Kal-EL
05-05-2009, 05:10 PM
GT300 to Boast Around 256 GB/s Memory Bandwidth (http://www.overclockaholics.com/93377/GT300_to_Boast_Around_256_GB_s_Memory_Bandwidth.ht ml)
Recently, early-information (http://www.techpowerup.com/?92099) on NVIDIA's next-generation GT300 graphics processor surfaced, that suggested it to pack 512 shader processors, and an enhanced processing model. A fresh report from Hardware-Infos sheds some light on its memory interface, revealing it to be stronger than that of any production GPU. According to a piece of information that has been doing ping-pong between Hardware-Infos and Bright Side of News (http://www.brightsideofnews.com/news/2009/5/5/gt300-to-feature-512-bit-interface---nvidia-set-to-continue-with-complicated-controllers.aspx), GT300 might feature a 512-bit wide GDDR5 memory interface.
The memory interface in conjunction with the use of the lowest latency GDDR5 memory available, at a theoretical 1000 MHz (2000 MHz DDR) would churn out 256 GB/s of bandwidth, the highest for a GPU so far. Although Hardware-Infos puts the lowest-latency figure at 0.5 ns, the math wouldn't work out. At 0.5 ns, memory with actual clock rate of 1000 MHz would churn out 512 GB/s, so a slight inaccuracy there. Qimonda's IDGV1G-05A1F1C-40X leads production today with its "40X" rating. With these chips across a 512-bit interface, the 256 GB/s bandwidth equation is satisfied. The clock speeds of the memory isn't known just as yet, the above is just an example that uses the commonly available high-performance GDDR5 memory chip. The new GPU, at least from these little information leaks, is shaping up to be another silicon-monstrosity by NVIDIA in the making.
Source: Hardware-Infos (http://www.hardware-infos.com/news.php?news=2930) Visit Techpowerup.com for this article and others.
Recently, early-information (http://www.techpowerup.com/?92099) on NVIDIA's next-generation GT300 graphics processor surfaced, that suggested it to pack 512 shader processors, and an enhanced processing model. A fresh report from Hardware-Infos sheds some light on its memory interface, revealing it to be stronger than that of any production GPU. According to a piece of information that has been doing ping-pong between Hardware-Infos and Bright Side of News (http://www.brightsideofnews.com/news/2009/5/5/gt300-to-feature-512-bit-interface---nvidia-set-to-continue-with-complicated-controllers.aspx), GT300 might feature a 512-bit wide GDDR5 memory interface.
The memory interface in conjunction with the use of the lowest latency GDDR5 memory available, at a theoretical 1000 MHz (2000 MHz DDR) would churn out 256 GB/s of bandwidth, the highest for a GPU so far. Although Hardware-Infos puts the lowest-latency figure at 0.5 ns, the math wouldn't work out. At 0.5 ns, memory with actual clock rate of 1000 MHz would churn out 512 GB/s, so a slight inaccuracy there. Qimonda's IDGV1G-05A1F1C-40X leads production today with its "40X" rating. With these chips across a 512-bit interface, the 256 GB/s bandwidth equation is satisfied. The clock speeds of the memory isn't known just as yet, the above is just an example that uses the commonly available high-performance GDDR5 memory chip. The new GPU, at least from these little information leaks, is shaping up to be another silicon-monstrosity by NVIDIA in the making.
Source: Hardware-Infos (http://www.hardware-infos.com/news.php?news=2930) Visit Techpowerup.com for this article and others.