As we have already covered briefly on the last page, one of the key features of the HIS X700 Pro is its ability to overclock close to the clock speeds of the X700XT which was supposed to be positioned higher in performance (and price) compared to the X700 Pro.
Included in the package is a piece of software for Windows called HIS iTURBO which allows you to adjust core and memory clock speeds on-the-fly within Windows as well as the ability to change the amount of voltage supplied to the fan. The GUI behind the software is great and is really simple to use - just click the iTURBO button located to the bottom left of the window and clock speeds are automatically increased to 460MHz on the core (35MHz above default and just 15MHz behind the X700XT) and 960MHz DDR on the memory (100MHz DDR above default and 90MHz DDR behind the XT) - the fan speed is automatically increased to 100% as well. The maximum you can adjust the core clock to is 475MHz and the memory you can take to 1GHz but at these clock speeds HIS will not provide warranty (not that they would really know, as far as we can see from the surface).
After testing the card at the maximum speed of 475MHz core (same as the XT) and memory at 1GHz with no stability problems at all, we began to wonder just how far this card would go. So we fired up a very handy program called ATI Tool (at the time of writing you'll need to use the latest BETA version which is 0.0.23 Beta 10 that supports the new line of cards from ATI, you can download it here) and found out just how far we could go.
After setting the fan speed to 100% we let ATI Tool determine the maximum clock speeds with its genius tool that works out the maximum stable clock speed for you - it just takes a while so be prepared to wait. We were able to get the core clock on our review sample to 510MHz (35MHz faster than the default XT speed) and the memory clock to 525MHz (or 1050MHz) which is the same speed as the XT. We were able to run benchmarks quite a few MHz quicker on the memory but we did start to notice a few glitches above 1.05GHz DDR.
Just remember the card we received from HIS in Hong Kong came with an X700XT core and we cannot guarantee your card will come with one. Nevertheless, HIS promise a stable overclocked "iTURBO" speed which is only a tad slower than the X700XT and that's just great we reckon.
The only thing we would like to see HIS do in the future versions of the program is to allow users to manually type in the clock speeds to levels seen in programs such as ATI Tool but also offer a warning to users past tested overclocked speeds that these settings may harm the product and reduce product life time. Apart from that HIS are congratulated for taking these steps for the enthusiasts and we suggest companies such as ABIT, ASUS and MSI watch out as HIS looks to be marching in strongly on your parade.
Find the lowest price on PCI Express Graphics Cards!