<p class="MsoNormal" align="left" style="text-align: left; line-height: 18pt; margin: 18pt 0cm 0pt; word-break: break-all; mso-pagination: widow-orphan"><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-微软雅黑; mso-bidi-宋体; mso-font-kerning: 0pt">本文轉貼自 : <a href="http://news.mydrivers.com/1/245/245332_all.htm" title="http://news.mydrivers.com/1/245/245332_all.htm" >http://news.mydrivers.com/1/245/245332_all.htm</a><font size="3"><span lang="ZH-TW" style=""PMingLiU","serif"; color: blue; mso-bidi-font-size: 11.0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW"><br /> </span></font></span><font size="3"><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW"><br /> 我們見識到了第一款基於 ARM v8 架構的處理器產品,</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">ARM </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">將其命名為 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">“Cortex-A50” </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">系列。</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-微软雅黑; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW"><o:p></o:p></span></font></p> <p class="MsoNormal" align="left" style="text-align: left; line-height: 18pt; margin: 18pt 0cm 0pt; word-break: break-all; mso-pagination: widow-orphan"><font size="3"><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW"> Cortex - A50 </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">系列首批包含 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">Cortex - A53</span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">、</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">Cortex - A57 </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">兩款型號</span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">,其中</span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">前者是 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">ARM 效</span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">能最高的應用處理器,號稱可在同樣的功耗水準下達到當今頂級智慧手機的效能的三倍;後者是世界上能效最高、面積最小的 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">64 </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">位元處理器,同等效能下能效是當今高端智慧手機的三倍</span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">。</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-微软雅黑; mso-bidi-宋体; mso-font-kerning: 0pt"><o:p></o:p></span></font></p> <p class="MsoNormal" align="left" style="text-align: left; line-height: 18pt; margin: 18pt 0cm 0pt; word-break: break-all; mso-pagination: widow-orphan"><font size="3"><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW"> 二者可以分別獨立使用,也能以 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">ARM big.LITTLE </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">的配置協同工作,兼顧高效能與低功耗。</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-微软雅黑; mso-bidi-宋体; mso-font-kerning: 0pt"><o:p></o:p></span></font></p> <p class="MsoNormal" align="left" style="text-align: left; line-height: 18pt; margin: 18pt 0cm 0pt; word-break: break-all; mso-pagination: widow-orphan"><font size="3"><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW"> Cortex - A50 </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">系列支援 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">ARM AArch64 64 </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">位元指令集,並向下相容 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">AArch32 32 </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">位元指令集,</span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">核心數量可以從 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">1 </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">個到 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">4 </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">個不等</span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">,均整合了 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">NEON SIMD </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">引擎、</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">ARM CoreSight </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">多核心調試與追蹤模組、</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">128-bit AMBA ACE </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">一致性匯流排介面,還可選加密加速單元,能將加密軟體的運行速度提升最多 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">10 </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">倍。</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-微软雅黑; mso-bidi-宋体; mso-font-kerning: 0pt"><o:p></o:p></span></font></p> <p class="MsoNormal" align="left" style="text-align: left; line-height: 18pt; margin: 18pt 0cm 0pt; word-break: break-all; mso-pagination: widow-orphan"><font size="3"><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW"> 兩款型號的不同之處在於虛擬物理定址和第一、二層 cache</span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">:</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">A53 </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">支援 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">40 </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">位元的虛擬物理定址,第一層 cache 每個核心有 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">8 - 64 KB </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">資料、</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">8 - 64 KB </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">指令,第二層 cache 則共用 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">128 KB - 2 MB</span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">;</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">A57 </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">的虛擬物理定址延伸到 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">44 </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">位元,每核心第一層資料 cache 為 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">32 KB</span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">、第一層指令 cache 為</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">48 KB</span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">,第二層 cache 則是 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">512 KB - 2 MB</span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">。</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-微软雅黑; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW"><o:p></o:p></span></font></p> <p class="MsoNormal" align="left" style="text-align: left; line-height: 18pt; margin: 18pt 0cm 0pt; word-break: break-all; mso-pagination: widow-orphan"><font size="3"><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW"> 二者的第一層指令 cache 和第二層 cache 均支援 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">ECC</span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">,</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">A57 </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">的第一層 cache 還支援雙錯檢測 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">(DED)</span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">配對。