging - minute 10:46
there might be more but i won't bother with it...

Also, the fact he is using IBT as a stress test ONLY, kinda plays well into the "milk & sugar" notion. I can pass IBT stress test at 4.3 with 1.285V but need 1.31 for x264 and i will never know how
much i need for prime or linpack until i delid or build a custom loop.
I watched those videos in full about 2 moths ago, so even if he mentions other stress tools he still uses IBT for his (maybe aida too ?!?).
I'm not saying the guy doesn't know how to OC, only that for the scope of his guide,he leaves out some of the 'nasty' stuff that some people will encounter thus making it sound better (milk and
sugar).

hahaha. I also don't like that dude as he is begging to much. Ag shame don't bully the noob.
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post #10624 of 19539
guess i must have the older version?



Edited by lilchronic - 3/2/14 at 10:59am
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post #10625 of 19539
Quote:
Originally Posted by lilchronic View Post

guess i must have the older version?



I am (and others should) using the x264 package in OP, with new encoder version taken from here: http://download.videolan.org/pub/videolan/x264/binaries/win64/

dropped into the folder, and renamed to replace the x264-64 that was there. That gives ~21.0 - 21.1fps @4.5, 4.0 uncore, HT on with my sammy RAM @2200 9-10-12-20, 104tRFC on version 2389. It's also a massive pain in the butt to stabilize now, more than before. Doesn't seem to take with my 4.6+ht unless i add like 0.08vcore over 4.5.. If there's any way to reduce that btw, i'd like to know biggrin.gif
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post #10626 of 19539
Quote:
Originally Posted by Jolly View Post

I've got a question though. I've manually set uncore to 34x, but HWinfo still shows 3800 for some reson. Could it be bad reading?

It's a Gigabyte thing, if you leave it at stock (34x for 4670 and 35x for 4770) it'll boost up under load. The only way to stop it is to set it to something else, like 33x or 36x, but then it won't drop to 8x at idle. If it works boosting to 38x, I'd just leave it alone.
post #10627 of 19539
Quote:
Originally Posted by Forceman View Post

It's a Gigabyte thing, if you leave it at stock (34x for 4670 and 35x for 4770) it'll boost up under load. The only way to stop it is to set it to something else, like 33x or 36x, but then it won't drop to 8x at idle. If it works boosting to 38x, I'd just leave it alone.

Damn, and I thought Gigabyte makes a decent boards hmmsmiley02.gif
post #10628 of 19539
Quote:
Originally Posted by Jolly View Post

Damn, and I thought Gigabyte makes a decent boards hmmsmiley02.gif
their boards are still high quality and seeing as how you have to mess with uncore to get a better clock i fail to see the problem.
post #10629 of 19539
Quote:
Originally Posted by Cyro999 View Post

I am (and others should) using the x264 package in OP, with new encoder version taken from here: http://download.videolan.org/pub/videolan/x264/binaries/win64/

dropped into the folder, and renamed to replace the x264-64 that was there. That gives ~21.0 - 21.1fps @4.5, 4.0 uncore, HT on with my sammy RAM @2200 9-10-12-20, 104tRFC on version 2389. It's also a massive pain in the butt to stabilize now, more than before. Doesn't seem to take with my 4.6+ht unless i add like 0.08vcore over 4.5.. If there's any way to reduce that btw, i'd like to know biggrin.gif

The x264 benchmark/stability test needs major rework, not just updated executables.
The video file included in the test is major crap in terms of quality. When one executes the test's batch file, a presentation is displayed claiming it's going to encode a full HD 20Mb/s video file.
The video in question is only 1920x656 plus black bars at 6.8Mb/s (not 20), it is also sharp and quite pixelated in places. In order to stress the CPU as much as possible, you need a very complex source, with high quality grain (not sharp like disney toons), lots of details and motion.
Here is a test i've done. Downloaded a 20Mb/s trailer and encoded it through megui along with the included video. Both encodes resulted in smaller size output.
Important MeGUI settings CQ:18, preset - medium, profile - high, B-frames - 3, ref frames - 5, adaptive B-frames optimal, ME range - 24, ME algorithm - multi hex, subpixel - 10 qp-rd, macroblocks - all.
These are typical settings for a quality output, but i could go allot further with things like: preset - placebo, me algorithm - exhaustive or subpixel - full RD, etc.
The test:
Code:
Video                              trailer                    included 1080p
size (MB)                 353 (321 output)        101 (80 output)
source quality             20Mb/s                      6.8Mb/s             - the included video is 194% lower in quality
length                             2:27                              2:03                 - the included video is ~ 20% shorter
pixels                         1757184                       1259520             - the included video has ~39% less pixels (i removed the black bars)
frames                          3525                              2953                 - the included video has 19% less frames
fps                                     6                                  12.8                - the trailer's frame rate was 213% lower
time                                582                                230                  - the trailer took 253% more time to encode

So from the 20/39/19% that the included video is less in length/pixels/frames you could expect it to encode about 25% faster, but from those 213/253% in FPS and time, you can see that the trailer didn't take 25% but approx 233% longer. And this is all down to the quality of the source and the analysis of it and not so much the output.
If the x264 is to be an efficient real world stress test, then it needs some updating.

I hope i didn't look like a troll with this post.
Edited by angelotti - 3/2/14 at 4:42pm
post #10630 of 19539
It's weird - I've tried using the newest x264, but it literally just skips Pass 2 entirely now.
Very strange.

Put the old encoder back, works like normal.
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