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NVIDIA GeForce 7900 GT

Graphics Processor
G71
Pixel Shaders
24
Vertex Shaders
8
TMUs
24
ROPs
16
Memory Size
256 MB
Memory Type
GDDR3
Bus Width
256 bit
The GeForce 7900 GT was a graphics card by NVIDIA, launched in March 2006. Built on the 90 nm process, and based on the G71 graphics processor, in its G71-GT-N-A2 variant, the card supports DirectX 9.0c. The G71 graphics processor is an average sized chip with a die area of 196 mm² and 278 million transistors. It features 24 pixel shaders and 8 vertex shaders, 24 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). NVIDIA has placed 256 MB GDDR3 memory on the card, which are connected using a 256-bit memory interface. The GPU is operating at a frequency of 450 MHz, memory is running at 660 MHz.
Being a single-slot card, the NVIDIA GeForce 7900 GT draws power from 1x 6-pin power connectors, with power draw rated at 48 W maximum. Display outputs include: 2x DVI, 1x S-Video. GeForce 7900 GT is connected to the rest of the system using a PCI-Express 1.0 x16 interface.

Graphics Processor

GPU Name
G71
GPU Variant
G71-GT-N-A2
Architecture
Curie
Foundry
TSMC
Process Size
90 nm
Transistors
278 million
Die Size
196 mm²

Graphics Card

Release Date
Mar 9th, 2006
Generation
GeForce 7 PCIe
(7900)
Production
End-of-life
Bus Interface
PCIe 1.0 x16

Clock Speeds

GPU Clock
450 MHz
Memory Clock
660 MHz
1320 MHz effective

Memory

Memory Size
256 MB
Memory Type
GDDR3
Memory Bus
256 bit
Bandwidth
42.24 GB/s

Render Config

Pixel Shaders
24
Vertex Shaders
8
TMUs
24
ROPs
16

Theoretical Performance

Pixel Rate
7.200 GPixel/s
Vertex Rate
900.0 MVertices/s
Texture Rate
10.80 GTexel/s

Board Design

Slot Width
Single-slot
TDP
48 W
Outputs
2x DVI
1x S-Video
Power Connectors
1x 6-pin
Board Number
P455

Graphics Features

DirectX
9.0c
OpenGL
2.1
OpenCL
N/A
Vulkan
N/A
Shader Model
3.0

G71 GPU Notes

Codename: NV49
PureVideo HD: VP1
VDPAU: Not Supported

Retail boards based on this design (4)

Name GPU Clock Memory Clock Other Changes
Albatron 7900 GT 450 MHz 660 MHz
Albatron 7900 GT 512 MB 550 MHz 700 MHz 512 MB
Leadtek WinFast 7900 GT 450 MHz 660 MHz
Leadtek WinFast 7900 GT Extreme 520 MHz 715 MHz