GeForce GT 430 (OEM) vs Radeon HD 4830 1GB

Intro

Compare all of that to the Radeon HD 4830 1GB, which has a core clock frequency of 575 MHz and a GDDR4 memory frequency of 900 MHz. It also uses a 256-bit memory bus, and uses a 55 nm design. It is made up of 640(128x5) SPUs, 32 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 (OEM)		60 Watts
Radeon HD 4830 1GB		95 Watts
	Difference: 35 Watts (58%)

Memory Bandwidth

As far as performance goes, the Radeon HD 4830 1GB should in theory be quite a bit better than the GeForce GT 430 (OEM) overall. (explain)

Radeon HD 4830 1GB		57600 MB/sec
GeForce GT 430 (OEM)		28800 MB/sec
	Difference: 28800 (100%)

Texel Rate

The Radeon HD 4830 1GB should be much (about 64%) faster with regards to anisotropic filtering than the GeForce GT 430 (OEM). (explain)

Radeon HD 4830 1GB		18400 Mtexels/sec
GeForce GT 430 (OEM)		11200 Mtexels/sec
	Difference: 7200 (64%)

Pixel Rate

The Radeon HD 4830 1GB is much (about 229%) better at AA than the GeForce GT 430 (OEM), and capable of handling higher resolutions better. (explain)

Radeon HD 4830 1GB		9200 Mpixels/sec
GeForce GT 430 (OEM)		2800 Mpixels/sec
	Difference: 6400 (229%)

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

Specifications

Memory Bandwidth: Bandwidth is the largest amount of data (counted in MB per second) that can be transported past the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics 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 that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.