Question

Memory capacity and clock speed are two important characteristics of GPU. Justify this statement and explain about other GPU performance parameters.

Answer 1

Memory capacity and clock speed are two important characteristics of GPU:

• The GPU is a parallel processing unit of CPU that helps to perform the graphics related processing and thus CPU can handle the other computation thus the overall performance of the system will be boosted.
• Mainly the memory capacity and clock speed determines the performance of a GPU, the clock speed includes both the processor clock speed and memory clock speed.
• More the memory capacity means more processes can be kept at the main memory at the same time increase the performance of graphic processes also with the higher clock frequency more number of operations per time.
• Either one of this can’t make a GPU performance better, low memory capacity or lower clock cycle make other thing underutilized.
• Thus with both the memory and clock cycle the performance of the graphic operations can be increased, more processes on the memory and more processing of this processes per unit time.

Other GPU performance parameters:

• Size of the memory bus: The memory bus size determines the data transfer speed with in and with the other parts.
• Number of cores: The number cores determines the parallel processing capability of GPU, more number of cores, more the parallel processing capacity.
• RAMDAC speed: This is used to measure the GPU RAM synchronous and its processing.