Comparison of GeForce GTX 680 and Radeon R9 270

Attribute	GeForce GTX 680 ×	Radeon R9 270 ×
GPU
Release year (year)	2012	2013
GPU brand	Nvidia	AMD
GPU name	GK104	Curacao
Market	Desktop	Desktop
Clock speed (MHz)	1,006	900
Turbo clock speed (MHz)	1,058	925
Is dual GPU	-	-
Model	GeForce GTX 680	Radeon R9 270
Memory
Memory (MB)	2,048	2,048
Memory bandwidth (GB/s)	192.3	179.2
Memory bus (bit)	256	256
Memory type	GDDR5	GDDR5
Memory clock speed (MHz)	1,502	1,400
Effective memory clock speed (MHz)	6,008	5,600
Noise and power
TDP (W)	195	150
Load power consumption (W)	356	-
Idle power consumption (W)	112	-
Load noise level (dB)	51.9	-
Idle noise level (dB)	38.5	-
Raw performance
Pixel rate (GPixel/s)	32.2	29.6
SMX units	8	-
Render output processors	32	32
Texture mapping units	128	80
Shading units	1,536	1,280
Floating-point performance (GFLOPS)	3,090	2,368
Compute units	-	20
Texture rate (GTexel/s)	128.8	74
Benchmarks
Crysis 3	-	74
Battlefield 4	64.3	65
Face detection (mPixels/s)	47.72	57.24
T-Rex (GFXBench 3.0)	3360.28	3359.76
Manhattan (GFXBench 3.0)	3719.86	3717.7
Bitcoin mining (mHash/s)	123.57	251.26
Sky Diver Factor	381.6	312.65
Thief	54.05	-
Fire Strike Factor	60.74	49.6