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Old 02-04-09, 07:22 AM   #1
jyavenard
MythTV developer
 
Join Date: Mar 2006
Posts: 413
Default Comments/Reviews on few nVidia cards and questions

Hi.

I have just received my Gigabyte GA-E7AUM-DS2H which is based on a 9400 chipset.

I have a few nvidia cards, and I tested them all with VDPAU using MythTV.

--
ASUS EN8400GS SILENT/HTP/512M, 8400GS, 512MB@400Mhz, G98 based, 567.4MHz. Supports H264, MPEG2 and VC-1.
deinterlacing result:
SD: One Field, Bob 2X, Temporal 1X, Advanced 1X, Temporal 2X, Advanced 2X
HD: One Field, Bob 2X

--
Gigabyte GA-E7AUM-DS2H, 9400G IGP, 512MB@1600Mhz.. 580MHz. Supports H264, MPEG2 and VC-1
deinterlacing result:
SD: One Field, Bob 2X, Temporal 1X, Advanced 1X, Temporal 2X, Advanced 2X
HD: One Field, Bob 2X, Temporal 1X, Advanced 1X
Note with HD content and either Temporal 1X and Advanced 1X there are some weird effects from time to time, like it's missing some frames and slight trails on moving object: still usable

--
Apple macbook with 9400M IGP, 256MB@2088MHz.. 450MHz. Supports H264, MPEG2 and VC-1
deinterlacing result:
SD: One Field, Bob 2X, Temporal 1X, Advanced 1X, Temporal 2X, Advanced 2X
HD: One Field, Bob 2X, Temporal 1X, Advanced 1X

--
ASUS EN9400GT SILENT/HTP/512M, 9400GT 512MB@400Mhz, 550MHz. Supports H264 and MPEG2
deinterlacing result:
SD: One Field, Bob 2X, Temporal 1X, Advanced 1X, Temporal 2X, Advanced 2X
HD: One Field, Bob 2X, Temporal 1X, Advanced 1X

GIGABYTE GV-NX86T256D, 8600 GT 256MB@720Mhz, 575.4MHz, Supports H264 and MPEG2
deinterlacing result:
SD: One Field, Bob 2X, Temporal 1X, Advanced 1X, Temporal 2X, Advanced 2X
HD: One Field, Bob 2X, Temporal 1X, Advanced 1X, Temporal 2X, Advanced 2X

GIGABYTE GV-NX86T512D, 8600 GT 512MB@720MHz, 600MHz, Supports H264 and MPEG2
deinterlacing result:
SD: One Field, Bob 2X, Temporal 1X, Advanced 1X, Temporal 2X, Advanced 2X
HD: One Field, Bob 2X, Temporal 1X, Advanced 1X, Temporal 2X, Advanced 2X

I've sorted the cards in what I believe is the least performing to the best performing de-interlacing wise.

Now, why the 8400gs doesn't perform as well as the 8600GT when it has a faster GPU ; no idea
And even more hard to understand, why a macbook gives me perfect result, when the 9400G based motherboard with the same chipset but faster gives me something that while definitely usable not as nice as the macbook..

Hope this help someone looking at their next purchase ... if you want to add your finding with your own video card (using different chipset if possible)
Jean-Yves
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