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鎮ㄥソ锛屾杩庝締鍒扮董搴浕瀛愬競鍫寸恫(w菐ng) 鐧婚寗 | 鍏嶈不(f猫i)娉ㄥ唺

SpeedStep鎶�琛�(sh霉)
闁辫畝锛�5362鏅�(sh铆)闁擄細2011-06-17 14:42:54

銆�銆�Speedstep鎶�琛�(sh霉)鏄�氶亷闄嶄綆CPU閬�(y霉n)琛屼富闋讳締閬�(d谩)鍒伴檷浣庡姛鑰楃殑鎶�琛�(sh霉)锛屾槸Intel灏堢偤绛嗚鏈珻PU闁嬬櫦(f膩)鐨勶紝瀹冧娇寰楃瓎瑷樻湰CPU楂橀�熺櫦(f膩)灞�锛屼娇绛嗚鏈殑鍔熻兘瓒婁締瓒婃帴杩戣嚭(t谩i)寮忔(j墨)銆係peedStep鎶�琛�(sh霉)鏀寔鍙互鍕�(d貌ng)鎱�(t脿i)澧炲挤(qi谩ng)鎳�(y墨ng)鐢ㄦ�ц兘鍜岄浕鍔涘埄鐢ㄧ巼銆�

鐢变締

銆�銆�鍦ㄧ櫦(f膩)甯僁ixon涓嶄箙鍚�锛孖ntel鍏徃鍙堝悜澶栫晫鍏竷浜嗕竴绋亱(y霉n)鐢ㄥ湪绛嗚鏈浕鑵PU涓婂叿鏈夊壍(chu脿ng)涓栫磤(j矛)鎰忕京鐨勬柊鎶�琛�(sh霉)锛孖ntel鍏徃鏈熸湜閲囩敤閫欑ó鎶�琛�(sh霉)渚嗙府鐭瓎瑷樻湰闆昏叇CPU鑸囪嚭(t谩i)寮忔(j墨)CPU涔嬮枔鎬ц兘涓婄殑宸窛銆傞�欑ó鏂版妧琛�(sh霉)灏辨槸涓�绋洐妯″紡绉诲嫊(d貌ng)铏曠悊鍣ㄦ妧琛�(sh霉)锛堜唬铏�(h脿o)鐐篏eyserville锛夆�斺�斾娇绛嗚鏈浕鑵︾殑CPU鍦ㄦ暣姗�(j墨)浣跨敤澶栨帴闆绘簮鐨勬檪(sh铆)鍊欏伐浣滃湪杓冮珮鐨勯牷鐜�锛岃�岀暥(d膩ng)鏁存(j墨)浣跨敤闆绘睜渚涢浕鏅�(sh铆)鑷嫊(d貌ng)闄嶄綆宸ヤ綔闋荤巼鍜屽姛鑰椾互澧炲姞闆绘睜鐨勭簩(x霉)鑸檪(sh铆)闁�銆傞毃鍚�锛岄�欑ó鎶�琛�(sh霉)鍦�2000骞村垵灏辫浣跨敤鍦�600MHz鍜�650MHz鐗堟湰鐨凱entium III铏曠悊鍣ㄤ笂锛屽苟棣栨浠peedStep鍚嶇ū浜浉銆�

