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Confused on Lucid, etc features

post #1 of 10
Thread Starter 
I just got an i5 3570k (god damn crucials out of stock, so gotta get ram and psu still...) and sold off my AMD sig rig.

edit: sorry I have a Z77 UD3h as well.

I'm a bit confused on the features, I've done hours of searching and still don't understand anything at all about the following, except that they're largely useless (but what small part is useful?).

1. Quicksync. I still don't really get it. People say it has something to do with streaming and such, or capturing video... Well I stream starcraft2 via h263 through programs like Xsplit, OBS, FFsplit, to twitch and justin, that kind of thing. I also create youtube videos (not a huge deal). I've talked to the creators of OBS and they said no plans to implement quicksync, but I still don't really get it. I also use a gtx 460 (or will), and quicksync doesnt work if you use a gpu? im so confused on this.

2. Lucid. ***. So is this a power saving thing, switching to igpu when im doing light load stuff (dont you disable igpu because it interferes with overclocking? Cant you overclock the igpu?)? What about for multiple monitors, could I use Lucid to run my main monitor off my gtx 460, and then a 2nd monitor off the igpu (i know i can run 2 monitors off my gpu, but wouldnt that be even better?)?

doesnt lucid do something in regards to streaming? or capture, or encoding or something? I get a little confused on these terms and stuff... (streaming is h264 codec, but capture is grabbing the screen to be encoded... so amd cpus, for example, are better at h264 performance, but that doesnt mean anything because capture is a huge performance hit and the real bottleneck in streaming, and since that's software/unavoidable, the real increase in streaming performance is whatever cpu games better, ie intel - as i understand it).

Thanks. I've searched, i've read every article. Still confused. It's hard to read between haters, old posts, and hype from years ago or the possibilities of what lucid might do, etc.
Edited by Belial - 1/14/13 at 4:28pm
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post #2 of 10
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post #3 of 10
There is a YouTube vid that explains it fairly well. But I'll take a stab at this and try and help you. The way quicksync works from my understanding is that for transcoding in post sandy intel chips the igpu is much faster than even say a gtx590. So I'll give u an example of how I use it and see if it helps. First off I can recode a mkv to a mp4 using my gpu takes me 40 mins with my 560ti to incode a 12gb blue ray file. No with my 2500k using quicksync it takes only 15minutes to do the same file. Lucid is entirely dependent on which output u populate. If u populate the mobo monitor output the igpu will be the primary display device . Meaning when u enter a dx11 title like bf3 or skyrim it turns on the dedicAted card in my case my 560ti. Now if I were to populate my 560ti as my display output then it would stay on all the time and the igpu would activate when I use a program that supports quicksync so to have faster transcoding via the intel igpu. Hope tht helps
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post #4 of 10
Thread Starter 
So quicksync is not about encoding/streaming/capture, it's about transcoding stuff to bluray? I did talk to the people at OBS, they said they had no plans to implement it, but i think xsplit might be working on it (will still probably be a long time).

I was thinking of putting my main monitor on dgpu, and second monitor for igpu.

thanks for your explanation, ill check out vids on both of them.
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post #5 of 10
quicksync works with encoding as well but it primarily deals with transcoding
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post #6 of 10
quicksync doesn't have anything to do with gaming or streaming. quicksync isn't even a part of lucid virtu. quicksync is intel's version of nvidia cuda.

lucid virtu is only for intel z68 and z77 chipset, it enables you to switch from integrated graphics of the cpu, to your discreet graphics, and vice versa, without needing to change where you video cable is plugged in.

why do you want to switch around from the dedicated GPU to integrated? because intel's integrated gpu have quicksync.
post #7 of 10
Not to blu ray from blu ray and so far you have to buy a program that uses it, quick sync or use the Nvidia cuda enabled if you want accelerated encoding/transcoding. I'm not sure but igpu doesn't allow for first and second monitors in the fashion your may be thinking. If you are connected to it your using it as primary gpu. With virtu it will ,for lack of better explanation, slave your dedicated to the igpu and use it for horse power to display the game you may be playing. If you chose to SLI Virtu will not allow for that.You have to disable it completely for SLI to work..At least it did for my setup. the -i -d connections are odd and it will explain it when you connect your monitor and you pull up the software. You MB instruction should have better information in it about these things. Having used it as both I would rather save my money on programs use handbrake to encode and leave to accelerated encoding for others to use... I'm cheap. Blu rays only take 4hrs to encode anyway. My pc is on most nights so I run it that way. I've not read that Igpu interferes with OC. though for that part of the chip to be working it will be generating heat. With a stock cooler and an oc that extra heat may cause interference. Yes, Lucid is a power saving thing. It uses integrated GFX, igpu, till you need moar power. Hope we have confused you more. Let us know smile.gif
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post #8 of 10
Thread Starter 
Yea I'm aware that Quicksync and Lucid are 2 totally separate things. They both seem similar... they deal with the igpu, at least, something to do with transcoding/encodingetc....

