Adrian Wong
Member
Hello everyone!
Adrian's Rojak Pot has just posted rev. 3.1 of the AGP Sidebanding vs. AGP Overclocking guide which examines AGP's sideband port and the overclocking of the AGP bus. This 14-page guide not only discusses the theoretical implications of enabling the sideband support or overclocking the AGP bus, it also compares the performance difference of enabling sideband support or overclocking with benchmarks! This means we have the results to back up our theories. Here, check out this snip :-
"Overclocking the AGP bus appears to be the most logical step in improving the performance of the AGP bus since it brings about a substantial increase in AGP bandwidth. For example, overclocking the AGP bus to 112MHz increases the AGP bus' maximum bandwidth to 900MB/s (using the AGP2X transfer mode), which is way over the usual AGP2X's maximum bandwidth of 534MB/s.
On the other hand, sidebanding improves AGP performance indirectly by removing the need for the main AD lines of the AGP bus to service AGP requests and commands. Instead, the AD lines are reserved for data transfers only. Both methods increase practical AGP bandwidth so which offers more? Let's find out."
Adrian Wong
Adrian's Rojak Pot
Adrian's Rojak Pot has just posted rev. 3.1 of the AGP Sidebanding vs. AGP Overclocking guide which examines AGP's sideband port and the overclocking of the AGP bus. This 14-page guide not only discusses the theoretical implications of enabling the sideband support or overclocking the AGP bus, it also compares the performance difference of enabling sideband support or overclocking with benchmarks! This means we have the results to back up our theories. Here, check out this snip :-
"Overclocking the AGP bus appears to be the most logical step in improving the performance of the AGP bus since it brings about a substantial increase in AGP bandwidth. For example, overclocking the AGP bus to 112MHz increases the AGP bus' maximum bandwidth to 900MB/s (using the AGP2X transfer mode), which is way over the usual AGP2X's maximum bandwidth of 534MB/s.
On the other hand, sidebanding improves AGP performance indirectly by removing the need for the main AD lines of the AGP bus to service AGP requests and commands. Instead, the AD lines are reserved for data transfers only. Both methods increase practical AGP bandwidth so which offers more? Let's find out."
Adrian Wong
Adrian's Rojak Pot
