Hello Everyone,



With the recent run of newer and more affordable graphics cards from ATI,
it's almost easy to forget that there's already a sub-$200 frame-rate
cruncher called the Radeon HD 4850. Based on the same RV770 chip as the
more powerful, yet more expensive HD 4870, the HD 4850 ships with the same
800 stream processors, 40 texture units, and 16 ROPs that have made these
cards such hot items. The main area where they differ, other than clock
speeds, is in regard to memory. While the HD 4870 ships with high-end GDDR5
memory chips, the HD 4850 finds itself loaded with 512 MB of more mainstream
GDDR3.



A major caveat with the Radeon HD 4850 that has arisen, however, is the
excessive heat that gets produced by the RV770 GPU. It seemed the single
slot reference cooling solution had a tough time handling the heat output of
the RV770. With heat being a concern, and manufacturers having more time to
tinker with their cards, we weren't surprised to find out that two of ATI's
major partners, HIS and Sapphire, had two new cards waiting in the wings,
each with their own ramped up clock speeds and with some superior cooling
thrown in as well. Come on by the site and check out the Sapphire Toxic
Radeon HD 4850 512M and HIS Radeon HD 4850 IceQ4 TurboX...



HIS and Sapphire Radeon HD 4850 Face Off

http://hothardware.com/Articles/HIS-and-Sapphire-Radeon-HD-4850-Face-Off/



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