MediaGX

The Cyrix CPUs MediaGX was the first x86 CPU, which originated as a SoC design. The basis for the Cyrix 5x86 processor was taken and additionally integrated functions of the Northbridge and other system components such as a memory controller and a graphics chip in the processor.

National Semiconductor, the parent company of Cyrix, strongly focused on these SoC chips and so the division was not sold together even after the re- purchase of Cyrix to VIA Technologies, but the development was continued under the new name Geode. The MediaGX is thus the basis for the current Geode SoCs.

Model data

MediaGX GX

  • L1 cache: 16 KiB (unified )
  • Socket pins 352, based on the base 7
  • Front Side Bus: 33 MHz
  • Operation voltage ( Vcore ): 3.3, 3.6 V
  • Power consumption ( TDP):
  • Release Date: 1997
  • Manufacturing Technology: 0.4 micron at IBM
  • The size: 160 mm ² at 2.4 million transistors
  • Clock rates: 120, 133 and 150 MHz
  • Case: BGA -352 (plastic, metal)

MediaGX GXI

  • L1 cache: 16 KiB (unified )
  • Socket pins 352, based on the base 7
  • Front Side Bus: 60 and 66 MHz
  • Operation voltage ( Vcore ): 2.9 V
  • Power consumption ( TDP):
  • Release Date: 1997
  • Manufacturing Technology: 0.35 micron IBM
  • The size: 160 mm ² at 2.4 million transistors
  • Clock rates: 120, 133, 150, 166 and 180 MHz
  • Case: BGA -352 (plastic, metal)

MediaGX GXM

  • L1 cache: 16 KiB (unified )
  • MMX
  • Socket pins 352, based on the base 7
  • Front Side Bus: 60 and 66 MHz
  • Operation voltage ( Vcore ): 2.2, 2.5, 2.9 V
  • Power consumption ( TDP ): max. 11.27 W (at 300 MHz)
  • Release Date: 1998
  • Manufacturing Technology: 0.35 micron IBM
  • The size: 160 mm ² at 2.4 million transistors
  • Clock rates: 200, 233, 266 and 300 MHz
  • Case: BGA -352 (plastic, metal), PGA -296 (ceramic)

MXi

  • Code Name: Cayenne ( for the CPU )
  • L1 cache: 64 KiB (unified )
  • MMX, 3DNow
  • Based on the Socket 370
  • Front Side Bus: 100 MHz
  • Operation voltage ( Vcore ):
  • Power consumption ( TDP):
  • Release Date: never released
  • Manufacturing Technology: 0.25 micron
  • Clock rates: 300 MHz
Instruction set Socket 7 Cyrix Cx5x86 Geode (processor) Byte List of microprocessors
211288
de