Page 1:Four Z68 Express-Based Motherboards For Enthusiasts
Page 2:ASRock Z68 Extreme7 Gen3
Page 3:Z68 Extreme7 Firmware
Page 4:Asus P8Z68 Deluxe
Page 5:P8Z68 Deluxe Firmware
Page 6:Gigabyte GA-Z68XP-UD5
Page 7:Z68XP-UD5 Firmware
Page 8:MSI Z68A-GD80 (B3)
Page 9:Z68A-GD80 Firmware
Page 10:Test Settings And Benchmarks
Page 11:Benchmark Results: Crysis And F1 2010
Page 12:Benchmark Results: Just Cause 2 And Metro 2033
Page 13:Benchmark Results: Audio And Video Encoding
Page 14:Benchmark Results: Productivity
Page 15:Power, Heat, And Efficiency
Page 17:A Word On Warranties
Page 18:Whose Enthusiast-Class Z68 Board Is Best?
Power, Heat, And Efficiency
Motherboards with the fewest on-board add-in controllers should obviously have the lowest power consumption, creating high expectations for low power use by MSI and Gigabyte. But looking beyond the obvious, differences in PWM design can also influence this test.
Gigabyte gives us the lowest idle power consumption, while MSI has the lowest full-load power use. This appears to mesh with MSI’s claims of superior PWM efficiency.
On the other hand, Asus’ power consumption is reflective of the company's claim that it's running all four cores at the processor's most aggressive Turbo Boost multiplier. As mentioned, you can counteract this by manually redefining the ratios for each core based on Intel's specification. If you don't, we can assure you that pushing higher performance costs additional power.
Gigabyte has the lowest PWM temperature, but its heat sink is also much larger than MSI’s. We only see that it runs cooler. We don't know exactly how much of that temperature difference is due to less power use.
Efficiency is a comparison of work to energy. Or, in this case, performance to energy. So, we need a compilation chart of performance results to calculate it. Asus’ performance-oriented settings put it 5.3% above-average.
That 5.3% performance gain doesn't end up serving as an advantage if you're worried about efficiency, given power consumption that's 10.6% higher than average. If you want to drop the P8Z68 Deluxe down to the levels achieved by some of the competing platforms, you have to do extra work to counteract the company's auto-rule (we'd perhaps suggest a UEFI toggle to turn this on or off, rather than manually remapping Turbo Boost ratios).
We used -1 in all of this chart’s calculations to form a 0% baseline, so that nobody could misconstrue it to represent better than 100% efficiency.
- Four Z68 Express-Based Motherboards For Enthusiasts
- ASRock Z68 Extreme7 Gen3
- Z68 Extreme7 Firmware
- Asus P8Z68 Deluxe
- P8Z68 Deluxe Firmware
- Gigabyte GA-Z68XP-UD5
- Z68XP-UD5 Firmware
- MSI Z68A-GD80 (B3)
- Z68A-GD80 Firmware
- Test Settings And Benchmarks
- Benchmark Results: Crysis And F1 2010
- Benchmark Results: Just Cause 2 And Metro 2033
- Benchmark Results: Audio And Video Encoding
- Benchmark Results: Productivity
- Power, Heat, And Efficiency
- A Word On Warranties
- Whose Enthusiast-Class Z68 Board Is Best?