Our friends from Finland, Sampsa Kurri and Ville Suvanto achieved graphics engine clocks of 1.003 GHz and a memory speed of 1.881 GHz with maximum system stability and no visual artifacts. “It’s impressive to see the Radeon X1800 XT architecture achieve 1 GHz core speed and approach 2 GHz memory speed, which far exceeds the specifications of the memory devices,” said Stan Ossias, Sr. Product Manager, Desktop Products, ATI Technologies Inc. “Once faster GDDR-4 memory arrives next year, users can expect to see the hidden potential of ATI’s innovative new memory controller design complement our powerful shader engines with massive additional memory clock scalability.”

An independent team of Finnish over-clockers has made world history by
over-clocking a graphics processor to engine clock levels above 1 GHz. The
record was set on the recently-announced Radeon® X1800 XT graphics processor
from ATI. Noted Finnish over-clockers Sampsa Kurri and Ville Suvanto achieved
graphics engine clocks of 1.003 GHz and a memory speed of 1.881 GHz (940.50 MHz
DDR (dual data-rate) memory clocks) with maximum system stability and no visual
artifacts.

The team, optimistic that higher speeds could ultimately be achieved with the
Radeon X1800 XT, attained the record speeds using a custom-built liquid nitrogen
cooling system that cooled the graphics processor to minus-80 degrees Celsius.
“We’re just warming up,” joked Kurri. “But we believe that the Radeon X1800 XT
has even more over-clocking headroom, and in the coming weeks we expect to
achieve higher clock speeds and even greater performance levels.”

“It’s impressive to see the Radeon X1800 XT architecture achieve 1 GHz core
speed and approach 2 GHz memory speed, which far exceeds the specifications of
the memory devices,” said Stan Ossias, Sr. Product Manager, Desktop Products,
ATI Technologies Inc. “Once faster GDDR-4 memory arrives next year, users can
expect to see the hidden potential of ATI’s innovative new memory controller
design complement our powerful shader engines with massive additional memory
clock scalability.”

A screen shot can be found at:
http://www.muropaketti.com/r520_ghz.png

Radeon X1800 XT’s extreme clock-scaling capabilities are made possible by a
series of key innovations that include use of the state-of-the-art 90-nanometer
semiconductor process technology, an efficient new Ultra-threaded Shader Model
3.0 architecture, and a revolutionary new 512-bit ring-bus memory controller.