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AMD Piledriver Family 15h is a microarchitecture developed by AMD as the second-generation successor to Bulldozer. It targets desktop, mobile and server markets. The changes over Bulldozer are incremental. Piledriver uses the same "module" design. Its main improvements are to branch prediction and FPU/integer scheduling, along with a switch to hard-edge flip-flops to improve power consumption. This resulted in clock speed gains of 8–10% and a performance increase of around 15% with similar power characteristics. FX-9590 is around 30–35% faster than Bulldozer-based FX-8150, mostly because of higher clock speed. Products based on Piledriver were first released on 15 May 2012 with the AMD Accelerated Processing Unit (APU), code-named Trinity, series of mobile products. APUs aimed at desktops followed in early October 2012 with Piledriver-based FX-series CPUs released later in the month.〔(【引用サイトリンク】url=http://www.amd.com/us/press-releases/Pages/press-release-2012oct2.aspx )〕〔(【引用サイトリンク】url=http://www.amd.com/us/press-releases/Pages/new-amd-fx-line-2012oct23.aspx )〕 Opteron server processors based upon Piledriver were announced in early December 2012. == Design == Piledriver includes improvements over the original ''Bulldozer'' microarchitecture: * Clustered Multi-Thread * Higher clock rates * Instructions per clock (IPC) improvements * Lower power consumption and temperatures * Turbo Core 3.0 * Faster integrated memory controller (IMC) * Fixed hardware divider * Improved branch prediction and prefetching * Improved floating-point and integer scheduling * Support for Advanced Vector Extensions (AVX)1.1, FMA3, FMA4, F16C, BMI1 and TBM * Larger L1 translation lookaside buffers (TLB) and L2 efficiency improvements * Switch to hard-edge flip-flops, allowing a decrease in power consumption * Cyclos resonant clock mesh (RCM) technology * 17–220 W thermal design power (TDP) * Video Coding Engine 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Piledriver (microarchitecture)」の詳細全文を読む スポンサード リンク
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