Comparison of GeForce GTX 780M and GeForce GTX 870M

Attribute	GeForce GTX 870M ×	GeForce GTX 780M ×
GPU
Release year (year)	2014	2013
GPU brand	Nvidia	Nvidia
GPU name	GK104	GK104
Market	Laptop	Laptop
Clock speed (MHz)	941	771
Turbo clock speed (MHz)	967	797
Is dual GPU	-	-
Model	GeForce GTX 870M	GeForce GTX 780M
Memory
Memory (MB)	3,072	4,096
Memory bandwidth (GB/s)	120	160
Memory bus (bit)	192	256
Memory type	GDDR5	GDDR5
Memory clock speed (MHz)	1,250	1,250
Effective memory clock speed (MHz)	5,000	5,000
Noise and power
TDP (W)	100	100
Raw performance
Pixel rate (GPixel/s)	26.35	25.5
Render output processors	24	32
Texture mapping units	112	128
Shading units	1,344	1,536
Floating-point performance (GFLOPS)	2,529	2,448
Texture rate (GTexel/s)	105.4	102
Benchmarks
Battlefield 4	36.6	40.25
Face detection (mPixels/s)	34.84	35.82
T-Rex (GFXBench 3.0)	3360.2	3060.34
Manhattan (GFXBench 3.0)	3717.8	3715.82
^1↑Bitcoin mining (mHash/s)	81.75	81.78
Sky Diver Factor	295.59	348
Thief	31.9	40.2
Fire Strike Factor	35.66	53.72