</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-微软雅黑; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW"><o:p></o:p></span></font></p> <p class="MsoNormal" align="left" style="text-align: left; line-height: 18pt; margin: 18pt 0cm 0pt; word-break: break-all; mso-pagination: widow-orphan"><font size="3"><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW"> 往深層次說,</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">Cortex - A53 </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">是簡單的循序執行、</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">8 </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">級流水線,</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">Cortex - A57 </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">則是複雜的亂序執行、多發射流水線。</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-微软雅黑; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW"><o:p></o:p></span></font></p> <p class="MsoNormal" align="left" style="text-align: left; line-height: 18pt; margin: 18pt 0cm 0pt; word-break: break-all; mso-pagination: widow-orphan"><font size="3"><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW"> 至於運行頻率,取決於授權廠商的意願和具體所用的 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">COMS</span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">、</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">FinFET </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">製程,不過至少也是從 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">28nm </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">起步</span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">,最好是 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">20nm</span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">,然後是 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">14nm</span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">,</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">ARM </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">只是說可以達到數 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">GHz</span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">。</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-微软雅黑; mso-bidi-宋体; mso-font-kerning: 0pt"><a href="http://news.mydrivers.com/1/207/207919.htm" title="http://news.mydrivers.com/1/207/207919.htm" ><span lang="ZH-TW" style=""PMingLiU","serif"; color: blue; mso-bidi-font-size: 11.0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">一年前宣佈時給出的資料是最高</span><span style="color: blue; mso-bidi-font-size: 11.0pt; mso-fareast-; mso-fareast-language: ZH-TW">3GHz</span></a></span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">。</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-微软雅黑; mso-bidi-宋体; mso-font-kerning: 0pt"><o:p></o:p></span></font></p> <p class="MsoNormal" align="left" style="text-align: left; line-height: 18pt; margin: 18pt 0cm 0pt; word-break: break-all; mso-pagination: widow-orphan"><font size="3"><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW"> 已經購買 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">Cortex - A50 </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">系列授權的廠商包括:</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">AMD</span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">、博通、</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">Calxeda</span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">、海思</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">(HiSilicon)</span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">、三星、意法半導體。</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">ARM </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">預計設計產品會在 </span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-; mso-bidi-宋体; mso-font-kerning: 0pt; mso-fareast-language: ZH-TW">2014 </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-bidi-宋体; mso-font-kerning: 0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">年出貨,</span><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-微软雅黑; mso-bidi-宋体; mso-font-kerning: 0pt"><span style="color: blue; mso-bidi-font-size: 11.0pt; mso-fareast-; mso-fareast-language: ZH-TW">AMD</span><span lang="ZH-TW" style=""PMingLiU","serif"; color: blue; mso-bidi-font-size: 11.0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">昨日也已宣佈會在 </span><span style="color: blue; mso-bidi-font-size: 11.0pt; mso-fareast-; mso-fareast-language: ZH-TW">2014 </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: blue; mso-bidi-font-size: 11.0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">年推出 </span><span style="color: blue; mso-bidi-font-size: 11.0pt; mso-fareast-; mso-fareast-language: ZH-TW">64</span><span lang="ZH-TW" style=""PMingLiU","serif"; color: blue; mso-bidi-font-size: 11.0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">位元 </span><span style="color: blue; mso-bidi-font-size: 11.0pt; mso-fareast-; mso-fareast-language: ZH-TW">ARM </span><span lang="ZH-TW" style=""PMingLiU","serif"; color: blue; mso-bidi-font-size: 11.0pt; mso-ascii-; mso-hansi-; mso-fareast-language: ZH-TW">架構的 </span><span style="color: blue; mso-bidi-font-size: 11.0pt; mso-fareast-; mso-fareast-language: ZH-TW">Opteron 處理器。</span></span></font><span lang="EN-US" style=""Verdana","sans-serif"; color: #333333; mso-bidi-font-size: 10.5pt; mso-fareast-微软雅黑; mso-bidi-宋体; mso-font-kerning: 0pt"><br /> </span></p>
本文轉貼自 : http://news.mydrivers.com/1/245/245332_all.htm
我們見識到了第一款基於 ARM v8 架構的處理器產品,ARM 將其命名為 “Cortex-A50” 系列。
Cortex - A50 系列首批包含 Cortex - A53、Cortex - A57 兩款型號,其中前者是 ARM 效能最高的應用處理器,號稱可在同樣的功耗水準下達到當今頂級智慧手機的效能的三倍;後者是世界上能效最高、面積最小的 64 位元處理器,同等效能下能效是當今高端智慧手機的三倍。
二者可以分別獨立使用,也能以 ARM big.LITTLE 的配置協同工作,兼顧高效能與低功耗。
Cortex - A50 系列支援 ARM AArch64 64 位元指令集,並向下相容 AArch32 32 位元指令集,核心數量可以從 1 個到 4 個不等,均整合了 NEON SIMD 引擎、ARM CoreSight 多核心調試與追蹤模組、128-bit AMBA ACE 一致性匯流排介面,還可選加密加速單元,能將加密軟體的運行速度提升最多 10 倍。
兩款型號的不同之處在於虛擬物理定址和第一、二層 cache:A53 支援 40 位元的虛擬物理定址,第一層 cache 每個核心有 8 - 64 KB 資料、8 - 64 KB 指令,第二層 cache 則共用 128 KB - 2 MB;A57 的虛擬物理定址延伸到 44 位元,每核心第一層資料 cache 為 32 KB、第一層指令 cache 為48 KB,第二層 cache 則是 512 KB - 2 MB。
二者的第一層指令 cache 和第二層 cache 均支援 ECC,A57 的第一層 cache 還支援雙錯檢測 (DED)配對。
往深層次說,Cortex - A53 是簡單的循序執行、8 級流水線,Cortex - A57 則是複雜的亂序執行、多發射流水線。
至於運行頻率,取決於授權廠商的意願和具體所用的 COMS、FinFET 製程,不過至少也是從 28nm 起步,最好是 20nm,然後是 14nm,ARM 只是說可以達到數 GHz。一年前宣佈時給出的資料是最高3GHz。
已經購買 Cortex - A50 系列授權的廠商包括:AMD、博通、Calxeda、海思(HiSilicon)、三星、意法半導體。ARM 預計設計產品會在 2014 年出貨,AMD昨日也已宣佈會在 2014 年推出 64位元 ARM 架構的 Opteron 處理器。