Samsung just announced that it has begun mass manufacturing of the industry's first 256GB Universal Flash Storage chips for high-end mobile devices. The new memory is nearly twice as fast as typical SATA-based SSDs found in PCs. Using two lanes of data transfer, the new chip can move data at up to a blistering 850MB per second.

Sequential writing speeds clock in at a rate of up to 260MB a second, or about three times faster than high-performance external SD cards. What this translates to is buttery-smooth frame rates when the chip is tasked with the playback of Ultra HD video files, even while simultaneously multitasking in a split screen.

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