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 $310AMD RX 480 $205Samsung 850 Evo 250GB $93
AMD Ryzen 7 1700 $330Nvidia GTX 1070 $370Samsung 850 Pro 256GB $130
Intel Core i5-7600K $215Nvidia GTX 1060-6GB $235Samsung 850 Evo 500GB $160
HDDRAMUSB
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Seagate Barracuda 3TB (2016) $90G.SKILL Trident Z DDR4 3200 C14 4x16GB $430SanDisk Extreme 32GB $26
Seagate Barracuda 7200.14 1TB $50Corsair Vengeance LPX DDR4 3200 C16 2x8GB $135SanDisk Ultra Fit 32GB $9
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