Gigabyte P55-UD6 LGA1156 Motherboard Review‏

I/O Benchmarks

A first here at Hardware Canucks, we have finally included some basic I/O benchmarks. We love to hear your thoughts and ideas about what to implement and whether we should expand to include LAN and audio tests, so let us know on the forums.

HD Tach 3.0.4 - SATA

For this benchmark, HDTach was used. It shows the potential read speed which you are likely to experience with an Intel X-25M 80GB G1 solid state drive (SSD) on this motherboard. The long test was run to give a slightly more accurate picture. The test was run three times with the results averaged out.

We don’t put much stock in Burst speed readings and this goes double for SSDs; the more important number is the Average Speed number. This number will tell you what to expect from a given drive in normal, day to day operations. The higher the average the faster your entire system will seem.

We also test CPU utilization in order to make sure that there isn't a problem needlessly wasting CPU cycles. Lastly, we have also included the random access time, just as another barometer of overall storage sub-system performance. In both cases, the lower the better.


Give or take, all five motherboards have effectively identical SATA read speeds


The P55-UD6 did slightly distinguish itself from the others by having the lowest CPU utilization at 2%, and tying the Maximus III Formula for the lowest access times at 0.1ms, courtesy of the Intel X25-M G1 SSD.

HD Tach 3.0.4 - USB

For this benchmark, HDTach was used. It shows the potential read speed which you are likely to experience from this motherboard's USB 2.0 ports. In this test, we connected an external 2.5" 5400RPM hard drive to a USB port, ran the test three times and averaged the results. The long test was run to give a slightly more accurate picture.

We don’t put much stock in Burst speed readings; the more important number is the Average Speed number. This number will tell you what to expect from a given drive in normal, day to day operations. The higher the average the faster your entire system will seem.

We also test CPU utilization in order to make sure that there isn't a problem needlessly wasting CPU cycles. Lastly, we have also included the random access time, just as another barometer of overall storage sub-system performance. In both cases, the lower the better.


USB read speeds are very much identical across the board, with any differences attributable to normal benchmark variance.


Once again, the results are pretty much identical, which is great frankly. We love to see this level of consistency across five different products.

HD Tach 3.0.4 - eSATA

For this benchmark, HDTach was used. It shows the potential read speed which you are likely to experience from this motherboard's eSATA port with an Intel X-25M G1 80GB solid state drive. with these hard drives. The long test was run to give a slightly more accurate picture. The test was run three times with the results averaged out.

We don’t put much stock in Burst speed readings and this goes double for SSDs; the more important number is the Average Speed number. This number will tell you what to expect from a given drive in normal, day to day operations. The higher the average the faster your entire system will seem.

We also test CPU utilization in order to make sure that there isn't a problem needlessly wasting CPU cycles. Lastly, we have also included the random access time, just as another barometer of overall storage sub-system performance. In both cases, the lower the better.


The P55-UD6, Maximus III Formula, P7P55D Deluxe, and P55-GD80 all utilize the same JMicron JMB362/363 controller for eSATA support, and as such they achieve nearly performance levels. All three were a good deal faster than the Intel DP55KG, which uses by a Marvell 88E6145 controller.


Once again, the Gigabyte, ASUS, and MSI models are equal, but the Intel board has slightly lower CPU utilization.