nVIDIA GS vs GT vs GTS vs GTX

The Ranking for nVIDIA cards goes as follows:

• G or GS - The standard video cards with core clocks that are not high and are made to keep a minimum performance.
• GT - Slightly higher core clocks and possibly more onboard memory than the GT, It is mainly a budget performance card.
• GTS - Includes possibly more onboard ram and higher than average core clocks possibly more pixel shaders or pipelines to increase performance.
• GTX - Has the most memory of the group and higher clocks than all previous also includes more pixel pipelines and usually outperforms the GTS by atleast 10 - 15 percent.

 

 Comparision;

Prefix	Target	Number Range	Price range (USD)	Shader amount	Memory			Outputs	Example products
					Type	Width	Size
No prefix, G, or GT	Business, HTPC	00-40	≤$100	≤25%	DDR2, (G)DDR3	25%-50%	~25%	VGA/DVI	GeForce 210, GeForce GT 220, GeForce G 405, GeForce 430, GeForce GT 440
GT, GTS	Video Games, Multimedia	40-50	$100–$175	25%-50%	(G)DDR3, GDDR5	50%-75%	50%-75%	VGA/DVI Two DVI	GeForce GT 240, GeForce GTS 250, GeForce GTS 450
GTX	Enthusiast	50-95	≥$175	50%-100%	GDDR5	75%-100%	50%-100%	VGA/DVI Two DVI DVI/HDMI	(200 Series) GeForce GTX 260/275/280/285/295, (400 Series) GeForce GTX 460/465/470/480, (500 Series) GeForce GTX 550 Ti/560/560 Ti/570/580/590

Ref: http://en.wikipedia.org/wiki/GeForce