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Why Memory Bandwidth Benchmarks are Bullshit

You would think that Benchmarks are your friend when it comes to measuring your Computers performance. At least until you talk to the actual IT guys and then get laughed at because Benchmarks reveal absolutely nothing. Their only use case is e-peen contests – and now discovering why so many memory benchmarks get wildly different scores. Read more

What is the fastest way to get an Inverse Square Root?

Everyone who works with a 2D or 3D development studio knows that eventually you will run into hardware that is too slow. Wether that hardware is what you currently have or what your target demographic has doesn‘t matter – you‘ll hit this limit, even if you try not to. That‘s why some clever people came up with different ways to make things faster. Seperating the FPU from the IPU, SSE and AVX and the famous Quake III floating point hack. But which one performs the fastest, and can we make that one even faster? Read more