What Can It Do? How to use Sapphire's TRIXX Tweak Utility
Once installed, you'll open TRIXX and be greeted with the great-looking application above. This is the 'Info' screen and displays everything you need to know about your video card. You can see everything from the card itself, the ROPs, Shaders, Driver Version, BIOS Version and current clock speeds. It's a great run down of what you have.
Next up we'll take a look at the best part of TRIXX, the Overclocking section.
In here, we can adjust a few settings - GPU Clock, Memory Clock, Board Power Li and VDDC. GPU Clock and Memory Clock adjustments are obvious - they'll overclock their respective parts. Sapphire have done well with the user interface of TRIXX, as there's a large orange button you can grab and slide across, and they've added in some - and + for small adjustments. I found this particularly useful when wanting to test my GPU at 1GHz GPU Clock, and then tap down 5MHz at a time.
After you've adjusted the speed of your GPU and Memory you might want to pump up the max TDP to the GPU which is the last option, Board Power Li. Setting this to +20 can give you some great overclocking results, but pumps more power to your GPU. You won't want to just crank this all the way up, as you can damage your hardware - so you've been warned.
This setting corresponds with AMD PowerTune technology, which manages the GPU's core clock speed based on the TDP of the product - cranking this up, cranks the total TDP of the card by a maximum of 20% of the base TDP.
The last setting is VDDC, which gives you some very good voltage control.
Once you've set your GPU to your desired settings, you have "Apply" to click down the bottom. If you choose to reset your speeds, there's a "Reset" button right next to it. On the left of these two buttons you have a Profiles section.
The Profiles option allows you to save up to four different overclocking profiles, which is great. This is useful as not all applications or games will work at all overclocked speeds. I found myself going between profiles when benchmarking to test out the GPU itself, and then diving into Far Cry 3 I changed profiles so that my GPU Clock was lower so the game wouldn't crash - more on that later.
Next up we have Fan Control, which is quite self explanatory.
In this section, there's pretty much one thing to adjust - fan control. Sapphire's TRIXX Tweak Utility allows three options: Automatic, Fixed and Custom. Automatic will adjust the fan on your GPU by itself, which is what most people will do - but when you want to get down to the nitty gritty of overclocking, the Fixed and Custom options come into play.
Fixed allows you to select a certain percentage to have your GPU set at - for benching this would obviously be 100%. Unless you're pushing your GPU to its limits, there's no need with these new 28nm chips to have your fan cranked at 100% all the time.
Custom is where you'll have all of the options at your fingertips. You can set a precise percentage for your fan speed when your GPU reaches a certain temperature. So you could have the fan speed set to something like 30% until your GPU temperature reaches 50C. Your GPU would only begin to get hot when it's under stress, such as rendering a game - then the fan on the GPU would spin up on how you've got your custom setting.
You could have it get to 65C and spin the fan up to 75%. Of course, if it was to get real hot - say 100C - then you would have the fan crank up to 100% to compensate.
All of these options are great and are provided in a very simple manner. One thing I'd like to see in a future version of TRIXX is to have all of the overclocking options in one shot - instead of having to scroll down to find VDDC. I overlooked that option for the first 30-60 minutes of using it, because I didn't see the tiny slider to the right of the overclocking options.
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