Mobile Sempron

The Sempron is a name used for AMD's low-end CPUs, replacing the Duron processor. The name was introduced in 2004, and processors with this name continued to be available for the FM2/FM2+ socket in 2015.

Note 1: Socket A processors use a double data rate (DDR) front side bus, meaning that the actual data transfer rate of the bus is twice its physical clock rate. Socket A Semprons use a 333 MT/s FSB, which is a DDR 166 MHz FSB. The multipliers in the tables above apply to the 166 MHz physical clock rate, not the true data transfer rate.

Note 2: For traditional processors, including the Socket A Semprons, the multiplier is the value multiplied to the speed of the FSB to get the clock speed of the processor. Socket 754, 939, and S1 processors have a memory controller integrated on the CPU die, replacing the traditional concept of FSB. The memory controller runs at the same frequency as the CPU itself, and is able to run the system memory at 200 MHz (using PC-3200 memory sticks for 754 and 939, PC2-5300 for S1) or at lower speeds (when using slower PC-1600, PC-2100 or PC-2700 RAM). Between CPU and chipset, HyperTransport is used, running at 800 MHz for Semprons. The multipliers here apply to the 200 MHz system clock frequency, not the HyperTransport speed.

Note 3: The CPU model number can be read directly from the OPN number, the fourth to the seventh letters represent the model number of the CPU. The "200U" model number is only used for embedded system products.

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