Comparison of Radeon HD 7950 and GeForce GTX 870M

Attribute	Radeon HD 7950 ×	GeForce GTX 870M ×
GPU
Release year (year)	2012	2014
GPU brand	AMD	Nvidia
GPU name	Tahiti PRO	GK104
Market	Desktop	Laptop
Clock speed (MHz)	800	941
Turbo clock speed (MHz)	-	967
Is dual GPU	-	-
Model	Radeon HD 7950	GeForce GTX 870M
Memory
Memory (MB)	3,072	3,072
Memory bandwidth (GB/s)	240	120
Memory bus (bit)	384	192
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)	200	100
Load power consumption (W)	321	-
Idle power consumption (W)	112	-
Load noise level (dB)	53.1	-
Idle noise level (dB)	40.7	-
Raw performance
Pixel rate (GPixel/s)	25.6	26.35
Render output processors	32	24
Texture mapping units	112	112
Shading units	1,792	1,344
Floating-point performance (GFLOPS)	2,867	2,529
Compute units	28	-
Texture rate (GTexel/s)	89.6	105.4
Benchmarks
Crysis 3	45	-
Battlefield 4	33.5	36.6
Face detection (mPixels/s)	77.81	34.84
T-Rex (GFXBench 3.0)	3359.66	3360.2
Manhattan (GFXBench 3.0)	3712.14	3717.8
Bitcoin mining (mHash/s)	382.11	81.75
Sky Diver Factor	355.06	295.59
Thief	-	31.9
Fire Strike Factor	57.91	35.66