If you're on the prowl for some Crossfire muscle, the HD 4850 X2 is definitely a card worth taking into consideration. Although it's been around for months, XSPC has decided to make the water-cooler for Sapphire dual GPU PCB 4870 X2 card.
So, soon you'll be able to get third-party watercooler for Sapphire HD 4850 X2, which will be silent and provide you with enough performance for most needs. Although you don't hear about it much, the affordable HD 4850 X2 was received quite well in the gaming community, so such a move doesn't come as a surprise.
We've learned that this time around Sapphire didn't go for Asetek's watercooling kit, which is used on its watercooled HD 4870 X2 Atomic.
The HD 4850 X2 consists of two RV770 chips in Crossfire on a single PCB, and it normally ships with a dual slot cooler. Each of the GPUs packs 800 stream processors and addresses 1GB of GDDR3 memory on a 256-bit bus. Thanks to the low price of GDDR3 memory, the HD 4850 X2 is a relatively affordable card, significantly cheaper than the HD 4870 X2 with GDDR5 memory.
The only shortcoming of this card is that it can be a bit too loud under load, however, a bios update can solve this problem and make it a bit more quiet.