Athlon is the name of a family of CPUs designed by AMD, targeted mostly at the desktop market. It has been largely unused as just "Athlon" since 2001 when AMD started naming its processors Athlon XP, but in 2008 began referring to single core 64-bit processors from the AMD Athlon X2 and AMD Phenom product lines. Later the name began being used for some APUs. Features overview "Pure" CPUs CPU features table APUs APU features table Athlon (Model 1,K7 "Argon", 250 nm) L2 cache always runs with 50% of CPU speed All models support: MMX, Enhanced 3DNow! Athlon (Model 2, K75 "Pluto/Orion", 180 nm) L2 cache runs with 50% (up to 700 MHz), 40% (up to 850 MHz) or 33% (up to 1000 MHz) of CPU speed. 900 - 1000 MHz have Orion designation. All models support: MMX, Enhanced 3DNow! Athlon (Model 4, "Thunderbird", 180 nm) L2 cache always runs with full CPU speed All models support: MMX, Enhanced 3DNow! Athlon XP Athlon 64 Athlon X2 Athlon II Athlon (Piledriver) "Trinity" (2012) Platform "Virgo" Fabrication 32 nm on GlobalFoundries SOI process Socket FM2 CPU: Piledriver L1 Cache: 16 KB Data per core and 64 KB Instructions per module Die Size: , 1.303 Billion transistors Support for up to four DIMMs of up to DDR3-1866 memory 5 GT/s UMI Integrated PCIe 2.0 controller, and Turbo Core technology for faster CPU/GPU operation when the thermal specification permits MMX, SSE, SSE2, SSE3, SSSE3, SSE4a, SSE4.1, SSE4.2, AMD64, AMD-V, AES, CLMUL, AVX, XOP, FMA3, FMA4, F16C, ABM, BMI1, TBM "Richland" (2013) Fabrication 32 nm on GlobalFoundries SOI process Socket FM2 Two or four CPU cores based on the Piledriver microarchitecture Die Size: , 1.303 Billion transistors L1 Cache: 16 KB Data per core and 64 KB Instructions per module MMX, SSE, SSE2, SSE3, SSSE3, SSE4a, SSE4.1, SSE4.2, AMD64, AMD-V, AES, AVX, AVX1.1, XOP, FMA3, FMA4, F16C, ABM, BMI1, TBM, Turbo Core 3.0, NX bit, PowerNow! Athlon (Jaguar) "Kabini" (2013, SoC) Fabrication 28 nm by GlobalFoundries Socket AM1, aka Socket FS1b (AM1 platform) 2 to 4 CPU Cores (Jaguar (microarchitecture)) L1 Cache: 32 KB Data per core and 32 KB Instructions per core MMX, SSE, SSE2, SSE3, SSSE3, SSE4a, SSE4.1, SSE4.2, AMD64, AVX, F16C, CLMUL, AES, MOVBE (Move Big-Endian instruction), XSAVE/XSAVEOPT, ABM, BMI1, AMD-V support SoC with integrated memory, PCIe, 2× USB 3.0, 6× USB 2.0, Gigabit Ethernet, and 2× SATA III (6 Gb/s) controllers