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Athlon II X2 255 Reaches 4.80 GHz
Renowned overclocker Chew* set a speed record for AMD's new value dual-core processor, the Athlon II X2 255. Based on the Regor core, the X2 255 is a monolithic dual-core chip, with just two physical cores on die, and additional L2 cache, with no L3 cache. This cuts the TDP of the chip to 65W. On the bench built by Chew*, the X2 255 reached 4800.1 MHz, with a BClk of 320.01 MHz, multiplied by 15.0. The chip's natural multiplier value is 15.5x, its stock speed is 3.10 GHz. A VCore of 1.696 Volts was set.
The processor was cooled using a Mach 1 phase cooler. The bench consisted of an Athlon II X2 255, Gigabyte GA-MA785GPMT-UD2H motherboard - another mainstream component which proved its mettle, OCZ DDR3 1600 MHz Black Edition certified memory, PC Power & Cooling 1200W PSU, and ATI Radeon HD 4890 graphics. The CPU-Z validation for this feat can be found here. In the same occasion, Chew* could overclock the chip to 4050 MHz using a reference AMD CPU cooler (which comes bundled with higher-end AMD chips). More pictures at the source.
The processor was cooled using a Mach 1 phase cooler. The bench consisted of an Athlon II X2 255, Gigabyte GA-MA785GPMT-UD2H motherboard - another mainstream component which proved its mettle, OCZ DDR3 1600 MHz Black Edition certified memory, PC Power & Cooling 1200W PSU, and ATI Radeon HD 4890 graphics. The CPU-Z validation for this feat can be found here. In the same occasion, Chew* could overclock the chip to 4050 MHz using a reference AMD CPU cooler (which comes bundled with higher-end AMD chips). More pictures at the source.