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NVIDIA GeForce 7900 GS

Graphics Processor
G71
Pixel Shaders
20
Vertex Shaders
7
TMUs
20
ROPs
16
Memory Size
256 MB
Memory Type
GDDR3
Bus Width
256 bit
The GeForce 7900 GS was a performance graphics card by NVIDIA, launched in May 2006. Built on the 90 nm process, and based on the G71 graphics processor, in its G71-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 20 pixel shaders and 7 vertex shaders, 20 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 GS draws power from 1x 6-pin power connectors, with power draw rated at 49 W maximum. Display outputs include: 2x DVI, 1x S-Video. GeForce 7900 GS is connected to the rest of the system using a PCI-Express 1.0 x16 interface. The card measures 198 mm in length, and features a single-slot cooling solution. Its price at launch was 259 US Dollars.

Graphics Processor

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

Graphics Card

Release Date
May 1st, 2006
Generation
GeForce 7 PCIe
(7900)
Production
End-of-life
Launch Price
259 USD
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
20
Vertex Shaders
7
TMUs
20
ROPs
16

Theoretical Performance

Pixel Rate
7.200 GPixel/s
Vertex Rate
787.5 MVertices/s
Texture Rate
9.000 GTexel/s

Board Design

Slot Width
Single-slot
Length
7.8 inches
198 mm
TDP
49 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 (3)

Name GPU Clock Memory Clock Other Changes
Galaxy 7900 GS Zalman Premium Edition 540 MHz 750 MHz
ZOTAC 7900 GS 512 MB 450 MHz 700 MHz 512 MB
ZOTAC 7900 GS AMP! Edition 570 MHz 750 MHz