GeForce 200 Series

he GeForce 200 Series is the tenth generation of NVIDIA's GeForce graphics processing units. The series also represents the continuation of the company's unified shader architecture introduced with the GeForce 8 Series and the GeForce 9 Series.

The GeForce GTX 280 and 260 are based on the same processor core. During the manufacturing process, GTX chips are binned and separated through defect testing of the core's logic functionality. Those that fail to meet the GTX 280 hardware specification are re-tested and binned as GTX 260 (which is specified with fewer stream processors and a narrower memory bus). In late 2008, in order to create more parity between the GTX 260 and the competing HD 4870, Nvidia re-released the GTX 260 with 216 stream processors up from 192. Effectively, there are two GTX 260 cards in production with non-trivial performance differences.

As of June 2008^[update], the G200 is the largest commercial GPU ever constructed. It consists of 1.4 billion transistors covering a 576mm² die surface area built on a 65nm process.^[1] To date, the G200 is the largest CMOS-logic chip that has been fabricated at the TSMC foundry.

Model	Year	Code name	Fab (nm)	Transistors (Million)	Die Size (mm 2)	Bus interface	Memory min (MiB)	Config core 1	Reference clock rate			Fillrate		Reference Memory Configuration			Graphics library support (version		GFLOPs2 (MADD+MUL)	TDP (Watts)	Comments
									Core (MHz)	Shader (MHz)	Memory (MHz)	Pixel (GP/s)	Texture (GT/s)	Bandwidth (GiB/s)	DRAM type	Bus width (bit)	DirectX	OpenGL
GeForce GTS 250	March 3, 2009	G92a/b	65/55	754	324/230	PCIe x16 2.0	512 or 1024	128:64:16	738	1836	2200	11.808	47.232	70.4	GDDR3	256	10	3.0[2]	705	145	Some 512MB cards are rebranded GeForce 9800 GTX+ cards.
GeForce GTX 260	June 26, 2008	G200	65	1400	576	PCIe x16 2.0	896	192:64:28	576	1242	1998	16.128	36.864	111.9	GDDR3	448 32x14	10	3.0[2]	715	182
GeForce GTX 260 216SP[3]	September 16, 2008	G200	65	1400	576	PCIe x16 2.0	896	216:72:28	576	1242	1998	16.128	41.472	111.9	GDDR3	448 32x14	10	3.0[2]	805	182
GeForce GTX 260 216SP 55nm[4]	December 22, 2008	G200b	55	1400	470	PCIe x16 2.0	896	216:72:28	576	1242	1998	16.128	41.472	111.9	GDDR3	448 32x14	10	3.0[2]	805	171
GeForce GTX 275[5]	April 2, 2009	G200b	55	1400	470	PCIe x16 2.0	896	240:80:28	633	1404	2268	17.7~18.1?	50.6	127.0	GDDR3	448 32x14	10	3.0[2]	1010.88	219
GeForce GTX 280 [6][7]	June 17, 2008	G200	65	1400	576	PCIe x16 2.0	1024	240:80:32	602	1296	2214	19.264	48.16	141.7	GDDR3	512 32x16	10	3.0[2]	933	236
GeForce GTX 285 [8] [9]	January 15, 2009	G200b	55	1400	470	PCIe x16 2.0	1024	240:80:32	648	1476	2484	20.736	51.84	159.0	GDDR3	512 32x16	10	3.0[2]	1062.72	183
GeForce GTX 295	January 8, 2009	G200b	55	2x 1400	2x 470	PCIe x16 2.0	2x 896	2x 240:80:28	576	1242	1998	2x 16.128	2x 46.08	2x 111.9	GDDR3	2x 448 32x14	10	3.0[2]	1788.48	289