GeForce GT 430 (OEM) vs Radeon HD 4850 2GB

Intro

Compare those specifications to the Radeon HD 4850 2GB, which features a GPU core clock speed of 625 MHz, and 2048 MB of GDDR4 memory running at 993 MHz through a 256-bit bus. It also is comprised of 800(160x5) SPUs, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 (OEM)		60 Watts
Radeon HD 4850 2GB		110 Watts
	Difference: 50 Watts (83%)

Memory Bandwidth

Performance-wise, the Radeon HD 4850 2GB should theoretically be quite a bit superior to the GeForce GT 430 (OEM) in general. (explain)

Radeon HD 4850 2GB		63552 MB/sec
GeForce GT 430 (OEM)		28800 MB/sec
	Difference: 34752 (121%)

Texel Rate

The Radeon HD 4850 2GB should be quite a bit (more or less 123%) more effective at anisotropic filtering than the GeForce GT 430 (OEM). (explain)

Radeon HD 4850 2GB		25000 Mtexels/sec
GeForce GT 430 (OEM)		11200 Mtexels/sec
	Difference: 13800 (123%)

Pixel Rate

The Radeon HD 4850 2GB will be a lot (approximately 257%) better at anti-aliasing than the GeForce GT 430 (OEM), and will be capable of handling higher resolutions more effectively. (explain)

Radeon HD 4850 2GB		10000 Mpixels/sec
GeForce GT 430 (OEM)		2800 Mpixels/sec
	Difference: 7200 (257%)

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 max amount of data (measured in MB per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at handling 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 the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.