The Sempron processor is the successor to the Duron processor from AMD and like this in the lower price segment located. The brand name Sempron is from the word " semper " (Latin for always, always ) derived.


AMD offers under the name Sempron two technically completely different processor types:

  • The versions for Socket A Athlon XPs are renamed with the Thoroughbred and Thorton core (256 KB L2 cache ) and a clocked to 166 MHz FSB, which therefore only MMX, 3DNow! and SSE support. For the Sempron 3000 Barton core was used with 512 KB L2 cache. So there are processors in the K7 generation. In April 2005, AMD introduced the production of a Sempron for Socket A. See AMD Sempron (K7 ).
  • The versions for Socket 754, Socket 939 and Socket AM2, however, are very closely related to the Athlon 64 and are therefore for the K8 generation. They support SSE2 therefore, the NX bit (also known as " No-Execution Technology" / " Enhanced Virus Protection " ) and Cool'n'Quiet ( only from 1800 MHz). SSE3 is from the Palermo also supported. AMD64 was until mid-2005, the Athlon 64 reserved. At this time, AMD saw Intel's Celeron with EM64T put under pressure in the lower price segment CPUs with 64 bit support to offer. Therefore, Sempron CPUs are also sold with AMD64 activated since July 2005. See AMD Sempron (K8 ).
  • In July 2009, the K10 -based Sempron 140 was presented for Socket AM3. This was planned under the code name Sargas and based on the current 45nm SOI manufacturing process. Actually, the processor is sold as a single-core processor, a second core often, however, can unlock.


AMD uses for its new family of processors other benchmarks for QuantiSpeed ​​information (namely, the Celerons ) than for the Athlon XP and Athlon 64 That is why, for example, an AMD Athlon XP 2500 clocked higher than a Sempron 2500 .

In addition, the Quantispeed information between the socket and the socket A- Semprons 754 Semprons are not comparable because the different architecture prevents this. Due to the K8 architecture, the base 754 Semprons are significantly faster.