Comparison of NVIDIA Quadro 4000 Mac Edition and AMD FireStream 9270

Attribute	AMD FireStream 9270 ×	NVIDIA Quadro 4000 Mac Edition ×
GPU
Release year (year)	2008	2011
GPU brand	AMD	Nvidia
GPU name	RV770	GF100
Clock speed (MHz)	750	475
Is dual GPU	-	-
Model	AMD FireStream 9270	NVIDIA Quadro 4000 Mac Edition
Memory
Memory (MB)	2,048	1,792
Memory bandwidth (GB/s)	115.2	89.9
Memory bus (bit)	256	256
Memory type	GDDR5	GDDR5
Memory clock speed (MHz)	900	702
Effective memory clock speed (MHz)	3,600	2,808
Noise and power
TDP (W)	160	142
Raw performance
Pixel rate (GPixel/s)	12	7.6
Render output processors	16	32
Texture mapping units	40	32
Shading units	800	256
Floating-point performance (GFLOPS)	1,200	486
Compute units	10	-
Texture rate (GTexel/s)	30	15.2