Asus P5Q Deluxe - P45 Chipset with DDR2
How We Configured Our Test Systems: When configuring our test systems for this article, we first entered their respective system BIOSes and set each board to its "Optimized" or "High performance Defaults". We then saved the settings, re-entered the BIOS and set memory timings for either DDR2-1066 with 5,5,5,15 timings or DDR3-1333 with 7,7,7,20 timings. The hard drives were then formatted, and Windows Vista Ultimate was installed. When the Windows installation was complete, we updated the OS, and installed the drivers necessary for our components. Auto-Updating and Windows Defender were then disabled and we installed all of our benchmarking software, defragged the hard drives, and ran all of the tests.
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System 1: Asus P5Q Deulxe 2x1GB Corsair PC2-8500 GeForce 8800 GTX WD150 "Raptor" HD Windows Vista Ultimate |
System 2: Gigabyte GA-MA790FX-DQ6 GeForce 8800 GTX WD150 "Raptor" HD Windows Vista Ultimate |
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We began our testing with SiSoftware's SANDRA XII, the System ANalyzer, Diagnostic and Reporting Assistant. We ran three of the built-in subsystem tests that partially comprise the SANDRA XII suite with an Intel Core 2 Extreme QX9650 processor installed in the Asus P5Q Deluxe motherboard (CPU Arithmetic, Memory Bandwidth, and Memory Latency). For comparison, we also ran the same three tests on a Gigabyte X48-based motherboard equipped with DDR2 memory. All of the scores reported below were taken with the processors running a clock speed of 3GHz, with 2GB of DDR2-1066 RAM installed.
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The SiSoft SANDRA benchmarks tell an interesting story. According the three modules we ran, the P45 and X48 chipset perform similar in the CPU Arithmetic benchmark, which is to be expected. The memory bandwidth and latency benchmarks, however, show marked differences between the two chipsets. Although they were both equipped with the same CPU and memory, the X48 / DDR2 combination put up slightly better memory bandwidth and latency scores. Whereas the P45-based Asus P5Q Deluxe offered up approximately 6.98GB/s of memory bandwidth with a random access latency of 77ns, the X48-based Gigabyte board put up 7.01GB/s of peak bandwidth with random access latency of 73ns. How these differences play out in real world performance scenarios, however, remains to be seen.
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