Comparison of Radeon HD 7690M XT and Radeon HD 8770M

Attribute	Radeon HD 7690M XT ×	Radeon HD 8770M ×
GPU
Release year (year)	2013	2013
Reference card	AMD Radeon HD 7690M XT Rebrand 725 MHz 1 GB	-
GPU brand	AMD	AMD
GPU name	Thames	Mars
Market	Laptop	Laptop
Clock speed (MHz)	725	775
Turbo clock speed (MHz)	-	825
Is dual GPU	-	-
Model	Radeon HD 7690M XT	Radeon HD 8770M
Memory
Memory (MB)	2,048	2,048
Memory bandwidth (GB/s)	57.6	72
Memory bus (bit)	128	128
Memory type	GDDR5	GDDR5
Memory clock speed (MHz)	900	1,125
Effective memory clock speed (MHz)	3,600	4,500
Noise and power
TDP (W)	25	-
Raw performance
Pixel rate (GPixel/s)	5.8	6.6
^1↑Render output processors	8	8
Texture mapping units	24	24
Shading units	480	384
Floating-point performance (GFLOPS)	696	634
Compute units	6	6
Texture rate (GTexel/s)	17.4	19.8
Benchmarks
Battlefield 3	10	-
3DMark 11 Graphics	10,919	12,680
3DMark Vantage Graphics	5,594	7,078
3DMark06	1,346	1,934
Crysis 2	17	-
Cloud Gate Factor	12.33	-
Sky Diver Factor	86.03	-