Comparison of GeForce GTX 680 and Radeon HD 7970

Attribute	Radeon HD 7970 ×	GeForce GTX 680 ×
GPU
Release year (year)	2011	2012
GPU brand	AMD	Nvidia
GPU name	Tahiti XT	GK104
Market	Desktop	Desktop
Clock speed (MHz)	925	1,006
Turbo clock speed (MHz)	-	1,058
Is dual GPU	-	-
Model	Radeon HD 7970	GeForce GTX 680
Memory
Memory (MB)	3,072	2,048
Memory bandwidth (GB/s)	264	192.3
Memory bus (bit)	384	256
Memory type	GDDR5	GDDR5
Memory clock speed (MHz)	1,375	1,502
Effective memory clock speed (MHz)	5,500	6,008
Noise and power
TDP (W)	250	195
Load power consumption (W)	391	356
Idle power consumption (W)	113	112
Load noise level (dB)	55.2	51.9
Idle noise level (dB)	40.2	38.5
Raw performance
Pixel rate (GPixel/s)	29.6	32.2
SMX units	-	8
Render output processors	32	32
Texture mapping units	128	128
Shading units	2,048	1,536
Floating-point performance (GFLOPS)	3,789	3,090
Compute units	32	-
Texture rate (GTexel/s)	118.4	128.8
Benchmarks
Bioshock Infinite	78	-
Hitman: Absolution	73	-
Cloud Gate Factor	21.46	-
Battlefield 4	-	64.3
Face detection (mPixels/s)	49.05	47.72
T-Rex (GFXBench 3.0)	-	3360.28
Manhattan (GFXBench 3.0)	-	3719.86
Bitcoin mining (mHash/s)	447.28	123.57
Sky Diver Factor	380.04	381.6
Thief	-	54.05
Fire Strike Factor	62.9	60.74
Ocean surface simulation (frames/s)	261.64	-