GeForce GT 430 (OEM) vs Radeon HD 5870

Intro

Compare that to the Radeon HD 5870, which comes with GPU clock speed of 850 MHz, and 1024 MB of GDDR5 memory running at 1200 MHz through a 256-bit bus. It also features 1600(320x5) Stream Processors, 80 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 (OEM)		60 Watts
Radeon HD 5870		188 Watts
	Difference: 128 Watts (213%)

Memory Bandwidth

As far as performance goes, the Radeon HD 5870 should theoretically be a lot better than the GeForce GT 430 (OEM) in general. (explain)

Radeon HD 5870		153600 MB/sec
GeForce GT 430 (OEM)		28800 MB/sec
	Difference: 124800 (433%)

Texel Rate

The Radeon HD 5870 should be quite a bit (more or less 507%) more effective at anisotropic filtering than the GeForce GT 430 (OEM). (explain)

Radeon HD 5870		68000 Mtexels/sec
GeForce GT 430 (OEM)		11200 Mtexels/sec
	Difference: 56800 (507%)

Pixel Rate

The Radeon HD 5870 should be quite a bit (more or less 871%) better at anti-aliasing than the GeForce GT 430 (OEM), and should be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon HD 5870		27200 Mpixels/sec
GeForce GT 430 (OEM)		2800 Mpixels/sec
	Difference: 24400 (871%)

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: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total amount of texture units of the card by the core 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 processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of 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.