E7500 vs G620 performance comparison 性能比较

来源:百度文库 编辑:超级军网 时间:2024/05/03 06:36:41


http://www.cpu-world.com/Compare ... Dual-Core_G620.html


The charts in the section below show performance of Core 2 Duo E7500 and Pentium G620 processors(SNB处理器) in different types of programs. The numbers for 'Single-threaded performance' and 'Multi-threaded performance' charts are calculated as an average of several related benchmarks, that you can view in the "Benchmarks" tab. Consequentally, performance in individual benchmarks may be higher or lower than what you see in the charts here. We also averaged the results for task type specific benchmarks and all-around performance benchmarks, and displayed them in the 'Overall performance' chart.



http://www.cpu-world.com/Compare ... Dual-Core_G620.html


The charts in the section below show performance of Core 2 Duo E7500 and Pentium G620 processors(SNB处理器) in different types of programs. The numbers for 'Single-threaded performance' and 'Multi-threaded performance' charts are calculated as an average of several related benchmarks, that you can view in the "Benchmarks" tab. Consequentally, performance in individual benchmarks may be higher or lower than what you see in the charts here. We also averaged the results for task type specific benchmarks and all-around performance benchmarks, and displayed them in the 'Overall performance' chart.

主帖是INTEL处理器。不同指令结构的处理器也可以比较公平的比较,用开源编译器GCC作没有特殊优化的SPEC分数测试。强调开源编译器GCC优化可能比较好理解,特殊优化词条可以google相关文献,怎么说呢,特殊优化测试有利于宣传吧。现在SPEC  网站的分数都是特殊优化测试的。我发4图,具体情况不清楚,只知道P4的后期架构除流水线加长似乎没什么变化,powerpc G5是power 4架构处理器。本人只认识数据数字,数据分析我也搞不清楚。
intel的处理器还是得icc编译。

名猪斗屎 发表于 2014-1-2 12:04
intel的处理器还是得icc编译。


ICC编译器特殊优化太厉害了。。。。。。。。。。。。当然各家都这么干,就看谁家的功夫深
名猪斗屎 发表于 2014-1-2 12:04
intel的处理器还是得icc编译。


ICC编译器特殊优化太厉害了。。。。。。。。。。。。当然各家都这么干,就看谁家的功夫深
再放两张SPEC int 2000分数图,希望不因为SPEC 2000负载轻没办法说明问题。我不用事实说话,只是提供数据。
闲着没事,查了一下INTEL和IBM的SMT技术对性能的实际影响:酷睿2代提高13.8%和16%,power 7的4SMT似乎也只有20%左右,不知道那个power 8的8SMT的效果如何?
发两张负载数据类型操作图,比较奇怪,推土机的大部分整数数据负载有1%左右时钟浮点操作,power 7的整数数据负载浮点操作为0,都是一样的SPEC 2006测试程序.。。。。。不懂如山


再整两张SNB处理器的SPEC 2006性能分析论文图:增加计算功能单元的效果基本是0,完美的分支预测增加性能相当可观(这个完美预测的IPC会是多少?)

再整两张SNB处理器的SPEC 2006性能分析论文图:增加计算功能单元的效果基本是0,完美的分支预测增加性能相当可观(这个完美预测的IPC会是多少?)