Comparison of Mobility Radeon HD 5870 and Radeon HD 5770

Attribute	Radeon HD 5770 ×	Mobility Radeon HD 5870 ×
GPU
Release year (year)	2009	2010
GPU brand	ATI	ATI
GPU name	Juniper	Broadway
Market	Desktop	Laptop
Clock speed (MHz)	850	700
Is dual GPU	-	-
Model	Radeon HD 5770	Mobility Radeon HD 5870
Memory
Memory (MB)	1,024	1,024
Memory bandwidth (GB/s)	76.8	64
Memory bus (bit)	128	128
Memory type	GDDR5	GDDR5
Memory clock speed (MHz)	1,200	1,000
Effective memory clock speed (MHz)	4,800	4,000
Noise and power
TDP (W)	108	50
Load power consumption (W)	258	-
Idle power consumption (W)	113	-
Load noise level (dB)	41	-
Idle noise level (dB)	40.4	-
Raw performance
Pixel rate (GPixel/s)	13.6	11.2
Render output processors	16	16
Texture mapping units	40	40
Shading units	800	800
Floating-point performance (GFLOPS)	1,360	1,120
Compute units	10	10
Texture rate (GTexel/s)	34	28
Benchmarks
Crysis 3	40	-
Cloud Gate Factor	-	11.22
Face detection (mPixels/s)	9.96	8.23
T-Rex (GFXBench 3.0)	3353.2	3355.24
Manhattan (GFXBench 3.0)	3507.76	3719.68
Bitcoin mining (mHash/s)	122.81	98.61
Sky Diver Factor	140.24	118.32
Fire Strike Factor	19.74	13.24
Ocean surface simulation (frames/s)	461.22	585.97