AMD Sempron (from Latin semper "always, always") is a brand name of the manufacturer Advanced Micro Devices , which is used to denote various microprocessors and single-chip systems in the lowest price segment. The first microprocessor called Sempron came onto the market in 2004 as the successor to the AMD Duron processors.
AMD offers technically different processor types under the brand name Sempron:
- The versions for socket A are renamed Athlon XPs with Thoroughbred and Thorton core (256 kB L2 cache) and an FSB clocked at 166 MHz , which is why they are only MMX , 3DNow! and support SSE . The Barton core with 512 kB L2 cache was used for the Sempron 3000+. So these are processors of the K7 generation . In April 2005, AMD stopped manufacturing the 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 therefore belong to the K8 generation . They therefore also support SSE2 , the NX bit (also known as "No-Execution-Technology" / "Enhanced Virus Protection") and Cool'n'Quiet (only from 1,800 MHz). SSE3 is also supported from the Palermo. AMD64 was reserved for the Athlon 64 until mid-2005. At this time, AMD was under pressure from Intel's Celeron with EM64T to offer CPUs with 64-bit support in the lower price segment. For this reason, Sempron CPUs with activated AMD64 have also been sold since July 2005. See AMD Sempron (K8) .
- In July 2009 the K10-based Sempron 140 for the AM3 socket was presented. This was planned under the code name Sargas and is based on the current 45 nm SOI manufacturing process. The processor is actually sold as a single-core processor, but a second core can often be activated.
- In spring 2014, the AMD Sempron 2650 and the AMD Sempron 3850, two models from the AMD Sempron APU product line, were presented. These SoCs based on the Kabini design are the first Sempron models to contain an integrated GPU .
For its new processor family, AMD uses different benchmarks for the QuantiSpeed specifications (namely those of the Celeron) than for the Athlon XP or Athlon 64. This is why an AMD Athlon XP 2500+ , for example, has a higher clock rate than a Sempron 2500+.
In addition, the Quantispeed data between the Socket A-Semprons and the Socket 754-Semprons are not comparable, as the different architecture prevents this. Due to the K8 architecture, the Socket 754 Semprons are significantly faster.
- AMD Athlon II X2 240/245 and Sempron 140 officially , from July 22, 2009
- Single-core Sempron activated for dual-core , from August 11, 2009