Comparison of GeForce 830M and GeForce GTX 850M

Attribute	GeForce GTX 850M ×	GeForce 830M ×
GPU
Release year (year)	2014	2014
GPU brand	Nvidia	Nvidia
GPU name	GM107	GM108
Market	Laptop	Laptop
Clock speed (MHz)	902	1,082
Turbo clock speed (MHz)	936	1,150
Is dual GPU	-	-
Model	GeForce GTX 850M	GeForce 830M
Memory
Memory (MB)	2,048	2,048
Memory bandwidth (GB/s)	32	14.4
Memory bus (bit)	128	64
Memory type	DDR3	DDR3
Memory clock speed (MHz)	1,001	900
Effective memory clock speed (MHz)	2,002	1,800
Noise and power
TDP (W)	45	33
Raw performance
Pixel rate (GPixel/s)	14.43	8.66
Render output processors	16	8
Texture mapping units	40	16
Shading units	640	256
Floating-point performance (GFLOPS)	1,155	554
Texture rate (GTexel/s)	36.1	17.31
Benchmarks
Bioshock Infinite	-	12.3
Battlefield 4	20.4	9.5
Face detection (mPixels/s)	37.72	16.95
T-Rex (GFXBench 3.0)	2606.42	3361.16
Manhattan (GFXBench 3.0)	1764.49	1851.27
Bitcoin mining (mHash/s)	150.96	67.44
Sky Diver Factor	225.07	127.48
Thief	18.4	-
Fire Strike Factor	26.99	12.69