Intel Z77 Motherboard Review with Ivy Bridge - ASRock, ASUS, Gigabyte, and MSI
by Ian Cutress on May 7, 2012 7:40 PM EST- Posted in
- Motherboards
- MSI
- Gigabyte
- ASRock
- Asus
- Ivy Bridge
- Z77
Gigabyte GA-Z77X-UD3H - In The Box
Over the past several motherboard generations, I have not been that impressed with Gigabyte's offering in terms of extras - this is because in order to hit a price point, sometimes the extras in the box are not the focus of the product. With the Z77X-UD3H, we are hoping for at least some good stuff here.
Driver CD
User Manual
IO Shield
Four SATA Cables
One long SLI bridge
Voltage Readings
Using OCCT we monitor the voltage change of the motherboard under load. This represents the direct correlation between the Load Line Calibration and how the processor/motherboard deals with voltage requests while under load. This is not to be confused with the quality of power delivery, but more an indication of how aggressive the default LLC settings are on a motherboard.
The response of the Gigabyte board under load is fantastic. No ripple at all and a lower average voltage than the ASUS P8P77-V Pro.
Overclocking
Note: Ivy Bridge does not overclock like Sandy Bridge. For a detailed report on the effect of voltage on Ivy Bridge (and thus temperatures and power draw), please read Undervolting and Overclocking on Ivy Bridge.
The Gigabyte GA-Z77X-UD3H has a variety of overclocking tools at the disposal of the user. Automatic overclocks are through EasyTune6, where we experienced a rather good result with our chip with Gigabyte's auto tuning software, and manual overclocks are either performed through the BIOS (with a series of menu jumps which should have been more carefully laid out), or using a new Gigabyte tool called TweakLauncher. I have not previewed TweakLauncher here, as it is primarily for sub-zero overclockers wanting real-time access to changes in performance while under extreme temperatures. It forgoes the usual GUI interface and sliders with something more amenable to the competitive overclocker - it is not suitable for the majority of users.
Auto Overclock: Using the Auto Tuning option in EasyTune6, the software pulled up a large screen and offered a confirmation of a stress-tested overclock. When clicked yes, the system would stability test a range of BCLK and Multipliers until the board resets or the system finds it unstable. When this had finished, the board offered me a 46x104.5 overclock (4810 MHz). I discovered that turbo modes still applied, so this speed was the single thread speed, and the CPU would reduce the multiplier by two for multithreaded loads, giving 4589 MHz). This gave 1.236 volts at load, which could be a little high, but due to the lower speed under multithreaded load, the CPU only reached 84ºC under PovRay and was completely stable. I enjoyed this result a lot from an automatic overclock!
Manual Overclock: Due to the way Ivy Bridge behaves with increased voltage, for a manual overclock, I am testing the peak overclock at a variety of voltages as well as the temperatures at that voltage. On the Gigabyte board, the CPU load line calibration was set to Extreme and Intel Speed Step was disabled. One interesting thing to note was that Gigabyte set this board to 100.9 MHz default on the BCLK, rather than 100.0 MHz. When the multiplier is pushed above 44x, this is reduced to 100.0 MHz.
At 1.100 volts, the highest multiplier that was stable was 45x, giving 4.5 GHz. This gave 70ºC at load with PovRay, and showed a load voltage of 1.116 volts.
At 1.150 volts, the highest multiplier that was stable was 46x, giving 4.6 GHz. This gave 75ºC at load with PovRay, and showed a load voltage of 1.164 volts.
At 1.200 volts, the highest multiplier that was stable was 47x, giving 4.7 GHz. This gave 82ºC with PovRay, 86ºC with OCCT, and a load voltage of 1.212 volts.
At 1.250 volts, the board successfully booted at 4.8 GHz, with 1.272 volts under load and 89ºC with PovRay - but this was not stable due to the memory errors in PovRay, suggesting more voltage is required. Given the current load temperature, I was unwilling to push the voltage further.
In terms of memory, when attempting to overclock a G.Skill 2x4 DDR3-2666 kit, which performed 2950 MHz on the ASUS P8Z77-V Pro, it would not boot at the DDR3-2800 strap despite all the correct timings being entered.