銆�銆�鏈�鍒濓紝SpeedStep鎶�琛�(sh霉)鑳界偤绉诲嫊(d貌ng)鐢ㄦ埗鎻愪緵鍏╃ó鎬ц兘妯″紡锛氭�ц兘妯″紡鍜岄浕姹犲劒(y艒u)鍖栨ā寮�銆傜暥(d膩ng)绯荤当(t菕ng)鑷嫊(d貌ng)閬告搰妯″紡鏅�(sh铆)锛屽畠鏈�(hu矛)鏍规摎(j霉)鐝�(xi脿n)鍦ㄩ浕鑵︽槸浣跨敤澶栨帴闆绘簮閭勬槸闆绘睜渚涢浕渚嗛伕鎿囬�欏叐绋ā寮�銆傜暥(d膩ng)浣跨敤闆绘睜鍎�(y艒u)鍖栨ā寮忔檪(sh铆)锛岃檿鐞嗗櫒鍍呭儏宸ヤ綔鍦�500MHz 1.35V锛屽緸鑰岃兘鏇村ぇ闄愬害鐨勯檷浣庤兘鑰楀欢闀烽浕姹犱娇鐢ㄦ檪(sh铆)闁撱�傜暥(d膩ng)鐢ㄦ埗鍦ㄩ浕鑵︿笂鎻掑叆澶栨帴闆绘簮鍚�锛岀郴绲�(t菕ng)鏈�(hu矛)鑷嫊(d貌ng)寰楄烦杞�(zhu菐n)鍒版�ц兘妯″紡锛屼娇铏曠悊鍣ㄧ殑宸ヤ綔闆诲涓婂崌鍒�1.6V锛岄牷鐜囬仈(d谩)鍒板��銆傞�欑ó妯″紡闁撶殑杞�(zhu菐n)鍖栭�熷害闈炲父寰楀揩鈥斺�斿儏鍍呯偤1/2000绉掞紝浠ヨ嚧鐢ㄦ埗鏍规湰鎰熻涓嶅埌閫欑ó杞�(zhu菐n)鍖�銆傚氨绠楁槸灏�(du矛)鎬ц兘瑕佹眰鏁忔劅鐨勭▼搴忎締瑾紙姣斿瑾挱鏀綝VD闆诲奖锛�锛岄�欑ó杞�(zhu菐n)鎻涢亷绋嬩篃绲叉涓嶅奖闊跨▼搴忕殑閬�(y霉n)琛屻�傞櫎姝や箣澶�锛岀敤鎴堕倓鍙互鑷繁瑷�(sh猫)缃ā寮忥細鍙互鍦ㄤ娇鐢ㄩ浕姹犵殑鎯呮硜涓嬩娇鐢ㄦ�ц兘妯″紡鎴栨槸鍦ㄤ娇鐢ㄥ鎺ラ浕婧愮殑鎯呮硜涓嬩娇鐢ㄩ浕姹犲劒(y艒u)鍖栨ā寮�銆傝�岄�欎竴鍒囧儏鍍呴渶瑕佺敤鎴朵娇鐢ㄩ紶妯�(bi膩o)鍦ㄥ睆骞曚笂閬镐腑鏌愬��(g猫)妯″紡锛岃�屼笉鐢ㄩ噸鍟熼浕鑵�銆�

銆�銆�Intel鍏徃鐐洪�欓爡(xi脿ng)鎶�琛�(sh霉)闁嬬櫦(f膩)浜嗗ぇ閲忚粺浠跺拰纭欢渚嗙⒑淇濋�欑óSpeedStep鎶�琛�(sh霉)鑳藉湪闆昏叇閲屾祦鏆㈢殑閬�(y霉n)琛�锛屽叾涓寘鎷簡绯荤当(t菕ng)鐨凚IOS,鐢ㄦ埗绲傜杌熶欢锛孉SIC鎺у埗鍜岃姱鐗囩祫鐨勬敮鎸佺瓑銆傚皪(du矛)浜庢搷浣滅郴绲�(t菕ng)鎴栨槸杌熶欢绋嬪簭渚嗚锛屽叾鏈韩骞朵笉闇�瑕佷綔鍑轰粈涔堟敼鍕�(d貌ng)灏辫兘澶犲緢鏂逛究鐨勪娇鐢ㄩ�欑ó鎶�琛�(sh霉)銆�

SpeedStep鐨勭郴绲�(t菕ng)妲�(g貌u)鎴�

銆�銆�SpeedStep绯荤当(t菕ng)涓昏鐢辫嚜鍕�(d貌ng)闆绘簮璀�(sh铆)鍒ョ郴绲�(t菕ng)鍜岃嚜鍕�(d貌ng)闆诲瑾�(di脿o)鏁寸郴绲�(t菕ng)绲勬垚锛屽叾涓寘鎷郴绲�(t菕ng)BIOS銆佺祩绔敤鎴舵帴鍙ｈ粺浠�銆佸垏鎻涢枊闂�(gu膩n)鎺у埗ASIC鍜岃姱鐗囩祫銆傜暥(d膩ng)绛嗚鏈浕鑵﹂亱(y霉n)琛屽湪闆绘睜鍎�(y艒u)鍖栨ā寮忔檪(sh铆)锛孋PU鐨勯浕澹撶偤1.35V锛岄牷鐜囩偤500MHz锛岄�欐檪(sh铆)锛屽皣绛嗚鏈浕鑵︽帴鍒颁氦娴侀浕婧�锛屽湪灏忎簬1/2000绉掔殑鏅�(sh铆)闁撻噷锛岃嚜鍕�(d貌ng)闆绘簮璀�(sh铆)鍒ョ郴绲�(t菕ng)鍜岃嚜鍕�(d貌ng)闆诲瑾�(di脿o)鏁寸郴绲�(t菕ng)灏囦娇CPU鐨勯浕澹撹嚜鍕�(d貌ng)澧炲姞鍒�1.6V锛岄牷鐜囨寜CPU鐨勪笉鍚岃�屽垎鍒ユ彁楂樺埌600MHz鎴�650MHz銆傜敱姝や笉闆ｇ湅鍑�锛孲peedStep鎶�琛�(sh霉)鑳借畵CPU鍦ㄦ�ц兘妯″紡鍜岄浕姹犲劒(y艒u)鍖栨ā寮忎箣闁撻毃鎰忓湴鍒囨彌鎴栨寜鐢ㄦ埗鐨勫懡浠ら��(j矛n)琛屽垏鎻�銆傝�屾�ц兘鍒囨彌鏅�(sh铆)锛孲peedStep鎶�琛�(sh霉)鍙皣铏曠悊鍣ㄧ殑鍔熺巼闄嶄綆40%锛屽悓鏅�(sh铆)浠嶄繚鎸�80%鐨勬�ц兘銆�

