ASUS HD 7970 DirectCU II 28nm Graphics Card Review

Features - Software and Utilities

GPU Tweak

ASUS HD 7970 DCUII Review - GPU Tweak

GPU Tweak is ASUS' implementation for GPU overclocking and monitoring. ASUS' version is one of the only overclocking utilities which does not run on a RivaTuner code base.  ASUS has packaged it with a red and black skin, utilizing GPU-z for GPU information, and a large number of monitoring statistics.  ASUS offers an "easy mode," which has a reduced overclocking range, which should yield a "safe" range for beginners or casual overclockers to give their cards a boost without worrying about frying their card. 


They've also given you options to link or un-link voltage with GPU clock settings.  The linked setting uses a "conservative" voltage jump to ensure stability, which is generally higher than necessary.  This setting is nice in that it gives you a good starting point for a given clock, then you can work your voltage back from there to improve efficiency or temperatures.  The "Advanced Mode" also gives the option to independently control voltage and GPU clock for more seasoned or comfortable overclockers.



ASUS also offers an "Overclocking Range Adjustment" if you're looking to push the voltage and/or clocks higher than the safe mode allows.  ASUS has been a leader in fan controls on their motherboards, and they also offer user-defined fan settings based upon core temperature, giving you added flexibility to control temperatures (and the impact on overclocking), as well as the noise profile.


The monitoring portion of the utility proves itself very useful, as it offers a quick look at the entire state of your card as you use it.  Temperature curves along with fan speed can be used to fine-tune your thermal and acoustic performance.  Ensuring your card is being fully-utilized and that the clocks are hitting their set targets is also nice to have.  The monitoring software may also be used to log all of the statistics so you can track GPU states through GPU stress testing which allows you to identify the bottlenecks in your cards performance, be it thermal or power related.


Other features include Live Update which will check for updated versions of your vBIOS.  The functionality is there but not yet available in public builds, but future builds will also include video recording options similar to other overclocking utilities, and you can utilize a number of hot key shortcuts to make adjustments on-the-fly.

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# Nikolaj 2013-03-08 06:17
Hi guys, nice review but what about VRM temps ?

It's a huge issue on these models. To be straight ti the point:

ASUS DCT2T, 60 degrees on the core and 100 degress on the VRM section. That's a huge amount and this is why they limited the Over-Voltage capabilities. If being overclocked at 1GHz with 1.112mV it generates 74/112 degrees celsius for core/VRM

note: che first setting it's blank due a graph error but as you can see in the other images it's "ASUS HD7970-DC2T-3GD 5 AUTO/40%, 1974 RPM"

The 7970, as it's shown in your review, it's a very solid performer. Good day
# Ivan 2013-03-09 07:08
please stop with this rumor, those temperature are due to an error as stated many times bu asus, if you use the correct GPU tweak you will see that they never goes over 78 degree in my case...
please avoid missinformation
# Nikolaj 2013-03-09 12:18
Quoting Ivan:
please stop with this rumor, those temperature are due to an error as stated many times bu asus, if you use the correct GPU tweak you will see that they never goes over 78 degree in my case...
please avoid missinformation

Hi Ivan

Show me something, a link to an Asus Statement or something like that. I've never heard of such clarification, would you be so kind to show it ?

If you're right, this should mean that eveery VRM sensor mounted on the Gigabyte and Asus, or even 7970 reference designs, should have some issues. As you can see from the graphs, ad stock speeds it's all right for gigabyte 797OC-3GD but if overclocked it behaves similar to the Asus one.

Have you made personal tests that proove that the sensors are broken ?

What I've posted it's what I've seen also on other designs, not only Asus and if you check the ROG forums it's full of reports, like this one (7950 DCII model, faulty design):

It's not a ''rumour'' if it happens to an entire comunity ;)

Another link, HWINFO program tells the same story (it could be obviously the same sensor, but it's not a software related problem):

In this lik there's a person which states what I've seen on my test lab, Gigabyte 797OC-3GB capable of heat the VRM section at 65 degrees with the stock settings.

I suggest you to read carefully hte review, the Arctic Cooling accelero Hybrid it was installed in the gigabyte 7970 797OC-3GD not the Asus DC2T.

I suppose that you're referring to the Core temps, since that GPU Tweak only reports it, and it's perfecly in-line with the temperatures reported in the review.

Before stating that what I've done is misinformation, please let us know about what you're talking about.

Many thanks in advance
# laur 2013-03-09 05:47
Nice part about the power phase current capacity, i hope you write abut it on every card reviewed on the site.- that's good info.