2500-K or 2600 (non K) for rendeing?

Marton wrote on 2/14/2012, 3:45 AM

Hi
If i don't want to overclock which CPU is better for Vegas11 rendering? (Avchd, 3D MVC, etc)
Hyperthreading can make a huge difference in Vegas? Is it optzimized for that? Will i see all 8 thread often at 100%?
thx

Comments

Hulk wrote on 2/14/2012, 8:16 AM

If you don't want to overclock then it's easy. The 2600 is 100MHz faster than the 2500 (k or otherwise) and has hyperthreading.

But if you did want to overclock then you can make the 2500k faster than the 2600 even taking HT into account. My 2500k at 4.2GHz will beat any stock 2600 in pretty much any application.

I don't have a 2600 so I can't comment on processor loading.

Marton wrote on 2/14/2012, 10:02 AM

thanks
I don't want and i can't overclock because i plan to buy a H67 board that support IGP and Quicksync.

diverG wrote on 2/14/2012, 11:30 AM

@ Hulk

Out of interest what cooling are you using on your 2500K?

Geoff

farss wrote on 2/14/2012, 3:29 PM

"I don't want and i can't overclock because i plan to buy a H67 board that support IGP and Quicksync"
Why do you want integrated graphics?
Quicksync style encoding / decoding is available on most dedicated graphics cards anyway. Vegas makes no use of any of this.

Bob.

Marton wrote on 2/15/2012, 12:16 AM

None of the dedicated vga card support the lightning fast Quick Sync encoding. Cuda is even worse in quality in some application.
And yes, i know that Vegas don't support QS yet, but i hope in the future it will, because Canopus/Cyberlink/Adobe can for example...
And i also can use frameserving from vegas and use a standalone encoder which support QS.

PeterDuke wrote on 2/15/2012, 1:12 AM

I have 4 core CPU with HT giving 8 virtual cores. During rendering Sony AVCHD all 8 "cores" are used with about 70% totla usage. With Mainconcept Blu-ray it is about 90%.

Marton wrote on 2/15/2012, 1:36 AM

thank you Peter!
So it sounds HT worth the price.

Wolfgang S. wrote on 2/15/2012, 7:09 AM

You can also use a Z68 board that supports quicksync - that can be overclocked with a 2600K to 4.2 Ghz too. I see no reason why it should not be possible to overclock and run quicksync?

Marton wrote on 2/15/2012, 7:16 AM

It is possible of course, but i want to stay in the safe side,
this will be my main working machine, so no overclock.

Wolfgang S. wrote on 2/15/2012, 11:15 AM

My overclocked 2600K system is stable - and that is my working machine too. The advantage in speed is something that should not been overseen.

Beside that it is your decision if you overclock or not - BUT I would like to have the opportunity. You save the profiles in the BIOS with and without overclocking and take whatever is fine.

Marton wrote on 2/15/2012, 11:31 AM

Yes, i think you tested with many utility your system, and it was always stable-stable-stable for many month. But what about when just once in the future some minor computing error occurs because of overclocking when you work on big project. And you lost some important data, maybe bad data writing to the harddisk system area/boot area. I don't know. You'l loose many days of work.
To me it seems with an i7-2600 i can live for years at stock speed.
Calmness is more important than 20-25% speed increase.

So at stock speed i7-2600 is always faster than 2500k?
I just readed somewhere that hyperthreading sometimes slowdows program which is not optimized for it. I hope Vegas is not such a software.

thanks

Wolfgang S. wrote on 2/15/2012, 1:10 PM

What if Vegas crashes and you loose your project? That is more likely compared then a crash of overclocking at the moment. What if you have a defect file? What if....

I think you have to be aware that EVERY technical system has some limitations in terms of security. The best protection is not to avoid a feature like overclocking, but the best protection is to have actual images of your system, and backup of important projects.

But it is your decision anyway - have fun.

Marton wrote on 2/15/2012, 2:37 PM

Yes, you are right, there are many possibilities for errors.
We have to try minimize those.

Hulk wrote on 2/15/2012, 10:15 PM

@diverG

Noctua NH-U12P SE2
Fan on low and temps will hit 60C max. Totally silent rig. Fanless power supply and the second Noctua fan that comes with the CPU cooler on the case, also on low. I do audio work so I need a silent system.