Comparison of Radeon HD 7670M and GeForce GT 650M Mac

Attribute	GeForce GT 650M Mac ×	Radeon HD 7670M ×
GPU
Release year (year)	2012	2012
Reference card	-	AMD Radeon HD 7670M 600 MHz 1 GB
GPU brand	Nvidia	AMD
GPU name	GK107	Thames
Market	Laptop	Laptop
Clock speed (MHz)	900	600
Is dual GPU	-	-
Model	GeForce GT 650M Mac	Radeon HD 7670M
Memory
Memory (MB)	512	1,024
Memory bandwidth (GB/s)	80.3	57.6
Memory bus (bit)	128	128
Memory type	GDDR5	GDDR5
Memory clock speed (MHz)	1,254	900
Effective memory clock speed (MHz)	5,016	3,600
Noise and power
TDP (W)	45	20
Raw performance
Pixel rate (GPixel/s)	7.2	9.6
Render output processors	16	16
Texture mapping units	32	24
Shading units	384	480
Floating-point performance (GFLOPS)	691	576
Compute units	-	6
Texture rate (GTexel/s)	28.8	14.4
Benchmarks
Battlefield 3	-	7.1
Particle simulation (mInteraction/s)	87.07	-
T-Rex (Compubench 1.5) (frames/s)	0.81	-
Video composition (frames/s)	14.41	-
Crysis 2	-	10.4
Face detection (mPixels/s)	8.63	2.47
T-Rex (GFXBench 3.0)	2726.54	1803.68
Manhattan (GFXBench 3.0)	1706.01	1737.63
Bitcoin mining (mHash/s)	13.28	-
Sky Diver Factor	-	71.57
Fire Strike Factor	-	8.03
Ocean surface simulation (frames/s)	342.74	210.9