The ultimate Graphics accelerator for your
CyberstormPPC or MkIII
CybervisionPPC
Description
Most PC users know about the Permedia 2 chip -
it's one of the most up-to-date 3D graphics
processors. The Permedia 2 is also the heart of the
CybervisionPPC card, and its 2D performance is
quite impressive. It can display 1280 by 1024
pixels in true color with an 85 Hz refresh rate;
1600 by 1200 pixels in true color at a refresh rate
of 60 Hz (85 Hz in high color) and is equppied with
8 MB of display memory. Its 3D features include
z-buffering, fogging, blending, anti-aliasing,
gouraud shading and 80 million 3D pixels per
second. At the moment, there is no Amiga software
around that makes full use of the Permedia2. This
will change with the release of Warp3D.
CybervisionPPC
Benchmarks
After all the talk about what the board could do
in theory, let us have a look at the pure
benchmarks. phase5 claimed the direct-cpu bus on
the PPC boards were very fast. Here are some Bus
speed results made with BusSpeedTest 0.19.
Operation ->
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readw
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readl
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readm
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writew
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writel
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writem
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Picasso IV
ZorroII->PCIBus ??MHz
|
1.5
|
1.6
|
1.6
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2.4
|
2.4
|
2.4
|
CyberVision64/3D
ZorroIII->PCIBus 25MHz
|
1.7
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3.4
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3.4
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3.8
|
7.5
|
7.6
|
Picasso IV
ZorroIII->PCIBus ??MHz
|
1.8
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3.5
|
3.5
|
5
|
9.9
|
9.9
|
CyberVision64
ZorroIII->VLBus 50MHz
|
2.1
|
4.3
|
4.3
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7
|
13.9
|
13.9
|
CyberVisionPPC
CStorm local bus->PCIBus 25MHz
|
2.4
|
4.8
|
4.8
|
8.6
|
17.3
|
17.2
|
BusSpeedTest 0.19
was used and the numbers are all
number(bandwidth) * 10^6 byte/s.
Source: http://www.vgr.com
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It should be noted that the CybervisionPPC's
bus-speed results are by far not as fast as
expected! Why no draw speed results? It can be said
that the CyberVision PPC is faster than the former
CyberVision graphic boards in everyday use
especially in 800x600 modes.
Overall
One negative point is that you don't have the
option for a scan doubler or flickerfixer if you
don't want to use an external monitor switcher.
Future versions of the firmware will allow you to
display the bootmenu. If you already own a
Zorro-III graphics accelerator, it is debatable
whether or not the CybervsionPPC with today's
drivers and at this price is worth the upgrade.
Prices for the CybervisionPPC start from around
DM: 500 UKĀ£: 200 US$: 300.
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