Sorry, to be clear, I got a GA Z77 UD3H. If you saw my banter about p67/z68, well, the MC $40 bundle deal made such a discussion irrelevant. Maybe p67/z68 is worth it but the MC deal made the discussion irrelevant and all it's a rather frustrating topic of conversation. As I understand it now, Z77 is not better than p67/z68, but it's newer - ie, 2008 Civic is not 'better' than a 2006 Civic, but it's a little bit updated. If the 2006 is much cheaper, you get that instead, but the 2008, if same price, of course, you get that instead.

I also was never told, but figured out, that the z77 overclocks RAM better.
Quote:
why do you want to switch around from the dedicated GPU to integrated? because intel's integrated gpu have quicksync.

Isnt there something about energy savings though? I mean... i guess we at OCN dont care about that kind of thing... but couldnt I use lucid to use 2 monitors better than hooking up 2 monitors to a single GPU?
Quote:
Not to blu ray from blu ray and so far you have to buy a program that uses it, quick sync or use the Nvidia cuda enabled if you want accelerated encoding/transcoding. I'm not sure but igpu doesn't allow for first and second monitors in the fashion your may be thinking. If you are connected to it your using it as primary gpu. With virtu it will ,for lack of better explanation, slave your dedicated to the igpu and use it for horse power to display the game you may be playing. If you chose to SLI Virtu will not allow for that.You have to disable it completely for SLI to work..At least it did for my setup. the -i -d connections are odd and it will explain it when you connect your monitor and you pull up the software. You MB instruction should have better information in it about these things. Having used it as both I would rather save my money on programs use handbrake to encode and leave to accelerated encoding for others to use... I'm cheap. Blu rays only take 4hrs to encode anyway. My pc is on most nights so I run it that way. I've not read that Igpu interferes with OC. though for that part of the chip to be working it will be generating heat. With a stock cooler and an oc that extra heat may cause interference. Yes, Lucid is a power saving thing. It uses integrated GFX, igpu, till you need moar power. Hope we have confused you more. Let us know

so... most people use quicksync to pirate stuff? How is an igpu better than a dgpu for that?

I wont be using SLI.

So Lucid is mainly to plug into the mobo, and basically switch from igpu/dgpu, for energy saving (or quicksync usage). That sounds great, right? Why should I not use that? Does it hurt performance in any way?

As for quicksync, I get it, it's for ripping blu-rays, that's all. And most of us who are ripping blu rays... we do it overnight so we dont care how fast it is? Im a bit confused on that one... im a bit confused how the igpu would be better than a dgpu for that too (or is quicksync worse than cuda? i have no idea what cuda is....).

Motherboard manual explains it all in marketspeak and how awesome it is but doesnt really explain it.
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post #9 of 10
This is the simple way I look at it - were I to use lucid, which I don't as it's fairly useless.

1) you use it and put your monitor to the iGPU, you're now able to use quicksync etc etc while all your 3D games etc will still use dGPU - but there is a ~3% performance hit (that's just what I saw, very little to worry about either way).

2) you use it and put your monitor to the dGPU, you're now using it's dumb abilities to supposedly give you better performance in games - all BS. Some games don't even work/start and or take a huge performance hit (2 that I remember .. BF3 and AC2). Doesn't work in SLI.

I would not use quicksynck to transcode etc any BDs as there is a quality hit but I would use it to to change format from say your phone video capture to something else (ie: youtube). It is much faster and at those resolutions there is no quality hit.

I've used MediaEspresso in the past for this but there are others.
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post #10 of 10
Thread Starter 
oh so quicksync is to transcode/rip blurays while your playing games with the main gpu, and lucid (which im aware is totally different), can be used so as to hook up both igpu/dgpu to one system.;..

and so quicksync is used for like throwing up videos to things, like youtube or sharing videos from one format to another...

ill just disable quick sync, mvp, and igpu :X
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