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NVIDIA Quadro NVS 420

NVIDIA Quadro NVS 420 Image NVIDIA G98 Image
The Quadro NVS 420 was a professional graphics card by NVIDIA, launched in January 2009. Built on the 65 nm process, and based on the G98 graphics processor, the card supports DirectX 10.0. The G98 graphics processor is a relatively small chip with a die area of only 86 mm² and 210 million transistors. Quadro NVS 420 combines two graphics processors to increase performance. It features 8 shading units, 8 texture mapping units and 4 ROPs per GPU. NVIDIA has placed 512 MB GDDR3 memory on the card, which are connected using a 64-bit memory interface per GPU (each GPU manages 256 MB). The GPU is operating at a frequency of 550 MHz, memory is running at 700 MHz.
Being a single-slot card, the NVIDIA Quadro NVS 420 does not require any additional power connector, its power draw is rated at 40 W maximum. Quadro NVS 420 is connected to the rest of the system using a PCIe 1.0 x16 interface.

Graphics Processor

GPU Name: G98
Architecture: Tesla
Process Size: 65 nm
Transistors: 210 million
Die Size: 86 mm²

Graphics Card

Released: Jan 20th, 2009
Production Status: End-of-life
Bus Interface: PCIe 1.0 x16

Clock Speeds

GPU Clock: 550 MHz
Shader Clock: 1400 MHz
Memory Clock: 700 MHz
1400 MHz effective


Memory Size: 256 MB x2
Memory Type: GDDR3
Memory Bus: 64 bit x2
Bandwidth: 11.20 GB/s x2

Render Config

Shading Units: 8 x2
TMUs: 8 x2
ROPs: 4 x2
SM Count: 1 x2
Pixel Rate: 2.200 GPixel/s x2
Texture Rate: 4.40 GTexel/s x2
Floating-point performance: 22.400 GFLOPS x2

Board Design

Slot Width: Single-slot
TDP: 40 W
Power Connectors: None
Board Number: P737

Graphics Features

DirectX: 10.0
OpenGL: 3.3
OpenCL: N/A
CUDA: 1.1
Shader Model: 4.0


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Our review database contains 22 reviews of the Quadro NVS 420.