Slightly off-topic but interesting for any enthusiasts of high performance computing - an interesting slideshow with great write-ups for each slide looking at the history of and advancements in the high performance computing space over the past 22 years: 22 Years Of Supercomputer Evolution

My laptop's CPU does 40 GFLOPS (according to LINPACK), 19 GFLOPS slower than the CM-5/1024 Supercomputer from June 1993.
Now... if we measure it core-by-core performance, my laptop does 10 GFLOPS per core vs the 0.058 GFLOPS per core of the CM-5/1024.

I wonder how my cellphone stacks up to these ancient supercomputers.

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And there's a contender for the #5 position on the TOP500 list... BOINC!

If you wanted to include ASIC/FPGA computation, it would soundly be #1.

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Click here to see My Detailed BOINC Stats