8 - CPU Performance Drystone - Queen - ZLib
DryStone CPU test
We make use of a multi-threaded Dhrystone test, which is basically a suite of arithmetic and string manipulating programs. Since the whole program should be really small, it fits into the processor cache. It can be used to measure two aspects, both the processor's speed as well as the optimizing capabilities of the compiler. The resulting number is the number of executions of the program suite per second.
Since we use a Q6600 processor we'll compare with AMD's Phenom 9850 processor, priced roughly the same. We'll also show your Q6600 performance on the nForce 680i mainboard, and we'll include the results taken at the 750i platform both in default configuration, and our massive 3.6 GHz overclock.
First impression, not bad. Look at the processor go once overclocked, dang.
Queen CPU test
This simple integer benchmark focuses on the branch prediction capabilities and the misprediction penalties of the CPU. It finds the solutions for the classic "Queens problem" on a 10 by 10 sized chessboard. At the same clock speed theoretically the processor with the shorter pipeline and smaller misprediction penalties will attain higher benchmark scores. For example -- with HyperThreading disabled -- the Intel Northwood core processors get higher scores than the Intel Prescott core based ones due to the 20-step vs 31-step long pipeline. However, with enabled HyperThreading the picture is controversial, because due to architectural bottlenecks the Northwood core runs out of internal resources and slows down. Similarly, at the same clock speed AMD K8 class processors will be faster than AMD K7 ones due to the improved branch prediction capabilities of the K8 architecture.
CPU Queen test uses only the basic x86 instructions, it consumes less than 1 MB system memory and it is HyperThreading, multi-processor (SMP) and multi-core aware and thus is a multithreading CPU Benchmark with MMX, SSE2 and SSSE3 optimizations.
ZLib CPU test
This integer benchmark measures combined CPU and memory subsystem performance through the public ZLib compression library Version 1.2.2
CPU ZLib test uses only the basic x86 instructions, and it is HyperThreading, multi-processor (SMP) and multi-core (CMP) aware. Again a very good test to measure multi-core performance.
As you'll notice throughout the review, baseline performance s roughly the same.
