Guru3D: "Force3D delivers an impressive product with the Radeon HD 4870 512 MB DHT. It's a very lovely product in terms of performance and yes, we are able to overclock the card to pretty impressive numbers, adding more value for money to the product.
It unfortunately isn't all glory though. Though we can not deny that the cooler does a pretty good job keeping the GPU cool, even when overclocked there remains a concern. It's the actual noise level coming from that cooler. We measured it at 45 DBA and that's 75-90 cm (slightly less than 3 foot) away from the chassis. The DHT cooler was continuously there noise wise and for the audiophiles definitely something of a bother. Please be aware of this as it is not a cooler to go with if you are into silent operation of your PC."