Socket 754 was the successor to Socket A, and was to continue AMD’s success in the CPU market with the Athlon64 and Sempron lines. It was a cut-down consumer-oriented value socket, which offered less features as compared to Socket 939/940, and was eventually wound down with Socket 939 taking its position.
I built many many systems based on the Sempron CPUs, as they were often available as low as $28 a piece, and overclocked handsomely as long as one was to accept that most motherboards of the time had limited divider choices. Later Sempron models had 64-bit capability enabled.
Even to this day (2014), some of my Socket 754 systems are serving as recovery machines.
AMD Sempron 64 2600+ SDA2600AIO2BA 1.6Ghz
AMD Sempron 2600+ SDA2600AIO2BX 1.6Ghz
This particular CPU is assembled in China, unlike most AMD CPUs, and this particular model code doesn’t disclose whether the core is 64 bit capable (some are, some aren’t).
AMD Sempron 2800+ SDA2800AIO3BA 1.6Ghz
A higher performance rating but the same core clock rate? What gives? Well as it turns out, the 2600+ only had 128kB L2 cache, whereas the 2800+ has 256kB. Normally the 2800+ commands a small premium over the 2600+ making it a good buy.
AMD Sempron 64 3300+ SDA3300AIO2BO 2.0Ghz
The clock rate might seem low for such a highly rated performance rating, but it boils down to the choice of more productivity based benchmarks in determining the scores.
A Typical Thermal Solution
As most people bought boxed AMD CPUs, as only a limited number of OEMs shipped AMD CPUs, most users would have been supplied with the AMD heatsink. In general, most of them looked something like this, and they were identical for Socket 939.
A slight variant with a different clip design was also supplied.