Memory manufacturer Qimonda claims to have started producing the worlds first 512MB GDDR5 chips. Like past GDDR revisions, GDDR5 increases the maximum bandwidth between a graphics processor and the graphics memory. GDDR5 boasts a whopping 20GB/s bandwidth, up from the GDDR4 bandwidth of 16GB/s. Qimonda claims that GDDR5 improves power consumption by downclocking unused VRAM. Qimonda will release their GDDR5 RAM "sometime in 2008". You can read the full Qimonda GDDR5 briefing here.
techPowerUp! News :: Qimonda Samples GDDR5