Heavy Load - Printable Version

Heavy Load - Printable Version

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Pages: 1 2

Heavy Load - popy - 2008-12-16

Hello Community.

I have successfully assambled and set up my HTPC with the following Konfiguration:

AMD 4850e 2x 2,5GHz
MSI 7269 K9N Neo-F V2 Mainboard
Radeon 2400 HD
2x 1Gb DDR-2 800
...

XBMC runs fine but if i play a 1080p Movie, sometimes i am losing frames.

After a look in the Taskmanager ill know why: my cpu load is at 90% Shocked

Doas i habe a wrong configuration or a config problem?

Thanks
pOpY

- nekrosoft13 - 2008-12-16

nothing is wrong, you simply need a quad to playback high bitrate 1080p content, i learned that my self when i build an AMD 5600+ system for XBMC.

playback of VC1 lower bitrate was fine, when high bitrate H264 content was used it would drop frames and cause audio sync issues.

- popy - 2008-12-16

That's something I've almost thought ;-(

Thanks for the information.

What AMD Quad CPU you have chosen?

I tend to: "AMD Phenom X4 9550 + Socket-AM2 boxed, 4x 2.20GHz, 4x 512kB Cache"

Is the power of enougth?
The CPU has only a TDP of 95.0 W

Thank you
popy

- althekiller - 2008-12-16

nekrosoft13 Wrote:nothing is wrong, you simply need a quad to playback high bitrate 1080p content, i learned that my self when i build an AMD 5600+ system for XBMC.

playback of VC1 lower bitrate was fine, when high bitrate H264 content was used it would drop frames and cause audio sync issues.

QUIT! lying to our users, you in no way shape or form need a quadcore to decode 1080p. XBMC will use no more than 2 cores to decode at this point so the remaining cores are USELESS.

- popy - 2008-12-16

@althekiller: which X2 AMD CPU should ill use to speed up 1080p decoding (and decrease the cpu load)?

Thanks that you prevent me from buying a expensive X4 CPU!

cu
pOpY

- popy - 2008-12-16

My Mainboard also supports a:

"AMD Athlon 64 X2 6000+ 65nm Sockel-AM2 boxed, 2x 3.10GHz "

Is this enougth for decding high quality 1080p h264 files?

Thanks
pOpY

- althekiller - 2008-12-16

I know nothing of AMD's offerings other than they are lacking significantly to Intel's. The Intel c2d e8400 can play most anything you throw at it no problem. Note that due to architectural advantages that an AMD CPU with the same freq/bus clk/cache size will NOT perform as well.

- nekrosoft13 - 2008-12-16

althekiller Wrote:I know nothing of AMD's offerings other than they are lacking significantly to Intel's. The Intel c2d e8400 can play most anything you throw at it no problem. Note that due to architectural advantages that an AMD CPU with the same freq/bus clk/cache size will NOT perform as well.

you got that line correct,you can't claim that amd system doesn't need quad since don't know anything about amd offerings. AMD Dual core 5600+ Overclocked to 2.9 will not playback high bitrate H264 files.

Since he is building AMD system C2D won't help anything.

and yes popy, I have 9550+ and it plays 1080P fine. AMD 5600+ didn't

also on ATI 780G based board.

- popy - 2008-12-16

Thanks for your help.

I couldnt use an 9550+ since i used an older MSI board (look at first post) that wont support phenom cpus ;-(

The highest CPU ill found is the 6000+ that is listed on the MSI site:

http://global.msi.com.tw/index.php?func=prodcpu2&prod_no=1243&maincat_no=1#menu

I have bougth me that board since it was cheap. Ill never realized that ill must have such a powerfull cpu to watch HD content with XBMC.

Does anybody of you have the 6000+ tested with XBMC?

THX
pOpY

PS: i dont want to buy a new mainboard

- quake101 - 2008-12-16

I've seen some people having success with Vista. I can't confirm this but, it might be worth a shot before you go spending a bunch of money. Smile

- popy - 2008-12-16

Thanks for the info, ill found an other thread with the same problems.

Here it is:

http://forum.xbmc.org/showthread.php?tid=39322&page=5

Thanks
pOpY

- harryzimm - 2008-12-16

The answer is simple, if you want to play all 1080p content get an intel E8400. If you are happy to compromise get a amd 6000+ it will play 90% of 1080p content but prepare for dropped frames in some movies. I have gone the amd path and it is a pain in the arse, best to just change to intel, i did and haven't looked back since

cheers

- nekrosoft13 - 2008-12-17

harryzimm Wrote:The answer is simple, if you want to play all 1080p content get an intel E8400. If you are happy to compromise get a amd 6000+ it will play 90% of 1080p content but prepare for dropped frames in some movies. I have gone the amd path and it is a pain in the arse, best to just change to intel, i did and haven't looked back since

cheers

you are correct, my 5600+ played some 1080p content fine, mostly VC1. but with high bitrate h264, forget about. it kept loosing frames then audio got out of sync it was horrible.

- althekiller - 2008-12-17

nekrosoft13 Wrote:you got that line correct,you can't claim that amd system doesn't need quad since don't know anything about amd offerings..

Actually, I can, just apply Amdahl's Law. Half (P) of the cpu bound operation can be parallelized, so no matter how many cores (N) you throw at it, maximum speed up is 2.

We only use two threads to decode, you can put as many damn cores as you want in there and it's not going to help you. Only increasing the clockrate. Now I can't say that AMD didn't improve their architecture significantly for w/e core your quad is using thus making it clock for clock more efficient. That could well be the case, but simply stating that your need a quadcore is WRONG.

- popy - 2008-12-17

Ok, then ill go the intel way!

Will report back...

THX
pOpY