Comparison of Radeon HD 5770 Engineering Sample and GeForce GTX 775M Mac

Attribute	GeForce GTX 775M Mac ×	Radeon HD 5770 Engineering Sample ×
GPU
Release year (year)	2013	2009
Reference card	-	ATi Radeon HD 5770 850 MHz 1 GB
GPU brand	Nvidia	ATI
GPU name	GK104	Juniper
Market	Laptop	Desktop
Clock speed (MHz)	797	850
Is dual GPU	-	-
Model	GeForce GTX 775M Mac	Radeon HD 5770 Engineering Sample
Memory
Memory (MB)	2,048	1,024
Memory bandwidth (GB/s)	160	76.8
Memory bus (bit)	256	128
Memory type	GDDR5	GDDR5
Memory clock speed (MHz)	1,250	1,200
Effective memory clock speed (MHz)	5,000	4,800
Noise and power
TDP (W)	100	108
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)	22.32	13.6
Render output processors	32	16
Texture mapping units	112	40
Shading units	1,344	800
Floating-point performance (GFLOPS)	2,142	1,360
Compute units	-	10
Texture rate (GTexel/s)	89.3	34
Benchmarks
Particle simulation (mInteraction/s)	280.4	-
T-Rex (Compubench 1.5) (frames/s)	3.11	-
Video composition (frames/s)	56.67	-
Crysis 3	-	40
Face detection (mPixels/s)	30.36	9.96
T-Rex (GFXBench 3.0)	3357.2	3353.2
Manhattan (GFXBench 3.0)	3716.26	3507.76
Bitcoin mining (mHash/s)	66.6	122.81
Sky Diver Factor	-	140.24
Fire Strike Factor	-	19.74
Ocean surface simulation (frames/s)	1075.94	461.22