Intel 5600 Series "Westmere EP" Xeons
Posted on: 03/16/2010 08:27 PM

SiSoftware Sandra 2010c Cryptography

Since the new Westmere EP Xeons have added support for the AES-NI instructions, I thought it would be fitting to include a cryptography benchmark to see how much difference the new instructions actually make. There are different ways to run a cryptography test, but I didn't want to have to setup ram disks or anything too crazy because I want the test to be portable from platform to platform. As such, I settled on Sandra's built-in cryptography benchmark.

SiSoft Sandra Cryptography - Westmere

Um. Yeah. Wow... I guess the new instructions make a bit of difference. With encryption bandwidth like that, whole disk encryption on the fly wouldn't impart much (if any) performance penalty at all.

CINEBENCH r11.5 x64

CINEBENCH is the free benchmarking tool for Windows and Mac OS based on the powerful 3D software CINEMA 4D. The tool is set to deliver accurate benchmarks by testing not only a computer's raw processing speed but also all other areas that affect system performance such as OpenGL, multithreading, multiprocessors and Intel's new HT Technology.

CINEBENCH includes render tasks that test the performance of up to 16 multiprocessors on the same computer as well as software-only shading tests and OpenGL shading tests on huge numbers of animated polygons that will push any computer to its limits.

CINEBENCH - Westmere

There is really not much to say here. The X5680 Xeons' 50% more cores give them right around a 50% advantage in CINEBENCH.

CINEBENCH r11.5 x64 Power - Usage and PPW

I've covered the whole power usage thing many times in previous articles, but if you're not familiar, let me recap. First up, I will present the actual wattage used over a predefined test period, as logged by the Exotech power meter. Remember, only the machine itself is plugged in to the meter.

The "test period" here, and in all subsequent graphs, is a period that starts five seconds before the machine leaves the idle state and starts the workload. The period ends five seconds after the slowest machine in the test completes the workload.

CINEBENCH Power Usage - Westmere

In this graph, I break down the power usage into Joules or, Watt-seconds. "Total Joules" represents the amount of energy used by the machine over the entire test period (as previously defined above). The "Workload Joules" represent the amount of power required to complete the actual benchmark, from the second the machine leaves the idle state until the second it completes the test.

CINEBENCH Performance-per-watt - Westmere

From here on out I will not be adding commentary to any of the power graphs unless something really jumps out as being odd. I take these readings and make these graphs to aid you in deciding what is going to work best for you based on your own usage model. Because of this, the same numbers will mean different things to different people.

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