Comparison of Radeon HD 6970 and Radeon R9 270

Attribute	Radeon HD 6970 ×	Radeon R9 270 ×
GPU
Release year (year)	2010	2013
GPU brand	AMD	AMD
GPU name	Cayman XT	Curacao
Market	Desktop	Desktop
Clock speed (MHz)	880	900
Turbo clock speed (MHz)	-	925
Is dual GPU	-	-
Model	Radeon HD 6970	Radeon R9 270
Memory
Memory (MB)	2,048	2,048
Memory bandwidth (GB/s)	176	179.2
Memory bus (bit)	256	256
Memory type	GDDR5	GDDR5
Memory clock speed (MHz)	1,375	1,400
Effective memory clock speed (MHz)	5,500	5,600
Noise and power
TDP (W)	250	150
Load power consumption (W)	370	-
Idle power consumption (W)	120	-
Load noise level (dB)	53.2	-
Idle noise level (dB)	42.7	-
Raw performance
Pixel rate (GPixel/s)	28.16	29.6
Render output processors	32	32
Texture mapping units	96	80
Shading units	1,536	1,280
Floating-point performance (GFLOPS)	2,703	2,368
Compute units	24	20
Texture rate (GTexel/s)	84.48	74
Benchmarks
Battlefield 3	57	-
Crysis 3	-	74
Battlefield 4	90	65
Face detection (mPixels/s)	18.68	57.24
T-Rex (GFXBench 3.0)	3351.26	3359.76
Manhattan (GFXBench 3.0)	3706.33	3717.7
Bitcoin mining (mHash/s)	274.06	251.26
Sky Diver Factor	255.16	312.65
Fire Strike Factor	37.18	49.6