Radeon
      9800 XT mini-review 
      Dr.
      John
       
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    | ATI recently
      released the updated Radeon 9600 and 9800 XT models, and I thought it
      might be a good idea to compare the new 9800 XT to the original 9800 Pro
      to see if the upgrade was worth the money.  The 9800 XT in many ways
      is really just an overclocked 9800 Pro.  The default speeds on the
      9800 Pro are 378MHz on the engine and 338 on the memory.  The XT
      improves this by adding a huge copper heat sink that covers the front and
      back of the card, with speeds boosted to 412MHz on the engine and 365MHz
      on the memory.
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    The two cards look quite different, and
    the XT weighs about twice as much due to the massive copper heat sink.
    Unlike the NVidia 5900/5950, the XT only takes up one slot in your computer
    case.
     Setup:  
    The setup I tested on included: 
    Asus A7N8X Deluxe 
    - AMD 2500+ Barton with Thermalright 800 HS
    (running at 2GHz) 
    - 2 x 512MB PC3200 DDR in dual bank mode 
    - 2 x 76GB U320 15K rpm hard drives  
    - Catalyst 3.10 drivers and DX9.0b 
    - Windows 2000 w/ SP4 
    Tests:  
    I started with good old 3D Mark 2001se to
    take a look at DX 7 performance.
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    The results here don't look too great for the
    XT, with insignificant increases over the Pro model. So how about 3D Mark
    2003?
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    Now that's a bit better, with about a 10%
    performance boost across resolutions. This is what I expect from an
    overclocked video card.
     Next we move on to CodeCreatures, which
    really pushes the polys on the screen. 
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    Here we see some really substantial
    improvements over the Pro version, boosting the fps at 1280 from 35fps to
    over 45fps, which is more than 20%.
     But what about games? I thought I'd take a
    look at UT 2003 to see if there was a difference between the two cards. 
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    The answer is no.  The differences aren't
    worth an ice cube at the North Pole.
     How about overclocking the card above the
    manufacturer's specs? ATI offers an "overdrive" feature with the
    Catalyst 3.10 drivers, so I compared that to manual overclocking with
    Powerstrip using 3D Mark 2003. You'll want to compare the bars of the same
    color with each other at the 3 resolutions.  
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    The overdrive did virtually nothing to the
    benchmark scores, whereas pushing the speeds to 424 core and 390 memory did
    offer a very slight improvement.  I played Desert Combat at these
    settings, and the system spontaneously rebooted after about 30 minutes.
    Dropping the memory speed to 380 fixed this overclocking-related problem.
     Conclusions: ATI
    is making some great video cards now, but they've about reached the end for
    this particular chip line. I thought having the memory running 50MHz faster
    than the pro would make more of a difference than it did. I'll be interested
    to see how the next line of ATI's video cards perform. Bottom line, if you
    have a good video card now, don't buy an XT.
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            Radeon
              9800 XT Pros 
              
                - Looks cool
 
                - 256MB memory
 
                - Fastest card available
 
                - Overclocks a little more
 
                - Good at high resolutions
 
               
              Radeon 9800 XT Cons  
              
                - More expensive than other video cards
 
                - Weighs a ton
 
                - Not a lot faster than the 9800 Pro
                  under many conditions
 
               
               
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              RATINGS: 
              Radeon 9800 XT: 
              Price:
              Approximately $475US retail 
              Rating,
              :  4.4 out of 5 smiley faces (88%). 
              :) :) :) :) +    
              Recommended only if you
              have the dough, and don't already have an ATI 9700/9800, or NVidia
              5900/5950 
              Availability:
              Moderate 
               
               
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      © Copyright, January 3rd, 2004 KickAss
      Gear
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