|AMD Phenom-II X6-1100T CPU HDE00ZFBRBOX|
|Reviews - Featured Reviews: Processors|
|Written by David Ramsey|
|Tuesday, 07 December 2010|
Page 10 of 14
PassMark PerformanceTest 7.0
The PassMark PerformanceTest allows you to objectively benchmark a PC using a variety of different speed tests and compare the results to other computers. PassMark comprises a complete suite of tests for your computer, including CPU tests, 2D and 3D graphics tests, disk tests, memory tests, and even tests to determine the speed of your system's optical drive. PassMark tests support Hyper-Threading and systems with multiple CPUs, and allow you to save benchmark results to disk (or to export them to HTML, text, GIF, and BMP formats).
Knowledgeable users can use the Advanced Testing section to alter the parameters for the disk, network, graphics, multitasking, and memory tests, and created individual, customized testing suites. But for this review I used only the built-in CPU tests, which aren't configurable. PassMark computes a "CPU Marks" score based on the scores of the individual tests:
The CPU Mark results scale as I'd expect. The Intel Core i5-750 edges ahead of the AMD Phenom-II 965 Black Edition, but only barely; the Core i7-930 is pretty much even with the AMD 1075T, and after that the AMD processors pull away from the Intel CPUs until the 980x, as usual, comes to the fore. Now let's look at the individual tests.
Integer and floating point operations are the basic things modern CPUs do. Integer operations are everything except floating point; technically, even instructions like comparisons, branches, and bit rotates are integer instructions. Floating point instructions deal specifically with floating point math operations. For example, an integer division of 3 into 7 will return "2" as the result, whereas a floating point division of 3 into 7 will return 2.333... as the result. While most program code is comprised of integer instructions, floating point instructions are important in modelling and rendering applications.
Intel CPUs utterly dominate in the integer tests, with even the i5-750 beating the overclocked 1100T by more than 50%. On the floating point side of things, though, the order reverses, with AMD processors winning except for the 965 Black Edition against the i7-980x. The excellent floating point results of the AMD CPUs help explain how the AMD processors keep up in the rendering benchmarks.
The Compress and Sort CPU sub-tests are both integer-based, and the Intel processors continue to dominate, although the results are closer in the string sort.
AMD CPUs have an edge in the Encrypt portion of the test, with all AMD processors beating most Intel processors; the exceptions are the 980x being the overall performance champ and the 965 Black Edition being a few percentage points behind the i7-930. Intel dominates in the Physics test, though, with the 930 beating every AMD processor except the overclocked AMD 1100T.
The Primes test would favor the AMD camp were it not for the oddly high score of the i5-750. In the SSE test (which performs matrix rotations and multiplications, important operations in 3D transformations among other things), the pendulum swings back towards the AMD camp, with every AMD processor beating every Intel processor except the Core i7-980x, which is only narrowly edged out by the overclocked Phenom-II X6-1100T.
But enough synthetic benchmarks. Let's get to something a little more real-world...