AMD A6-6400K vs AMD Phenom II X3 720

Physical Specifications

Socket AMD Socket FM2 AMD Socket AM3
Process size 32 nm 45 nm
Transistors 1,178 million 758 million
Die size 246 mm² 258 mm²
Package µPGA µPGA
tCaseMax 70°C


Frequency 3.9 GHz 2.8 GHz
Turbo clock up to 4.1 GHz
Base clock 100 MHz 200 MHz
Multiplier 39.0x 14.0x
Multiplier unlocked Yes No
Voltage 1.475 V 1.425 V
TDP 65 W 95 W

Architecture Details

Vertical Segment Desktop Desktop
Production status unknown End-of-life
Release date Jun 1st, 2013 Jan 1st, 2010
Codename Richland Heka
Generation A6 Phenom II X3
Memory support DDR3 Dual-channel DDR3 Dual-channel
ECC memory No No
PCI Express Gen 2


Total Cores 2 3
Total Threads 2 3
SMP # CPUs 1 1
Integrated graphics Radeon HD 8470D


Cache L1 128K (per core) 128K (per core)
Cache L2 1MB (per core) 512K (per core)
Cache L3 6MB (shared)


Notes This processor comes with an unlocked base clock multiplier, allowing users to set the multiplier value higher than shipped value, to facilitate better overclocking.

Features & Technologies

3DNow! Yes Yes
AMD-V Yes Yes
AMD64 Yes Yes
CnQ Yes
MMX Yes Yes
NX bit Yes Yes
SSE Yes Yes
SSE2 Yes Yes
SSE3 Yes Yes
SSE4A Yes Yes


Sysrqmts browser extension icon
Stop overpaying for PC games!
See cheapest prices in Steam store with our browser extension.