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I am experiencing what seems like a confounding performance problem with a new HTPC.


New HTPC specs: Athlon X2 5600, 2GB RAM, 250GB HD, integrated HD3200 graphics (780G motherboard). OS=Vista SP1 with all up-to-date patches.


Old PC specs: Core2Duo 2.16Ghz, 3GB RAM, plenty HD, PCI express ATI x300. OS=Vista (no SP1)


Both are connected to the same monitor, a 20 inch 1680x1050 LCD (old PC via DVI, new PC via VGA temporarily). Both PC's have the exact same codec pack installed.


I noticed some lag streaming Hulu on new HTPC, so tested on Old PC: smooth playback.


Non-HD content (DVD, SD xvid/divx) plays fine on new HTPC.


To test high-stress playback, I downloaded 1080P clips in MKV format. One clip is from "The Shining".


On Old PC, with ATI X300, full screen Shining clip plays back at 24fps (according to FRAPS), smooth as butter.


On New HTPC with HD3200, full screen Shining clip plays back at best 18-19fps, drops frames, and stutters.


Both PC's peak at about 75-80% CPU time for brief moments during Shining clip.


Media Player Classic shows exact same filters being used for playback (Haali splitter/FFDshow/VMR9).


Ack! What is going on? Could it be the integrated HD3200? I realize integrated video is suboptimal for gaming, but video playback compared to a several year old X300?


Other factors? Have disabled same set of services on both PC's. If not the video cards, I am not sure what else to monkey with.


thanks for advice!
 

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Quote:
Originally Posted by beagle /forum/post/15585339


I am experiencing what seems like a confounding performance problem with a new HTPC.


New HTPC specs: Athlon X2 5600, 2GB RAM, 250GB HD, integrated HD3200 graphics (780G motherboard). OS=Vista SP1 with all up-to-date patches.


Old PC specs: Core2Duo 2.16Ghz, 3GB RAM, plenty HD, PCI express ATI x300. OS=Vista (no SP1)


Both are connected to the same monitor, a 20 inch 1680x1050 LCD (old PC via DVI, new PC via VGA temporarily). Both PC's have the exact same codec pack installed.


I noticed some lag streaming Hulu on new HTPC, so tested on Old PC: smooth playback.


Non-HD content (DVD, SD xvid/divx) plays fine on new HTPC.


To test high-stress playback, I downloaded 1080P clips in MKV format. One clip is from "The Shining".


On Old PC, with ATI X300, full screen Shining clip plays back at 24fps (according to FRAPS), smooth as butter.


On New HTPC with HD3200, full screen Shining clip plays back at best 18-19fps, drops frames, and stutters.


Both PC's peak at about 75-80% CPU time for brief moments during Shining clip.


Media Player Classic shows exact same filters being used for playback (Haali splitter/FFDshow/VMR9).


Ack! What is going on? Could it be the integrated HD3200? I realize integrated video is suboptimal for gaming, but video playback compared to a several year old X300?


Other factors? Have disabled same set of services on both PC's. If not the video cards, I am not sure what else to monkey with.


thanks for advice!

I too am disappointed with the 780G MOBO. For me I have a Gigabyte S2HP Mobo. I upgraded from an 690G mobo which I thought was also faster and it had a slower proc. For me I find the quality of video really sucks for TV in SD but the rest looks fine. I think this chipset the 780G is optimized for Phenom procs. Without it certain things are disabled when using the regular X2 proc - especially video. I am upgrading the video to a 4550 which is cheaper then any phenom proc. I will let you know what are the results.
 

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The IGP HD3200 is barely faster than the IGP X300 (depending on models)..

IGP X300 is still much slower than "dedicated" X300 video cards.


With decent dedicated PCI Express video cards as low as $10-$20 after rebate, paying extra for a motherboard with "better than old onboard video" is not always the best choice,


here are some 3dmark IGP test results from systems running here:

(not a good comparison tool for many things)


ATi HD 3200 IGP (780g) asrock (jan 2009)

AM2 X2 2.61ghz

3dm2k1se = 8500

3dmark03 = 1771

3dmark05 = 1435

3dmark06 = 797


Jetway IGP ATi x300 (has 32meg dedicated video memory on motherboard + shared).

3dm2k1se = 7910

3dmark03 = 2096

3dmark05 = 799

3dmark06 = not tested


ATi 3100 IGP (780v) Foxconn

3dm2k1se = 5792

3dmark03 = 1771

3dmark05 = 1435

3dmark06 = 797


ATi HD 2100 IGP

3dm2k1se = 4388

3dmark03 = 1492

3dmark05 = 898

3dmark06 = 324
 

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Yes, the 780G and 790GX work far better with an AM2+ processor. The 7750 is around $79 currently online.


BT
 

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Quote:
Originally Posted by bjterry62 /forum/post/15599444


Yes, the 780G and 790GX work far better with an AM2+ processor. The 7750 is around $79 currently online.


BT

has anyone actually confirmed this.? I know theoretically it is supposed to work, but do the 780g drivers recognize the faster hyper transport and open up post processing?
 

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Quote:
Originally Posted by viplob /forum/post/15623639


has anyone actually confirmed this.? I know theoretically it is supposed to work, but do the 780g drivers recognize the faster hyper transport and open up post processing?

Yes it has, but I'm not about to dig through all the threads here at AVS to find it. Below is a excerpt from a post by renethex on the Gigabyte 780G MB thread .


"Suddenly Phenom 9100e looks very promising.


- Phenom 9100e quad-core 1.8GHz HT 3.0 65W, $100-$130

- AMD 780G mb, ~$80

- Total cost: $180-$210

- HQV: 130 out of 130 (?)

- HD HQV: 80 out of 100 (?)

- 3DMark06: 1400


may be better than


- Athlon 4850e dual-core 2.5GH HT 2.0 45W, $89

- AMD 780G mb, ~$80

- Total cost: $170

- HQV: 113 out of 130

- HD HQV: 45 out of 100

- 3DMark06: 680"


There are other posts in this tread discussing this, but the thread is well over 100 pages and I can't go through the whole thing.


BT
 
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