The heat itself isn't a problem. They are designed to run at that temp all day long 24/7 for however long the lifespan of the card is. Heat only turns us off because we don't want our other parts to get warm. But this card sits in an enclosed fan case and i don't know which way the exhaust is but if you have a case fan there shouldn't be an issue. My card i have now was known to hit those temps and have the noisiest fan ever. Putting an aftermarket fan on was no problem for me and a no brainier. Plus the heat issue they can work out while ati scrambles to release their new card.