Comparison of Radeon HD 8870 and Radeon HD 8850

Attribute	Radeon HD 8870 ×	Radeon HD 8850 ×
GPU
Release year (year)	2013	2013
GPU brand	AMD	AMD
GPU name	Hainan XT	Hainan PRO
Market	Desktop	Desktop
Clock speed (MHz)	925	1,000
Turbo clock speed (MHz)	975	-
Is dual GPU	-	-
Model	Radeon HD 8870	Radeon HD 8850
Memory
Memory (MB)	2,048	2,048
Memory bandwidth (GB/s)	192	153.6
Memory bus (bit)	256	256
Memory type	GDDR5	GDDR5
Memory clock speed (MHz)	1,500	1,200
Effective memory clock speed (MHz)	6,000	4,800
Noise and power
TDP (W)	185	150
Raw performance
Pixel rate (GPixel/s)	29.6	32
Render output processors	32	32
Texture mapping units	128	96
Shading units	2,048	1,536
Floating-point performance (GFLOPS)	3,789	3,072
Compute units	32	24
Texture rate (GTexel/s)	118.4	96