But it comes at a premium.The TOXIC's attributes are more than just a flashy name, however. Pre-clocked to 675MHz core and 2,200MHz memory, a healthy increase over stock clocks of 625MHz/1,986MHz, the TOXIC benchmarks nearly 10 per cent higher than the el-cheapo '50s. That increase is facilitated by the bolting-on of an aftermarket ZALMAN heatsink that provides welcome relief from the whiny reference heatsink and its hunk of heatpipe-driven copper cooler keeps the underlying GPU some 16°C cooler.

HEXUS.net - Review :: Sapphire Radeon HD 4850 TOXIC: better than reference : Page - 12/12