Moore’s Law Not Dead – Intel’s Use of HPC to Keep It Alive

Re:Moore’s Law Not Dead – Intel’s Use of HPC to Keep It Alive by ZenoArrow on Tuesday January 12, 2016 @01:02PM (#10889068)

Tracking GHz isn't an accurate way to measure performance. Take a look at this table, which looks at Instructions Per Second for a number of different processors/devices:

https://en.wikipedia.org/wiki/Instructions_per_second#Timeli...

To see an example of why GHz isn't an accurate way to look at performance, compare these two:

Pentium 4 Extreme Edition - 9,726 MIPS at 3.2 GHz

Intel Core i7 5960X - 238,310 MIPS at 3.0 GHz

That said, it is possible to have CPUs that exceed 4GHz. Heat is the issue you need to overcome.

Here's an Intel's Core i7-4770K, overclocked to 8GHz:

http://www.tomshardware.com/news/Intel-Haswell-Overclock-i7-...

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Re:Moore’s Law Not Dead – Intel’s Use of HPC to Keep It Alive by frik on Tuesday January 12, 2016 @01:21PM (#10889223)

Thanks a lot.

Comparing your Intel Core i7 5960X with the old 2004 Pentium 4, single thread performance:

  Intel Core i7-4790K @ 4.00GHz  ... 2529 
  Intel Pentium G3258 @ 3.20GHz  ... 2172
  Intel Core i7-5960X @ 3.00GHz  ... 1991
  Intel Pentium 4 @ 3.80GHz      ...  824 
  Intel Atom 230 @ 1.60GHz       ...  238

https://www.cpubenchmark.net/singleThread.html

Vector processors like the Cray-2 are very awesome and had huge amounts of main memory. We will see nVidia does with their GPUs and AMD does with their APUs that works great already in PS4/XB1.

(MIPS and GFLOPS measurements depend on the benchmark implementation and the used language/compiler/etc.; and they show unrealistic PEAK results, rather than real world performance) LINPACK benchmarks (Fortran based) is better than MIPS AND GFLOPS too, "The performance measured by the LINPACK benchmark consists of the number of 64-bit floating-point operations, generally additions and multiplications, a computer can perform per second, also known as FLOPS. However, a computer's performance when running actual applications is likely to be far behind the maximal performance it achieves running the appropriate LINPACK benchmark" https://en.wikipedia.org/wiki/LINPACK_benchmarks

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