Comparison of Radeon HD 8770M and GeForce 825M

Attribute	Radeon HD 8770M ×	GeForce 825M ×
GPU
Release year (year)	2013	2014
GPU brand	AMD	Nvidia
GPU name	Mars	GK208
Market	Laptop	Laptop
Clock speed (MHz)	775	850
Turbo clock speed (MHz)	825	-
Is dual GPU	-	-
Model	Radeon HD 8770M	GeForce 825M
Memory
Memory (MB)	2,048	1,024
Memory bandwidth (GB/s)	72	14.4
Memory bus (bit)	128	64
Memory type	GDDR5	DDR3
Memory clock speed (MHz)	1,125	900
Effective memory clock speed (MHz)	4,500	1,800
Noise and power
TDP (W)	-	33
Raw performance
Pixel rate (GPixel/s)	6.6	6.8
Render output processors	8	16
Texture mapping units	24	32
Shading units	384	384
Floating-point performance (GFLOPS)	634	653
Compute units	6	-
Texture rate (GTexel/s)	19.8	27.2
Benchmarks
PassMark	-	743
3DMark 11 Graphics	12,680	9,290
3DMark Vantage Graphics	7,078	5,243
3DMark06	1,934	1756.5