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|ATi Radeon X1900 Preview |
| ATi Radeon X1900 Family Preview
Published on January 24th, 2006 |
On January 24, 1848, a valuable item was
unearthed by New Jersey prospector James Marshall whilst trying to
repair a large mill wheel. That item turned out to be gold, and
the Great California Gold Rush was born.
Fast forward 158 years to the current day, in fact TODAY, and another
important discovery is being unearthed on this date - ATI's
X1900 line of video cards. Unfortunately we didn't receive
a review sample, so instead of publishing benchmarks this preview is
instead going to focus on the technologies behind X1900 and how they
differ from, and improve upon, those of X1800 (rest assured we will be
posting a full review, packed to the brim with benchmarks, as soon as
we get an X1900 in our hot little hands!).
X1900 comes in three flavors - the XTX (MSRP $649), XT (MSRP
$549), and Crossfire (MSRP $599) editions. Architecturally the
X1900XTX and XT are the same; the only difference between these two
cards is the speed of both core and memory. The flagship X1900XTX
is clocked at 650 MHz for the core and 1.55 GHz for the memory, while
the X1900XT is clocked just slightly slower at 625 MHz for the core and
1.45 GHz for the memory.
Both X1900 cards contain over 380 million transistors, 16 pixel
pipelines, and 48 pixel shader processors which is three times the
number of shaders in X1800. The X1900 is able to combine all of
the key innovations of the Radeon X1000 series (such as
Ultra-Threading, HDR with Anti-Aliasing, image quality improvements,
and Avivo video & display technologies) with massively increased
shader processing power, and other interesting new features like Fetch4
shadow map acceleration.
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