Graphics Processor

GPU Name:	GT200
Process Size:	65 nm
Transistors:	1,400 million
Die Size:	576 mm²

Graphics Card

Released:	Jun 16th, 2008
Production Status:	End-of-life
Launch Price:	649 USD
Bus Interface:	PCIe 2.0 x16

Clock Speeds

GPU Clock:	602 MHz
Shader Clock:	1296 MHz
Memory Clock:	1107 MHz 2214 MHz effective

Memory

Memory Size:	1024 MB
Memory Type:	GDDR3
Memory Bus:	512 bit
Bandwidth:	142 GB/s

Render Config

Shading Units:	240
TMUs:	80
ROPs:	32
SM Count:	10
Pixel Rate:	19.3 GPixel/s
Texture Rate:	48.2 GTexel/s
Floating-point performance:	622.1 GFLOPS

Reference Board

Slot Width:	Dual-slot
Length:	10.5 inches 267 mm
TDP:	236 W
Outputs:	2x DVI 1x S-Video

Graphics Features

DirectX:	10.0
OpenGL:	3.3
OpenCL:	n/a
Shader Model:	4.0

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Reviews

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Card Notes

Compute Capability: 1.3

SFUs: 20

GT200 GPU Notes

G200-300-A2

Each Streaming Multiprocessor(SM) in the chip architecture contains 8 SPs and 2 SFUs.

Each SP can fulfill up to two single precision operations MAD per clock.

Each SFU can fulfill up to four operations SF per clock (these units can also handle single-precision floating-point multiplications per clock).

The approximate ratio of operations MAD to operations SF is equal 2:1.

The theoretical SP + SFU performance in single-precision floating point operations [FLOPSsp + sfu, GFLOPS] of the graphics card with shader count [n] and shader frequency [f, GHz], is estimated by the following formula: FLOPSsp+sfu ≈ f × n × 3.

Alternative formula: FLOPSsp+sfu ≈ f × m × ( 8 SPs * 2 (MAD) + 4 * 2 SFUs ). [m] - SM count.

SP - Shader Processor (Unified Shader, CUDA Core)
SFU - Special Function Unit
SM - Streaming Multiprocessor
MAD - ADD+MUL

Retail boards based on this design

Name	GPU Clock	Memory Clock
ASUS GTX 280 OC	625 MHz	1140 MHz
ASUS GTX 280 TOP	670 MHz	1215 MHz
ZOTAC GTX 280 AMP! Edition	700 MHz	1150 MHz

NVIDIA GeForce GTX 280