While the Radeon HD 4850 TurboX features HIS' dual slot, IceQ cooling solution which will be familiar to anyone who has seen an HIS board in recent years, possibly of more interest here is the level of clock speed increases offered by this TurboX part. Starting out with the board's RV770 core clock speed, this gets a boost of 60MHz to give us a new speed of 685MHz. Memory fares even better, with the 993MHz clock speed of a reference board eschewed in favour of 512MB of GDDR3 clocked at 1100MHz, to make for an impressive increase in memory bandwidth.