GDDR5 to be ready next year?
The first GDDR5 memory chips will become
available before 2008, according to a DRAMeXchange report quoted by
HKEPC. GDDR5 is currently at the design stage, but samples will
reportedly be ready for mid-2007, and final chips will become available
in late 2007. Meanwhile, GDDR4 samples from Samsung and Hynix have been
sent to both ATI and NVIDIA, and ATI is prepping its first GDDR4-powered
graphics card. The Radeon X1950 XTX will reportedly feature
Samsung-built 64MB, 1.8V GDDR4 chips rated for 1100MHz (an "effective"
2.2GHz, or 8.8GB/s of bandwidth per memory chip.) Samsung has already pushed GDDR4 samples to an
impressive 1.6GHz (3.2GHz effective), which yields 12.8GB/s per chip,
but HKEPC doesn't say how high GDDR5 will clock.