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NVIDIA GeForce 7900 GX2

Graphics Processor
G71 x2
Pixel Shaders
24 x2
Vertex Shaders
8 x2
TMUs
24 x2
ROPs
16 x2
Memory Size
512 MB x2
Memory Type
GDDR3
Bus Width
256 bit x2
The GeForce 7900 GX2 was a high-end graphics card by NVIDIA, launched in April 2006. Built on the 90 nm process, and based on the G71 graphics processor, 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. GeForce 7900 GX2 combines two graphics processors to increase performance. It features 24 pixel shaders and 8 vertex shaders, 24 texture mapping units and 16 ROPs per GPU. 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 1,024 MB GDDR3 memory on the card, which are connected using a 256-bit memory interface per GPU (each GPU manages 512 MB). The GPU is operating at a frequency of 500 MHz, memory is running at 600 MHz.
Being a dual-slot card, the NVIDIA GeForce 7900 GX2 draws power from 2x 6-pin power connectors, with power draw not exactly known. Display outputs include: 2x DVI, 1x S-Video. GeForce 7900 GX2 is connected to the rest of the system using a PCI-Express 1.0 x16 interface. The card measures 312 mm in length, and features a dual-slot cooling solution. Its price at launch was 599 US Dollars.

Graphics Processor

GPU Name
G71
Architecture
Curie
Foundry
TSMC
Process Size
90 nm
Transistors
278 million
Die Size
196 mm²

Graphics Card

Release Date
Apr 30th, 2006
Generation
GeForce 7 PCIe
(7900)
Production
End-of-life
Launch Price
599 USD
Bus Interface
PCIe 1.0 x16

Clock Speeds

GPU Clock
500 MHz
Memory Clock
600 MHz
1200 MHz effective

Memory

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

Render Config

Pixel Shaders
24
Vertex Shaders
8
TMUs
24
ROPs
16

Theoretical Performance

Pixel Rate
8.000 GPixel/s
Vertex Rate
1.000 GVertices/s
Texture Rate
12.00 GTexel/s

Board Design

Slot Width
Dual-slot
Length
12.29 inches
312 mm
TDP
unknown
Outputs
2x DVI
1x S-Video
Power Connectors
2x 6-pin
Board Number
P278,
P378

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