PowerColor Radeon X800 GT - Page 4
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Test Setup and Overclocking
Overclocking:
I proceeded to use
the popular ATITool utility to find my core and memory headroom. The first
step was to find the maximum core frequency alone. Leaving the memory at
default speeds, the core pumped to a beautiful 571.50MHz. That is almost
100MHz from the default speed! This is all with stock cooling too!
For the next step, I defaulted the core clock back to stock speeds and proceeded
to find the highest memory clock. With no heatsinks attached and no aid in
cooling, the memory went from the default 490MHz to a spectacular 615MHz.
If you can recall earlier about the use of the 2.0ns memory chips, they are
theoretically rated to run at 500MHz. The memory overclock result came to
be 115MHz over the theoretical limit and 125MHz over the default speed.
Quite amazing. The reason why I overclocked the core and memory separately
is because the end result of them both overclocked at the same time is not the
same as combining the individual results. After spending some time
fiddling with frequencies and testing for stability in 3DMark05, the final
overclock on stock cooling came out to be 570MHz/609MHz. Very impressive.
Testing Setup
and Methods:
Benchmarks:
Video Cards Tested:
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