鐧�(f膩)灞曟绋�

銆�銆�1994骞�锛孖ntel 闁嬬櫦(f膩)鍑篤oltageReduction(闆诲鑷嫊(d貌ng)瑾�(di脿o)绡�(ji茅))鎶�琛�(sh霉)锛屼富瑕佸姛鑳芥槸鏍规摎(j霉)绛嗚鏈殑閬�(y霉n)琛屾儏娉佽嚜鍕�(d貌ng)瑾�(di脿o)绡�(ji茅)闆诲锛屾帶鍒跺姛鑰�銆�

銆�銆�1996骞撮枊鐧�(f膩)浜咰lockGating(闋荤巼瑾�(di脿o)绡�(ji茅))鎶�琛�(sh霉)锛屼富瑕佸姛鑳芥槸鑷嫊(d貌ng)瑾�(di脿o)绡�(ji茅)CPU涓婚牷锛屾帶鍒剁櫦(f膩)鐔遍噺銆�

銆�銆�1997骞撮枊鐧�(f膩)浜哘uickstart鎶�琛�(sh霉)锛屼富瑕佷綔鐢ㄦ槸鍦–PU绌洪枒鏅�(sh铆)浣垮畠閫�(j矛n)鍏ヤ紤鐪犵媭鎱�(t脿i)锛屾笡灏戠啽閲忕殑鐢�(ch菐n)鐢熴�傞浼间簬CPU闄嶆韩杌熶欢鐨勪綔鐢�銆�

銆�銆�1999骞达紝SpeedStep瑾曠敓锛岄泦閫欎笁绋妧琛�(sh霉)鐐轰竴楂斻�係peedStep鎶�琛�(sh霉)浣挎偍鑳藉鍦ㄧ瓎瑷樻湰闆昏叇涓婂畾鍒堕珮鎬ц兘瑷�(j矛)绠�銆傜瓎瑷樻湰闆昏叇浣跨敤浜ゆ祦闆伙紙AC锛夋檪(sh铆)锛岃兘澶犻亱(y霉n)琛屾渶寰�(f霉)闆滅殑鍟嗘キ(y猫)鍜屼簰鑱�(li谩n)缍�(w菐ng)鎳�(y墨ng)鐢紝閫熷害鎺ヨ繎鑷�(t谩i)寮忔(j墨)绯荤当(t菕ng)鐨勬按骞�銆傞噰鐢ㄩ浕姹犱緵闆绘檪(sh铆)锛岃檿鐞嗗櫒灏囪嚜鍕�(d貌ng)闄嶄綆闋荤巼(閫氶亷鏀硅畩绺界窔閫熺巼)锛屽悓鏅�(sh铆)涔熺浉鎳�(y墨ng)闄嶄綆鑳借��锛屽緸鑰屽湪淇濇寔楂樻�ц兘鐨勫悓鏅�(sh铆)寤堕暦闆绘睜澹藉懡銆傛墜鍕�(d貌ng)瑷�(sh猫)缃兘澶犱娇鎮ㄥ湪閲囩敤闆绘睜渚涢浕鏅�(sh铆)灏囬牷鐜囪(di脿o)鏁村埌銆�

