Frogger is slow on my MMU '030 playing VCD

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Well,

My old 486 @ 66 MHz could do it with halved quality, so it should do fine on an overclocked 040, or a 060.

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gizz72 wrote:
Greetings whabang,

My old 486 @ 66 MHz could do it with halved quality, so it should do fine on an overclocked 040, or a 060.

Yes I agree. The old 486 does play video better. Thanks to VGA cards. :-)

Regards,

Gizz

Of course. Not having a gfx-board on your Amiga would make things even slower.

BTW, did you know that AMD's 486-DX4s performed better per cycle, than the early P4s? :-)

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minator wrote:
PC Gfx cards have done hardware decoding of MPEG for many years now, it's faster on the 486 because the 486 isn't doing the decoding.

Yes it did. I can't really tell if it skipped some frames or not (didn't notice it if it did), and the audio quality really sucked (11 kHz, mono), but it did run. IIRC, I used Xing MPEG-player back then.

My old Cirrus Logic-card sure as hell didn't have HW-acceleration.

The file I particularily remember playing, was the Weezer-video that was on the Windows 95-CD.



You aren't mixing VCD up with SVCD, are you? MPEG2-streams take a lot more power.

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Gizz:
I just came to think of something:
Which IDE/SCSI-comtroller are you using? Transfers can eat a lot of CPU-power, if you don't use DMA.

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Not at all, the P4 is a very inefficient processor, if you clock it the same as other x86s (P3, K7) the P4 comes out 25-30% slower than the others.

Hehe!
I remember the launch of the 1.6 GHz Tulatin CPU being cancelled, because it kicked the P4s ass too bad! :-D


Just checked the old review. It was running at 1.49 GHz.

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Crumb wrote:
486 also had faster gfx bus... and some cirrus logic cards accelerate slightly MPEG videos thanks to their YUV modes (AFAIK it's the mode used by RiVA/Moovid to make the Picasso4 slightly faster)

Aye!
IIRC, the VESA-bus is three times as fast as the ISA-bus, which is already faster than the Zorro II-bus.

My Cirrus-card didn't have YUV-modes (Heck! The first year it didn't even have Windows 95-drivers :-P), but it would prolly have increased speed even more.

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An interesting thim is that there were some DMA IDE-controllers for the PC, but until UDMA appeared, they were never popular because they wasn't very fast. I remember getting one of those fancy VESA IDE-controllers with on-board cache only to discover that my old controller used much less CPU-power.
Too bad it was slow as hell. :\