|ASUS P6X58D-E Motherboard Performance|
|Reviews - Featured Reviews: Motherboards|
|Written by Olin Coles|
|Thursday, 17 June 2010|
Page 15 of 17
Power Consumption Results
Life is not as affordable as it used to be, and items such as fuel and electrical energy top the list of resources that have exploded in price over the past few years. Add to this the limit of non-renewable resources compared to demand and you can see that the prices are only going to get worse. Planet Earth is needs our help, and needs it badly. With forests becoming barren of vegetation and snow capped poles quickly turning brown, the technology industry has a new attitude towards suddenly becoming "green". Motherboard manufacturers, in particular, have been touting their new energy saving features. How effective these power management system are, is exactly what we intend to measure in our power consumption tests.
Up to this point, Benchmark Reviews has compared each X58-Express motherboard against one-another in benchmark performance tests. For this section, only one topic is of primary concern: electrical power consumption. So then, since the Gigabyte GA-EX58-UD4P has relegated as the reference for our benchmarks, it should be interested to see how old power-management technology compares to the new features.
To measure system power consumption, Benchmark Reviews uses the Kill-A-Watt EZ (model P4460) power meter made by P3 International. A baseline test is taken as the system is allowed to boot into Windows and rest idle at the login screen for three minutes before power consumption is recorded. Once the baseline reading has been taken, Lavalys EVEREST Ultimate Edition is loaded and the System Stability Test is run with 100% stress on the CPU and FPU for five minutes and the results recorded. Next, the CPU, FPU, Cache, and System Memory stress options are turned on for five minutes. After the CPU/Cache/RAM test results are recorded, our final loaded power consumption reading is taken with the video card running at 100% using the FurMark stress test.
TEST SUMMARY: Power consumption is at it's least-controlled state before the Operating System and drivers can manage the hardware and deliver managed power efficiency. For this reason, power usage within the BIOS setup page is much higher than at idle. The Gigabyte GA-EX58-UD4P, which lacks additional Ethernet, USB-3.0, or SATA 6Gb/s controllers, offered the best result at 182 watts of consumption. Our featured test product, the ASUS P6X58D-E required 184 watts, which was the best of all Marvell SATA-6G motherboards. The Gigabyte GA-X58A-UD3R and ASUS P6X58D-Premium motherboards each used 186W, while the Gigabyte GA-X58A-UD7 consumed 188W.
At idle, the ASUS P6X58D-E again offered the lowest power consumption of all the SuperSpeed USB-3.0 and Marvell SATA-6G equipped motherboards. When the power is turned up for 100% processor utilization, all five motherboards increased power consumption by about 84 watts. When the processor, system memory, and cache subsystem were all taxed, the ASUS P6X58D-E and Gigabyte GA-EX58-UD4P each consumed 92W over idle, while the ASUS P6X58D-Premium required 94W more power. The Gigabyte GA-X58A-UD3R and GA-X58A-UD3R each used 96W more power than at idle. Keeping in mind that all of these X58-Express motherboards share nearly identical power management features and delivered similar power consumption. The level of power savings can be further improved using Intel SpeedStep and Core-i7 C-state features in conjunction with motherboard tools.