銆�銆�澧炲挤(qi谩ng)鍨嬭嫳鐗圭埦SpeedStep鎶�琛�(sh霉)鑳藉鏍规摎(j霉)铏曠悊鍣ㄩ渶瑕佸湪鍏╃ó鎬ц兘妯″紡涔嬮枔瀵�(sh铆)鏅�(sh铆)閫�(j矛n)琛岄浕澹撳拰闋荤巼鐨勫嫊(d貌ng)鎱�(t脿i)鍒囨彌銆傞�欎富瑕侀�氶亷鍒囨彌绯荤当(t菕ng)绺界窔姣旂巼銆佸収(n猫i)鏍稿伐浣滈浕澹撲互鍙婃牳蹇冭檿鐞嗗櫒鐨勯�熷害渚嗗(sh铆)鐝�(xi脿n)锛岀劇闇�閲嶆柊瑷�(sh猫)缃郴绲�(t菕ng)銆�

銆�銆�绨″柈鐨勮瑳SpeedStep鎶�琛�(sh霉)灏辨槸鍦ㄧ瓎瑷樻湰闆昏叇浣跨敤闆绘睜渚涢浕鏅�(sh铆)锛屾牴鎿�(j霉)闇�瑕�?ji菐ng)瑷嶣(t脿i)鍒囨彌宸ヤ綔闆诲鍜屽伐浣滈�熷害锛屼互閬�(d谩)鍒扮瘈(ji茅)鐪侀浕鍔涳紝寤堕暦宸ヤ綔鏅�(sh铆)闁撶殑鐩殑銆�

鏂拌垔浠嬬垂

銆�銆�浠peedStep鎶�琛�(sh霉)锛岀啊鍠殑瑾�锛屽氨鏄暥(d膩ng)浣跨敤AC闆绘簮鎴栭浕姹犻﹨(q奴)鍕�(d貌ng)鏅�(sh铆)锛岃嚜鍕�(d貌ng)灏�(du矛)CPU鐨勫伐浣滈浕澹撳拰宸ヤ綔闋荤巼閫�(j矛n)琛屽垏鎻�銆傞噰鐢⊿peedStep鎶�琛�(sh霉)鐨凜PU鏈夊叐绋笉鍚岀殑宸ヤ綔妯″紡:浣跨敤AC闆绘簮鏅�(sh铆)鐨勬�ц兘妯″紡(Maximum Performace Mode)鍜屼娇鐢ㄩ浕姹犳檪(sh铆)鐨勯浕姹犲劒(y艒u)鍖栨ā寮�(BatteryOptimized Mode)锛岀瓎瑷樻湰鏍规摎(j霉)闆绘簮鎯呮硜鑷嫊(d貌ng)鍒囨彌宸ヤ綔妯″紡銆�

銆�銆�绗簩浠peedStep(Enhanced SpeedStep)鎶�琛�(sh霉)鍓囧彲浠ユ牴鎿�(j霉)CPU鐨勮矤(f霉)鑽锋儏娉佸湪鍏╃ó鎬ц兘妯″紡涔嬮枔瀵�(sh铆)鏅�(sh铆)閫�(j矛n)琛岄浕澹撳拰闋荤巼鐨勫嫊(d貌ng)鎱�(t脿i)鍒囨彌锛屼篃灏辨槸瑾彲浠ュ湪闆绘睜椹�(q奴)鍕�(d貌ng)鏅�(sh铆)鏍规摎(j霉)CPU璨�(f霉)鑽锋儏娉佽嚜鍕�(d貌ng)鍒囨彌鍒板伐浣滈牷鐜囧拰闆诲锛屼篃鍙互鍦ㄦ帴AC闆绘簮鏅�(sh铆)鏍规摎(j霉)CPU璨�(f霉)鑽锋儏娉佽嚜鍕�(d貌ng)鍒囨彌鍒板伐浣滈牷鐜囧拰闆诲銆�

銆�銆�绗笁浠peedStep(EnhancedIntel SpeedStep Technology)鎶�琛�(sh霉)鐩＄浠嶅彧鏈夊叐绋熀鏈伐浣滄ā寮�锛屼絾鍚屾檪(sh铆)閭勫叿鏈夊绋腑闁撴ā寮忥紝鏀寔澶氱ó闋荤巼閫熷害鑸囬浕澹撹ō(sh猫)缃�(鐢盋PU鐨勯浕澹撹(di脿o)鏁存(j墨)鍒朵締鎺у埗)锛屾牴鎿�(j霉)CPU鐣�(d膩ng)鏅�(sh铆)璨�(f霉)鑽风殑寮�(qi谩ng)搴﹁嚜鍕�(d貌ng)鍒囨彌宸ヤ綔妯″紡銆�

缍韩闆诲瓙閫�锛岄浕瀛愮煡璀�(sh铆)锛屼竴鏌ョ櫨閫�锛�

宸叉敹閷勮姊�160665鍊�(g猫)