AMD Athlon X4 870K 4.1 GHz Socket FM2+ 4MB Cache Retail Boxed Processor AMD Athlon X4 870K specifications General information Type CPU / Microprocessor Market segment Desktop Family AMD Athlon X4 Model number 870K CPU part number: AD870KXBJCSBX is a boxed microprocessor with low-noise fan & heatsink Frequency 3900 MHz Turbo frequency 4100 MHz Package 906-pin lidded micro-PGA package Socket Socket FM2+ Size 1.57" x 1.57" / 4cm x 4cm Architecture / Microarchitecture Microarchitecture Steamroller Processor core Godavari Core stepping A1 Manufacturing process 0.028 micron Data width 64 bit The number of CPU cores 4 The number of threads 4 Floating Point Unit Integrated Level 1 cache size 2 x 96 KB shared instruction caches 4 x 16 KB data caches Level 2 cache size 2 x 2 MB shared caches Level 3 cache size None Multiprocessing Uniprocessor Features MMX instructions Extensions to MMX SSE / Streaming SIMD Extensions SSE2 / Streaming SIMD Extensions 2 SSE3 / Streaming SIMD Extensions 3 SSSE3 / Supplemental Streaming SIMD Extensions 3 SSE4 / SSE4.1 + SSE4.2 / Streaming SIMD Extensions 4 SSE4a AES / Advanced Encryption Standard instructions AVX / Advanced Vector Extensions BMI1 / Bit Manipulation instructions 1 F16C / 16-bit Floating-Point conversion instructions FMA3 / 3-operand Fused Multiply-Add instructions FMA4 / 4-operand Fused Multiply-Add instructions TBM / Trailing Bit Manipulation instructions XOP / e Xtended Operations instructions AMD64 / AMD 64-bit technology AMD-V / AMD Virtualization technology EVP / Enhanced Virus Protection Turbo Core 3.0 technology Low power features Power Now! Integrated peripherals / components Integrated graphics None Memory controller The number of controllers: 1 Memory channels: 2 Supported memory: DDR3-2133 Maximum memory bandwidth (GB/s): 34.1