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GeForce GT 430 1GB vs Radeon HD 5830


Intro

The GeForce GT 430 1GB makes use of a 40 nm design. nVidia has set the core speed at 700 MHz. The GDDR3 RAM runs at a frequency of 900 MHz on this model. It features 96 SPUs as well as 16 Texture Address Units and 4 Rasterization Operator Units.

Compare those specifications to the Radeon HD 5830, which features a clock frequency of 800 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 256-bit memory bus, and uses a 40 nm design. It features 1120(224x5) SPUs, 56 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 1GB 60 Watts
Radeon HD 5830 175 Watts
Difference: 115 Watts (192%)

Memory Bandwidth

In theory, the Radeon HD 5830 should be quite a bit faster than the GeForce GT 430 1GB overall. (explain)

Radeon HD 5830 128000 MB/sec
GeForce GT 430 1GB 28800 MB/sec
Difference: 99200 (344%)

Texel Rate

The Radeon HD 5830 is a lot (approximately 300%) more effective at anisotropic filtering than the GeForce GT 430 1GB. (explain)

Radeon HD 5830 44800 Mtexels/sec
GeForce GT 430 1GB 11200 Mtexels/sec
Difference: 33600 (300%)

Pixel Rate

The Radeon HD 5830 is a lot (approximately 357%) more effective at FSAA than the GeForce GT 430 1GB, and will be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon HD 5830 12800 Mpixels/sec
GeForce GT 430 1GB 2800 Mpixels/sec
Difference: 10000 (357%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

GeForce GT 430 1GB

Radeon HD 5830

Specifications

Display Specifications

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Model GeForce GT 430 1GB Radeon HD 5830
Manufacturer nVidia AMD
Year October 2010 February 25, 2010
Code Name GF108 Cypress LE
Memory 1024 MB 1024 MB
Core Speed 700 MHz 800 MHz
Memory Speed 1800 MHz 4000 MHz
Power (Max TDP) 60 watts 175 watts
Bandwidth 28800 MB/sec 128000 MB/sec
Texel Rate 11200 Mtexels/sec 44800 Mtexels/sec
Pixel Rate 2800 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 96 1120(224x5)
Texture Mapping Units 16 56
Render Output Units 4 16
Bus Type GDDR3 GDDR5
Bus Width 128-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 585 million 2154 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

GeForce GT 430 1GB

Radeon HD 5830

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