Test protocolFor this test, we used the protocol we introduced in our report on graphics cards and thermal characteristics, which allows us to make a detailed analysis of the various choices NVIDIA’s partners have made here.
We measured the temperature of the GPU and various components under actual usage conditions, in an Antec Sonata 3 case and we also took an infrared shot, opening the cas for as short a time as possible. We also measured noise levels under actual usage conditions, namely with the cards in a closed casing. For this we placed a sonometre 60 cm from the casing.
When several variants (in terms of overclocking) of the same model were available, we tested just one of them, as the overall analysis would be the same. There’s no need for a detailed analysis of the performance of the different solutions because all the cards would give identical performances at identical clocks. This is therefore dealt with briefly in the report.
We concentrated on the most common models and, for now, we’re able to present results on 13 of them, in addition to the stock card. We will of course add models in the future if need be.
Crysis Warhead was used to measure performances as it has the advantage of being well balanced between the AMD and NVIDIA solutions and should therefore make it easier to compare the performance of these cards with the different Radeon HD 6850s that we’ll be testing soon.