価格：SSDとHDD

SSDの価格はHDDよりも高く（ギガバイトあたり約2倍）、SSDの価格は近年下がっていますが、すぐに変わることはないでしょう。SSDの原材料はメーカーにとってより高価であり、デバイスの構造ははるかに複雑です。

HDDには1つの均一な金属スラブが含まれており、ストレージスペースは、表面積の大きさまたは書き込み可能な小ささによってのみ制限されます。
これらのトランジスタがこれまで以上に微細なサイズに縮小されていることを考えると、SSDがギガバイトあたりHDDの2倍しか高価でないことは非常に驚くべきことです。
価格を高騰させるもう1つの要因は需要です。多くの人は、SSDを必要としないだけです。需要が少ない場合、メーカーは必要な供給を提供したり、より競争力のある価格を設定したりするために競争する必要はありません。したがって、GBあたりのSSDとHDDの価格はほぼ安定しています。
安価なSSDは製造が不十分な場合が多いことを覚えておいてください。見苦しいSSDになってしまわないように、認識できないメーカーや信頼できないメーカーを避けてください。


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