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bji - Tuesday, May 8, 2012 - link
Don't intelligently designed modern operating systems use as much unused RAM as is available as filesystem cache? I know Linux does, I would expect Windows 7 does as well. In which case, I have to wonder what the value of a RAM disk except to make your persisted data completely volatile and lost on a power outage.Turning the unusable RAM beyond 4 GB into a RAM disk when a 32 bit operating system is in use is the only marginally useful feature that you mentioned, but you have to be stuck with a 32 bit OS for that to be of any value.
Using a RAM disk comes at the cost of vastly increased complexity for managing persisted files (having to copy things from RAM disk to persistent storage before shutting down) and vastly increased risk of loss of data on unexpected power outage. All of the RAM disk useability features in the world won't help with those issues.
Zoomer - Tuesday, May 15, 2012 - link
Temp, cache or scratch files would be good uses of a ramdisk. Other than that, there's really no point.kstan12 - Tuesday, May 8, 2012 - link
i would *love* to read a review of ivy bridge that doesn't include an engineering sample. my i7-3770k seems to want a lot more voltage @ 4.7 than what i see in reviews online. i know one might clock higher than another but it seems these ES samples use less voltage. am i wrong here?and where did you get the updated bios for the asus p8z77-v pro? i can only download 0906. :-)
IanCutress - Tuesday, May 8, 2012 - link
Hi Kstan12,My ES is stepping 9, which is identical to retail. It's all about the luck of the silicon at the end of the day.
Ian
kstan12 - Wednesday, May 9, 2012 - link
oh ok, so you would just compare the stepping, thanks! maybe i'm not so good at overclocking too.love reading your articles...you explain things quite well, good work!
vegemeister - Thursday, May 10, 2012 - link
Unless you bought it retail, they could have easily given you a cherry-picked chip. There is a lot of variation in semiconductor manufacturing, even on the same stepping.Zoomer - Tuesday, May 15, 2012 - link
If that's the results from a cherry picked chip, there would be a very compelling reason to choose SB over IVB for overclockers.JSt0rm01 - Tuesday, May 8, 2012 - link
But I feel like the release schedule has slowed way way way down. We need amd to step back up to the plate. We need more competition. I have been waiting on the new xeon parts for what seems like forever.-------------
Also, after being a member of the anandtech forums for 10 years I was permanently banned by the moderators there because they wanted to censor a website (ffdt.info) that had conversation that was critical of their moderation. I find that the free flow of all information on the internet is critical. For a tech website such as this to limit the flow of information is offensive the core of these beliefs and its all because certain people in positions of illusory power deem that information detrimental to their positions.
bji - Tuesday, May 8, 2012 - link
To your first point, x86 development HAS slowed way down and the trend will continue. With consumer computer usage turning more to cell phones and tablets, the market for faster x86 parts can no longer sustain the billions of dollars of R&D necessary to advance x86 state of the art. Intel is probably in the process of reducing their x86 R&D budgets in anticipation of this.This will not change, even if AMD makes a comeback. I have predicted in the past that the fastest x86 part ever to be produced will be no faster than 50% faster than the current fastest Ivy Bridge. I stand by that prediction.
Sadly, the heady days of rapid advances in x86 tech are over, as anyone who witnessed the early/mid 2000's and can compare them to now will testify to.
JSt0rm01 - Tuesday, May 8, 2012 - link
Its unfortunate for power users. I will probably end up with a 2010 6-core mac pro to replace my aging 2006 macpro (please no anti-apple I use certain software and my industry is almost 100% apple I also have been building my own pcs since 1998) but what comes after that? I've already held this macpro for longer then I've had any computer. I guess what comes next? Will arm processors in 15 years be monsters of computational power?-------------
Also, after being a member of the anandtech forums for 10 years I was permanently banned by the moderators there because they wanted to censor a website (ffdt.info) that had conversation that was critical of their moderation. I find that the free flow of all information on the internet is critical. For a tech website such as this to limit the flow of information is offensive the core of these beliefs and its all because certain people in positions of illusory power deem that information detrimental to their positions.