Comparison of Radeon HD 6870 X2 and Radeon HD 5870 Eyefinity 6

Attribute	Radeon HD 6870 X2 ×	Radeon HD 5870 Eyefinity 6 ×
GPU
Release year (year)	2011	2010
GPU brand	AMD	ATI
GPU name	Barts XT	Cypress
Market	Desktop	Desktop
Clock speed (MHz)	900	850
Is dual GPU	+	-
Model	Radeon HD 6870 X2	Radeon HD 5870 Eyefinity 6
Memory
Memory (MB)	2,048	2,048
Memory bandwidth (GB/s)	268.8	153.6
Memory bus (bit)	512	256
Memory type	GDDR5	GDDR5
Memory clock speed (MHz)	1,050	1,200
Effective memory clock speed (MHz)	4,200	4,800
Noise and power
TDP (W)	300	228
Raw performance
Pixel rate (GPixel/s)	57.6	27.2
Render output processors	64	32
Texture mapping units	112	80
Shading units	2,240	1,600
Floating-point performance (GFLOPS)	4,032	2,720
Compute units	28	20
Texture rate (GTexel/s)	100.8	68