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NVIDIA NV40

Default
NV40
6800 GT
6800 GT
6800 Ultra
6800 Ultra
Die Shot
SIC66SIC66
Die Shot
Block Diagram
Block Diagram
Vertex Diagram
Vertex Diagram
Pixel Diagram
Pixel Diagram
NVIDIA's NV40 GPU uses the Curie architecture and is made using a 130 nm production process at TSMC. With a die size of 287 mm² and a transistor count of 222 million it is a medium-sized chip. NV40 supports DirectX 9.0c (Feature Level 9_3). It features 16 pixel shaders and 6 vertex shaders, 16 texture mapping units and 16 ROPs. Due to the lack of unified shaders you will not be able to run recent games at all (which require unified shader/DX10+ support).
Further reading: GeForce 6 Architecture Whitepaper

Graphics Processor

GPU Name
NV40
Architecture
Curie
Foundry
TSMC
Process Size
130 nm
Transistors
222 million
Density
773.5K / mm²
Die Size
287 mm²
Released
Apr 1st, 2004

Graphics Features

DirectX
9.0c (9_3)
OpenGL
2.1
OpenCL
N/A
Vulkan
N/A
Shader Model
3.0
PureVideo HD
VP1

Render Config

Pixel Shaders
16
Vertex Shaders
6
TMUs
16
ROPs
16
Max. TDP
142 W

All Curie GPUs

NVIDIA GPU Architecture History

Graphics cards using the NVIDIA NV40 GPU

Name Chip Memory Shaders TMUs ROPs GPU Clock Memory Clock
NVIDIA GeForce 6800 Ultra 6800 Ultra 256 MB 16 / 6 16 16 425 MHz 550 MHz
NVIDIA GeForce 6800 GT 6800 GT 128 MB 16 / 6 16 16 350 MHz 250 MHz
NVIDIA GeForce 6800 LE 128 MB 8 / 4 8 8 300 MHz 350 MHz
NVIDIA GeForce 6800 128 MB 12 / 5 12 12 325 MHz 350 MHz
NVIDIA GeForce 6800 GS 256 MB 12 / 5 12 12 350 MHz 500 MHz
NVIDIA GeForce 6800 XT 256 MB 8 / 4 8 8 300 MHz 350 MHz
NVIDIA GeForce 6800 Ultra DDL 6800 Ultra 256 MB 16 / 6 16 16 400 MHz 550 MHz
NVIDIA Quadro FX 4000 NV40 GL 256 MB 12 / 5 12 8 375 MHz 500 MHz
NVIDIA GeForce 6800 XE 256 MB 8 / 3 8 8 275 MHz 266 MHz
NVIDIA GeForce 6800 GT DDL 6800 GT 256 MB 16 / 6 16 16 350 MHz 500 MHz