GeForce GT 430 (OEM) vs Radeon HD 4890 1GB

Intro

Compare those specifications to the Radeon HD 4890 1GB, which features core speeds of 1000 MHz on the GPU, and 975 MHz on the 1024 MB of GDDR5 memory. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 (OEM)		60 Watts
Radeon HD 4890 1GB		190 Watts
	Difference: 130 Watts (217%)

Memory Bandwidth

As far as performance goes, the Radeon HD 4890 1GB should in theory be a lot better than the GeForce GT 430 (OEM) overall. (explain)

Radeon HD 4890 1GB		124800 MB/sec
GeForce GT 430 (OEM)		28800 MB/sec
	Difference: 96000 (333%)

Texel Rate

The Radeon HD 4890 1GB should be quite a bit (more or less 257%) faster with regards to anisotropic filtering than the GeForce GT 430 (OEM). (explain)

Radeon HD 4890 1GB		40000 Mtexels/sec
GeForce GT 430 (OEM)		11200 Mtexels/sec
	Difference: 28800 (257%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 4890 1GB is superior to the GeForce GT 430 (OEM), and very much so. (explain)

Radeon HD 4890 1GB		16000 Mpixels/sec
GeForce GT 430 (OEM)		2800 Mpixels/sec
	Difference: 13200 (471%)

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 maximum amount of data (in units of MB per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units 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 quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.