CPU-boundedness of the video system Part I - Analysis
Forecasting the results
It is now time we moved to the practical conclusions made on the base of the theory that we produced.
I believe you will be curious to know the upper limit the CPU Athlon 64 should be overclocked to in order to produce 20000 "marks" in 3DMark'05, won't you? We can easily do that now with graph 7.
 Graph 8We have merely changed the scale of graph 7 and expanded it over both the height and width. The result is evident. In order to attain the 20000 «marks» in 3DMark’05, we need to overclock Athlon 64 to at least 4000 (of real megahertz, not rating figures) and only then start overclocking the video subsystem.
Conclusion
In the next part of the review «CPU-boundedness of the video system», we'll introduce you to the methodology which may help make up a decision on the necessity of upgrade and thus use a scientific approach in doing that. At the same time, you won't need any other "hardware" - just a few simple tests run on the computer to be upgraded will suffice.
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