The AMD Athlon 1400 (B) was a desktop processor with 1 core, launched in June 2001, at an MSRP of $253. It is part of the Athlon Model 4 lineup, using the Thunderbird B architecture with Socket A. Athlon 1400 (B) has 256 KB of L2 cache and operates at 1400 MHz. AMD is building the Athlon 1400 (B) on a 180 nm production process using 37 million transistors. The multiplier is locked on Athlon 1400 (B), which limits its overclocking capabilities.
With a TDP of 72 W, the Athlon 1400 (B) consumes typical power levels for a modern PC. AMD's processor supports DDR1 memory with a single-channel interface. The highest officially supported memory speed is 266 MT/s, but with overclocking (and the right memory modules) you can go even higher. Actual memory technology support depends on the chosen motherboard, because the memory controller is located on the motherboard (not in the processor). Although the processor doesn't come with integrated graphics, certain motherboards with compatible chipsets can provide this capability.
A lot of games will not work on this processor, because they require the SSE instruction set, which is not supported.