SiSoftware Sandra是一款可运行在32bit和64bit Windows操作系统上的分析软件，它可以对于系统进行方便、快捷的基准测试，还可以用于查看系统的软件、硬件等信息。SiSoftware Sandra所有的基准测试都针对SMP和SMT进行了优化，最高可支持32/64路平台。我们利用了其中多个性能测试模块对于被测系统的性能进行了快速的测试。
SiSoftware Sandra Pro Business 2010 | ||
| 产品名称 | 华硕RS520-E6/RS8 服务器 | 基准X5570服务器 |
| 平台类型 | 双路Intel Westmere-EP | 双路Intel Nehalem-EP |
| Processor Arithmetic Benchmark 处理器算术运算测试 | ||
|---|---|---|
| Dhrystone ALU | 163.87GIPS | 139.6GIPS |
| Dhrystone ALU vs SPEED | 58.52MIPS/MHz | 48.75MIPS/MHz |
| Whetstone iSSE3 | 115GFLOPS | 121.13GFLOPS |
| Dhrystone iSSE3 vs SPEED | 41.09MFLOPS/MHz | 42.29MFLOPS/MHz |
| Processor Multi-Media Benchmark 处理器多媒体测试 | ||
| Multi-Media Int x16 iSSE4.1 | 298MPixel/s | 296.85MPixel/s |
| Multi-Media Int x16 iSSE4.1 vs SPEED | 106.40kPixels/s/MHz | 101.21kPixel/s/MHz |
| Multi-Media Float x8 iSSE2 | 222.44MPixel/s | 228.24MPixel/s |
| Multi-Media Float x8 iSSE2 vs SPEED | 79.44kPixels/s/MHz | 77.82kPixels/s/MHz |
| Multi-Media Double x4 iSSE2 | 120.72MPixel/s | 125.88MPixel/s |
| Multi-Media Double x4 iSSE2 vs SPEED | 43.12kPixels/s/MHz | 42.92kPixels/s/MHz |
| Multi-Core Efficiency Benchmark 处理器效能测试 | ||
| Inter-Core Bandwidth | 88.8GB/s | 75.61GB/s |
| Inter-Core Bandwidth vs SPEED | 23.86MB/s/MHz | 26.40MB/s/MHz |
| Inter-Core Latency(越小越好) | 18ns | 16ns |
| Inter-Core Latency vs SPEED(越小越好) | 0.01ns/MHz | 0.01ns/MHz |
| .NET Arithmetic Benchmark .NET算术运算测试 | ||
| Dhrystone .NET | 30GIPS | 32.13GIPS |
| Dhrystone .NET vs SPEED | 10.74MIPS/MHz | 11.22MIPS/MHz |
| Whetstone .NET | 75.9GFLOPS | 76.45GFLOPS |
| Whetstone .NET vs SPEED | 27.10MFLOPS/MHz | 26.69MFLOPS/MHz |
| .NET Multi-Media Benchmark .NET多媒体测试 | ||
| Multi-Media Int x1 .NET | 55.5MPixel/s | 62.28MPixel/s |
| Multi-Media Int x1 .NET vs SPEED | 19.82kPixels/s/MHz | 21.23kPixels/s/MHz |
| Multi-Media Float x1 .NET | 23.36MPixel/s | 26.19MPixel/s |
| Multi-Media Float x1 .NET vs SPEED | 8.34kPixels/s/MHz | 8.93kPixels/s/MHz |
| Multi-Media Double x1 .NET | 43.28MPixel/s | 51.45MPixel/s |
| Multi-Media Double x1 .NET vs SPEED | 15.46kPixels/s/MHz | 17.54kPixels/s/MHz |
这里对比出了一个非常有趣的内容。虽然本次测试的华硕RS520-E6/RS8使用的是新一代的至强E5640处理器，但是相比上一代的至强X5570来说并没有绝对的优势，我们在表格中将其领先的内容标红了，但是从数量上来看并不是很多。
虽然E5640是新产品，但是它在核心和线程数量上与X5570持平，而且在主频上还落后越0.25GHz。更重要的是Westmere-EP相比Nehalem-EP来说在架构上并非有太大的革新。因此，仅仅借助于额外的4MB三级缓存和新品优势，E5640在有限的几个项目中却的了优势，但是由于主频较低，我们可以看到优势的幅度都非常有限。
