| Originally
                  posted 07/17/03 by rob-ART
                  morgan,
                  mad scientistUpdated 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.   |