Difference Between Apple A5 and TI OMAP4430 Processors

苹果A5 vsTI OMAP4430处理器s | TI OMAP 4430 vs Apple A5 Speed, Performance

Apple A5 and Texas Instruments OMAP4430 are System-on-Chips (SoC) deployed in consumer electronics by Apple and Texas Instruments (TI) respectively. In a Layperson’s term, a SoC is a computer on a single IC (Integrated Circuit, aka chip). Technically, a SoC is an IC that integrates typical components on a computer (such as microprocessor, memory, input/output) and other systems that cater electronic and radio functionalities. Both Apple A5 and TI OMAP4430 are Multiprocessor System-on-Chip (MPSoC), where the design uses multiprocessor architecture for exploiting the available computing power. Apple released A5 in March 2011 with its iPad2, and TI’s OMAP (abbreviation forOpen Multimedia Application Platform）4430大约在同一时间上市。

Typically, the major components of a SoC are its CPU (Central Processing Unit) and GPU (Graphics Processing Unit). The CPUs in both Apple A5 and TI OMAP4430 are based on ARM’s (Advanced RICS – Reduced Instruction Set Computer – Machine, developed byARM Holdings) v7 ISA (Instruction Set Architecture, which is used as the starting place of designing a processor), and manufactured using a semiconductor technology known as TSMC’s (Taiwan Semiconductor Manufacturing Company) 45nm.

Apple A5

A5 was first sold in March 2011, when Apple released its latest tablet, iPad2. Later Apple’s recent iPhone clone, iPhone 4S was released equipped with Apple A5. Apple A5 was designed by Apple and manufactured by Samsung on behalf of Apple. As opposed to its predecessor Apple A4, A5 has dual cores in its both CPU and GPU. Therefore, technically Apple A5 is not just a SoC, but also an MPSoC (Multi Processor System on Chip). A5’s dual core CPU is based on ARM Cotex-A9 processor (that uses the same ARM v7 ISA that is used by Apple A4), and its dual core GPU is based on PowerVR SGX543MP2 graphics processor. A5’s CPU is typically clocked at 1GHz (the clocking uses frequency scaling; therefore, the clock speed can change from 800MHz to 1GHz, based on the load, targeting power saving), and its GPU is clocked at 200MHz. A5 has both L1 (instruction and data) and L2 cache memories. A5 comes with a 512MB DDR2 memory package that is typically clocked at 533MHz.

ti omap 4430

OMAP 4430于2011年第一季度发布，据PDADB.NET称，它首先在BlackBerry的剧本中部署。许多其他设备，例如手机，PDA和平板电脑，后来使用了它。著名社区支持学术发展委员会的Pandaboard已将4430作为其主要处理器。OMAP 4430中使用的CPU是ARM的双核Cotex A9架构，使用的GPU是PowerVR的SGX540。在OMAP 4430中，CPU的时钟为1GHz，GPU的时钟为304MHz（与部署SGX540的其他SOC中的同一GPU相比，该GPU相对较高）。该芯片在其双核CPU中都装有L1和L2 CACHE层次结构，并用1GB DDR2低功率RAM包装。

A comparison between Apple A5 and TI OMAP4430 is tabulated below.

概括

总而言之，Apple A5和Ti OMAP4430都具有可比的功能。鉴于它们大约在同一时间被释放，因此他们利用了那个时代的类似技术。他们俩都使用相同的CPU架构（具有相似的时钟频率）。两者之间的主要区别在部署GPU时可以看到。尽管Apple A5使用了PowerVR的新双核GPU，但Ti OMAP4430使用了较旧的GPU，其时钟速率高度提高（Power SGX543MP2 @ 200MHz vs. PowerVR SGX540 @ 304MHz）。Apple A5使用的GPU配置有望胜过Ti Omap4430使用的GPU配置。尽管两者都具有完全相似的CPU缓存配置，但OMAP4430具有较大的（1GB与512MB）内存，因此，对于内存饥饿的应用程序而言，内存的表现将优于球。