Comparison of GeForce GTX 780 and Radeon HD 7950 Mac

Attribute	GeForce GTX 780 ×	Radeon HD 7950 Mac ×
GPU
Release year (year)	2013	2013
GPU brand	Nvidia	AMD
GPU name	GK110	Tahiti PRO
Market	Desktop	Desktop
Clock speed (MHz)	863	800
Turbo clock speed (MHz)	902	-
Is dual GPU	-	-
Model	GeForce GTX 780	Radeon HD 7950 Mac
Memory
Memory (MB)	3,072	3,072
Memory bandwidth (GB/s)	288.4	240
Memory bus (bit)	384	384
Memory type	GDDR5	GDDR5
Memory clock speed (MHz)	1,502	1,250
Effective memory clock speed (MHz)	6,008	5,000
Noise and power
TDP (W)	250	200
Load power consumption (W)	250	-
Idle power consumption (W)	62	-
Load noise level (dB)	48.1	-
Idle noise level (dB)	38	-
Raw performance
Pixel rate (GPixel/s)	41.4	25.6
SMX units	13	-
Render output processors	48	32
Texture mapping units	192	112
Shading units	2,304	1,792
Floating-point performance (GFLOPS)	3,977	2,867
Compute units	-	28
Texture rate (GTexel/s)	165.7	89.6
Benchmarks
FarCry 3	46	-
Particle simulation (mInteraction/s)	966.29	460.4
T-Rex (Compubench 1.5) (frames/s)	5.49	1
Video composition (frames/s)	91.16	81.68
Battlefield 4	74	-
Face detection (mPixels/s)	57.69	67.8
Bitcoin mining (mHash/s)	255.31	370.18
Ocean surface simulation (frames/s)	1928.62	1230.77