PureOverclock posted a review of the Sapphire Radeon 5850 Toxic 2GB Edition graphics card

This limited edition Sapphire 5850 Toxic graphics card sports a huge 2GB of memory, up from the usual 1GB. This should help when running antialiasing at higher resolutions, so we'll do exactly that on several very demanding games. But the Toxic also comes with the same impressive Vapor-X technology known for running cool and quiet, we well as a good factory overclock to boot. Gotta love this combination of features.

Sapphire Radeon 5850 Toxic 2GB Review