GeForce GT 430 (OEM) vs Radeon HD 4870 1GB

Intro

Compare all that to the Radeon HD 4870 1GB, which has core speeds of 750 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR5 memory. It features 800(160x5) SPUs as well as 40 TAUs 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 4870 1GB		150 Watts
	Difference: 90 Watts (150%)

Memory Bandwidth

As far as performance goes, the Radeon HD 4870 1GB should theoretically be a lot better than the GeForce GT 430 (OEM) in general. (explain)

Radeon HD 4870 1GB		115200 MB/sec
GeForce GT 430 (OEM)		28800 MB/sec
	Difference: 86400 (300%)

Texel Rate

The Radeon HD 4870 1GB is a lot (approximately 168%) faster with regards to texture filtering than the GeForce GT 430 (OEM). (explain)

Radeon HD 4870 1GB		30000 Mtexels/sec
GeForce GT 430 (OEM)		11200 Mtexels/sec
	Difference: 18800 (168%)

Pixel Rate

The Radeon HD 4870 1GB should be a lot (more or less 329%) faster with regards to full screen anti-aliasing than the GeForce GT 430 (OEM), and will be able to handle higher resolutions without losing too much performance. (explain)

Radeon HD 4870 1GB		12000 Mpixels/sec
GeForce GT 430 (OEM)		2800 Mpixels/sec
	Difference: 9200 (329%)

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 information (measured in megabytes per second) that can be transported over the external memory interface in one second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed 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 graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.