A The maximum power, measured in watts, that a CPU may draw
The maximum amount of heat a CPU cooling system will be required to dissipate, or in other words a CPU's peak power consumption. Typical desktop processors run at TDP's of between 50 and 100 watts. For laptops and other portable computers low TDP's are essential (often between 5 and 20 watts) as they prolong battery life. Aside from the power savings offered by CPUs with low TDP's there are other factors such as cooling requirement and noise that should also be taken into account. The lower the TDP the smaller the required fan which normally results in less noise. Another advantage of a low TDP is that there is less dependence on other components such as heavy and expensive power supplies and there is less likely to be damage to other components caused by over-heating.

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CPUGPUSSD
Intel Core i7-7700K $280Nvidia GTX 1070 $430Samsung 850 Evo 250GB $88
AMD Ryzen 7 1700 $290Nvidia GTX 1060-6GB $275Samsung 850 Evo 500GB $140
Intel Core i5-7600K $224AMD RX 480 $400Samsung 850 Pro 256GB $110
HDDRAMUSB
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Seagate Barracuda 7200.14 1TB $52Corsair Vengeance LPX DDR4 3200 C16 2x8GB $220SanDisk Ultra Fit 32GB $12
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