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- Path: cmir.arnes.si!usenet
- From: uljff3@guest.arnes.si (Jernej Pecjak)
- Newsgroups: comp.sys.amiga.graphics,comp.sys.amiga.hardware
- Subject: Re: Cybervision 16 and 24 bit modes
- Date: 4 Mar 1996 22:35:44 GMT
- Organization: Academic and Research Network of Slovenia
- Message-ID: <3152.6637T1401T2543@guest.arnes.si>
- References: <4h6tso$10et@rs18.hrz.th-darmstadt.de>
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-
-
- >Jernej Pecjak (uljff3@guest.arnes.si) wrote:
-
- >> And then again: I am only in 1/5 of the SSpeed module I found on
- >> Aminet. Can this be because I have a 030/25 and not 060/50.
-
- >Joker. :-) If this was a serious question, the answer is YES. Period.
-
- Nope, I wasn't joking. I never had a big box amiga and a gfx before, that is!
-
-
- >> Draw pixel from my machine is 29000 pixels/sec (like Picasso :-((()
-
- >That's no surprise. Functions like drawing pixels, circles etc. are
- >performed by the CPU and therefore aren't accelerated by the Cybervision.
- >It should still be faster than on a Picasso with 030/25 because of the
- >faster Zorro-III bus, but not too much. Even high-end boards with VRAM,
- >if they should come out, couldn't improve this.
-
- >But don't worry: These functions are nearly completley irrelevant in
- >normal use. What really counts is the speed of window functions (high
- >due to Cybergraphics), data transfer (high due to Zorro-III bus) and
- >scrolling (high due to the fast blitter).
-
- Thanx for the info.
-
- >> and the test module is 155000 from cyberstorm.
-
- >Where did you get these values? I would be interested in them
- >since I plan purchasing a Cyberstorm Mk. II board. This pixel
- >value isn't too impressing since I get the same with a GVP
- >040-40 board, but again it's other values which are important.
-
- This is from SSpeed test on aminet.
-
- >> I find 24 bit modes VERY SLOW. Does anybody experience this phenomen?
-
- >Of course. In this modes, four times the amount of data has to be
- >manipulated and displayed. So what did you expect your board to
- >perform like? Four times faster?
-
- Nope, but usuable. I had a Spectrum EGS before and on 030/25 I found it
- unusable. Why? I expect it to perform like 8 colours AGA. Because with a gfx
- card I don't have a chouce: 8 colours is as slow (fast) as with 8 colours. I can
- put less colours in AGA, not on gfx card, so it must be approx the speed of 8
- colours AGA. What is funny is that on every gfx test EGS is better than AGA in
- 16 colours but in real life on 030/25 it is slower (in Wordworth eg.). DO you
- know if CV64 is as fast as AGA in 8-16 colours? On a 060/50 if you have that
- info.
-
- BTW: When wil the Cyberstorm MKII see the light of day? I am waiting for it
- forever!!!
-
-
- Jernej
-
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- ____
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- / \ | \/ | | | / \ jernej.pecjak@kiss.uni-lj.si
- / \ | | | |---- / \
- /----\ | | | | | /----\ Editor of Amiga Master
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- Running: A1200, 060/50Mhz, 1.2Gb Hard disk, NEC 3D monitor, 16Mb RAM
-
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