A A percentage measure of component performance per price for typical real world use.
For each component class the UBM effective speed is based on hundreds and thousands of user benchmarks. The aim is to quantify real world performance for typical consumer use. The value for money rating scales UBM effective speed by current market price to arrive at a percentage which is chosen to ensure that the best value mainstream component scores 100%. The specifics are component dependant and take into account factors such as capacity where larger drives tend to be cheaper per GB and therefore offer better value. The value rating tends to favour additional performance over reduced price because when considering a $100 component most consumers would rather pay an extra $15 for 10% more performance.
Full details for each component type are linked below:
CPU details » GPU details » SSD details » HDD details » USB details »

The Best.
Intel Core i7-8700K $330Nvidia GTX 1070 $86Samsung 850 Evo 250GB $85
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $69Samsung 850 Evo 500GB $139
AMD Ryzen 5 1600 $189AMD RX 480 $400Samsung 850 Pro 256GB $140
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $198SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 7200.14 1TB $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $205SanDisk Extreme 16GB $18
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