To measure temperatures we used Everest Ultimate and to load the GPU to 100% we used Furmark. Room temperature was maintained at 23c for the duration of our tests. We used MSI Afterburner to overclock the card and tested for stability using Furmark.
We were able to achieve a 15% overclock on the GT 240 using the standard cooler which is quite impressive for a low-end card. With the GFXChilla installed we were able to push this a further 20MHz which translates into an 18% overclock. This isn’t a huge amount considering the extra cost of the cooler but as you’ll see below, the temperatures achieved are much more impressive. We’ll see how these overclocks translate into real-world performance in the following sections.
The stock cooler managed to keep the GT 240 at a reasonable 64 degrees under load with temperatures increasing only three degrees when overclocked. Using the GFXChilla, however, we were able to reduce the load temperature by a whopping 23 degrees at stock clocks and 24 degrees when overclocked. This is a great result and a temperature of 43 degrees when the card is overclocked and loaded with FurMark is nothing short of astonishing. This really proves the worth of using an aftermarket cooler with your card.