Comparison of Radeon HD 7970M and GeForce GTX 775M Mac

Attribute	GeForce GTX 775M Mac ×	Radeon HD 7970M ×
GPU
Release year (year)	2013	2012
GPU brand	Nvidia	AMD
GPU name	GK104	Wimbledon
Market	Laptop	Laptop
Clock speed (MHz)	797	850
Is dual GPU	-	-
Model	GeForce GTX 775M Mac	Radeon HD 7970M
Memory
Memory (MB)	2,048	2,048
Memory bandwidth (GB/s)	160	153.6
Memory bus (bit)	256	256
Memory type	GDDR5	GDDR5
Memory clock speed (MHz)	1,250	1,200
Effective memory clock speed (MHz)	5,000	4,800
Noise and power
TDP (W)	100	100
Raw performance
Pixel rate (GPixel/s)	22.32	27.2
Render output processors	32	32
Texture mapping units	112	80
Shading units	1,344	1,280
Floating-point performance (GFLOPS)	2,142	2,176
Compute units	-	20
Texture rate (GTexel/s)	89.3	68
Benchmarks
Particle simulation (mInteraction/s)	280.4	-
T-Rex (Compubench 1.5) (frames/s)	3.11	-
Video composition (frames/s)	56.67	-
Battlefield 4	-	35.3
Face detection (mPixels/s)	30.36	51.64
T-Rex (GFXBench 3.0)	3357.2	3339.58
Manhattan (GFXBench 3.0)	3716.26	3713.82
Bitcoin mining (mHash/s)	66.6	257.3
Sky Diver Factor	-	271.71
Thief	-	33.5
Fire Strike Factor	-	46.48
Ocean surface simulation (frames/s)	1075.94	-