Originally
posted 07/17/03 by rob-ART
morgan,
mad scientist
Updated 7/19/03 with Versavision notes
Apple is offering
the highly regarded Radeon 9800 as a BTO option for
the G5 Power Mac. However, it's designed for the
G5's 8X Pro AGP slot. What about the rest of us
poor devils with 2X or 4X AGP slots? Never fear.
The retail version of the Radeon
9800 Pro
Mac Edition (4X/2X AGP) is now shipping.
We have test
results.
ANALYSIS
1. The first
thing I noticed is that the Radeon
9800 Pro
Mac Edition (or "ME") is no faster than the 9700
ME. That's not a bad thing since the 9700 ME
never really made it into retail channels. The 9700
and 9800 both feature 256 bit DDR and 8 render
pipes. Both support dual displays. They even have
similar core clock speeds.
It's
likely that the G5 with its 8X AGP Pro slot will
let the BTO version of the Radeon 9800 Pro
"stretch its legs." The SpeedTest
benchmark was run on a G5/2GHz MP with a 9800
Pro. It produced Quartz results 59% faster than
the G4/1.42GHz MP with a 9800 Pro. It produced
OpenGL results 57% faster.
2. Besides the
AGP interface difference (8X Pro vs 4X/2X), the BTO
9800 Pro optional on the G5 Power Mac and the
retail 9800 Pro differ in the choice of ports.
The BTO version offered on the G5 has DVI and
ADC ports. The retail version comes with
DVI, VGA, and S-Video ports. ATI believes
that's what most retail buyers will
want.
I must
be the exception. I have dual ADC displays on my
production system. It has the Radeon 9700 Pro ME
which features DVI and ADC ports. I use
Apple's
$99 DVI to ADC
adapter
to drive the second ADC display off the DVI
port.
With the
retail 9800 Pro, I can only run one ADC display
using my DVI
to ADC adapter.
But what about the second ADC display? The only
way I can use it is to pop for the $300
Gefen
VGA to ADC
converter.
Even if you
have only one ADC display, you'll need a DVI to
ADC adapter ($99 from Apple
or $95 from Dr.
Bott)
to use it with the Radeon 9800 Pro ME
retail.
9/10/03 -- Many
of you have written me puzzled why ATI's retail
Mac version of the Radeon 9800 Pro does not come
with ADC connector and 8X support. I shared
your puzzlement. Here's an explanation from
ATI:
"ADC
for the G4 is different from the G5. The
power connector on the motherboard is not in the
same place. Therefore the following is
true:
G4
ADC cards will not fit into a G5 at
all.
G5 ADC
cards fit into a G4, but the ADC power tab
will not be connected - and the cards won't
boot anyway.
The only
cards that can work on both machines are
NON-ADC AGP 4x cards" (like the retail
Radeon 9800 Pro ME)
3. In my three
graphics tests, the GeForce4 Titanium (Mac Edition)
was either slightly slower or slightly faster than
the 9800. If you already have the GeForce4 Ti, you
may want to read the spec
sheet on
the Radeon 9800 Pro to see what other features it
offers.
4. I included the
results from my recent tests with the Pentium 4
(3.06GHz) with 400MHz DDR. As you can see, there's
not much difference between the 9700 and 9800 on it
as well. As for the Mac vs PC performance gap,
don't expect the Radeon 9800 Pro in your G4 to
narrow it. That feat will require a G5 Power Mac
with the 9800 Pro option. (Vrooom,
vroooom!)
5. So why should
you trade in your Radeon 9700 or GeForce4 Ti for
the Radeon 9800 Pro if it's not that much faster?
Well, for one thing, it provides a Display utility
that lets you turn on advanced features like
Full Scene Anti-Aliasing and Anisiotropic Shading
in certain apps. Of course, there's a speed
penalty as you can see in the graph below. (For
other advanced features, consult the
spec
sheet.)
6. Another
reason you might want the Radeon 9800 is something
called Versavision. It provides hardware
accelerated display rotation and scaling. It
enabled me, for example, to turn my Cinema
display into a giant Portrait display. If that
appeals to you, check out the PixArm
from Marathon
Computers.
It's an articulated arm mount that lets you rotate
your display 90 degrees.
7. Would I buy
the Radeon 9800 Pro ME retail version? It does
provide state-of-the-art features and 3D speed for
my G4 Power Mac. However the port issue is a
non-starter for me.
If
price is no object, would YOU buy the Radeon
9800 with DVI and VGA ports? Or would you
hesitate because you prefer DVI and ADC ports.
Send me email
and I'll pass your comments on to my contacts at
ATI.
LINKS TO OTHER
RADEON 9800 PRO TESTS
Inside
Mac Games
XLR8YourMac
WHERE TO
BUY
You can order the
retail Radeon 9800 Pro Mac Edition (4X/2X AGP)
direct from ATI's
web site
for $399. Ask about their trade-up
program.
The 9800 Pro for Mac will soon be available from
Small
Dog Electronics
and from Buy.com.
Visit the
Apple
Online Store
to order your G5 Power Mac with the 8X Pro AGP
version of the Radeon 9800 Pro.
TEST
NOTES
The Power Mac
G4/1.42MP with 2GB of DDR memory and OS X (10.2.6)
was the test mule. Cards tested on it
included:
ATI
Radeon 9800 Pro
ME
with 128MB of 256bit DDR and 8 render
pipes
ATI
Radeon 9700 Pro
ME
with 128MB of 256bit DDR and 8 render
pipes
ATI
Radeon 9000 Pro
ME
with 64MB of 128bit DDR and 4 render
pipes
nVidia
GeForce4 Titanium
(4600)
with 128MB of DDR and 4 render pipes (2 texture
units per pipe)
SEE
"HOW
WE TEST"
for details on the tests reflected in the
graphs.
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