Comparison of GeForce GTX 660 Ti and Radeon HD 7970M

Attribute	GeForce GTX 660 Ti ×	Radeon HD 7970M ×
GPU
Release year (year)	2012	2012
Reference card	Nvidia GeForce GTX 660 Ti 915 MHz 2 GB	-
GPU brand	Nvidia	AMD
GPU name	GK104	Wimbledon
Market	Desktop	Laptop
Clock speed (MHz)	915	850
Turbo clock speed (MHz)	980	-
Is dual GPU	-	-
Model	GeForce GTX 660 Ti	Radeon HD 7970M
Memory
Memory (MB)	2,048	2,048
Memory bandwidth (GB/s)	144.2	153.6
Memory bus (bit)	192	256
Memory type	GDDR5	GDDR5
Memory clock speed (MHz)	1,502	1,200
Effective memory clock speed (MHz)	6,008	4,800
Noise and power
TDP (W)	150	100
Load power consumption (W)	318	-
Idle power consumption (W)	111	-
Load noise level (dB)	47.9	-
Idle noise level (dB)	41.8	-
Raw performance
Pixel rate (GPixel/s)	25.62	27.2
SMX units	7	-
Render output processors	24	32
Texture mapping units	112	80
Shading units	1,344	1,280
Floating-point performance (GFLOPS)	2,460	2,176
Compute units	-	20
Texture rate (GTexel/s)	102.5	68
Benchmarks
Battlefield 4	42	35.3
Face detection (mPixels/s)	35.9	51.64
T-Rex (GFXBench 3.0)	3356.32	3339.58
Manhattan (GFXBench 3.0)	3711.8	3713.82
Bitcoin mining (mHash/s)	102.46	257.3
Sky Diver Factor	334.44	271.71
Thief	40.9	33.5
Fire Strike Factor	49.97	46.48