A A gaming orientated measure of CPU speed that favours single over multi core performance. Intel i7-7700K ~= 100%.
Measuring CPU performance was once straightforward, clock frequency used to scale reasonably well with real world performance. At 3 GHz clock frequency increases slowed and manufacturers starting putting more emphasis on total calculation throughput rather than raw single core performance, they started adding additional cores. Extra cores work well for server orientated workloads where there are typically lots of CPU intensive tasks running in parallel but for consumer and gaming workloads where two cores or less are typically active, the additional cores make little difference to real world performance. The effective CPU speed index measures performance with the following weights: single-core mixed (30%), quad-core mixed (60%) and multi-core mixed (10%). These weights are appropriate for typical 3D gaming. One fox beats one hundred chickens.

 

See a current list of CPUs sorted by effective speed here.

The Best.
CPUGPUSSD
Intel Core i7-7700K $309Nvidia GTX 1070 $366Samsung 850 Evo 250GB $100
Intel Core i5-7600K $233AMD RX 480 $608Samsung 850 Pro 256GB $125
AMD Ryzen 7 1700 $297Nvidia GTX 1060-6GB $243Samsung 850 Evo 500GB $169
HDDRAMUSB
Seagate Barracuda 1TB (2016) $50Corsair Vengeance LPX DDR4 3000 C15 2x8GB $127SanDisk Extreme 64GB $34
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $696SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $46HyperX Fury DDR4 2133 C14 2x8GB $144SanDisk Ultra Fit 32GB $13
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