summary	FX 8140	8120
Clock speed	3.2 GHz	3.1 GHz
Turbo clock speed	3.6 GHz	4 GHz
Cores	Octa core	Octa core
Socket type
AM3+
Is unlocked	Yes	Yes
features
Has a NX bit	Yes	Yes
Has virtualization support	Yes	Yes
Instruction set extensions
SSE4a
SSE2
F16C
MMX
XOP
AVX
SSE3
SSE
ABM
CLMUL
AMD64
SSE4.1
FMA4
SSE4.2
CVT16
AMD-V
Supplemental SSE3
AES
Supports dynamic frequency scaling	Yes	Yes
power consumption
TDP	95W	125W
Annual home energy cost	22.89 $/year	46.87 $/year
Annual commercial energy cost	83.22 $/year	109.5 $/year
Performance per watt	1.83 pt/W	7.23 pt/W
Typical power consumption	77.19W	117.5W
memory controller
Memory controller	Built-in	Built-in
Memory type
DDR3-1866
Channels	Dual Channel	Dual Channel

details	FX 8140	8120
Architecture	x86-64	x86-64
Threads	8	8
L2 cache	8 MB	8 MB
L2 cache per core	1 MB/core	1 MB/core
L3 cache	8 MB	8 MB
L3 cache per core	1 MB/core	1 MB/core
Manufacture process	32 nm	32 nm
Transistor count	1,200,000,000	1,200,000,000
Max CPUs	1	1
Die size	319 mm²	319 mm²
Clock multiplier	20	20
Voltage range	0.78 - 1.43V	1.11 - 1.38V
overclocking
Overclocked clock speed	3.2 GHz	4.47 GHz
Overclocked clock speed (Water)	3.2 GHz	4.73 GHz
Overclocked clock speed (Air)	3.2 GHz	4.47 GHz
integrated graphics
GPU	None	None
Label	N/A	N/A
Latest DirectX	N/A	N/A
Number of displays supported	N/A	N/A
GPU clock speed	N/A	N/A
Turbo clock speed	N/A	N/A
3DMark06	N/A	N/A
bus
Architecture	HyperTransport 3.1	HyperTransport 3.1
Clock speed	2,600 MHz	2,600 MHz

AMD FX 8140 vs 8120

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