GeForce GT 130 vs Radeon HD 7950

Intro

Compare those specifications to the Radeon HD 7950, which comes with GPU clock speed of 800 MHz, and 1536 MB of GDDR5 RAM set to run at 1250 MHz through a 384-bit bus. It also features 1792 SPUs, 112 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 130		75 Watts
Radeon HD 7950		200 Watts
	Difference: 125 Watts (167%)

Memory Bandwidth

Performance-wise, the Radeon HD 7950 should in theory be much better than the GeForce GT 130 in general. (explain)

Radeon HD 7950		240000 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 228000 (1900%)

Texel Rate

The Radeon HD 7950 is a lot (more or less 647%) faster with regards to texture filtering than the GeForce GT 130. (explain)

Radeon HD 7950		89600 Mtexels/sec
GeForce GT 130		12000 Mtexels/sec
	Difference: 77600 (647%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 7950 is superior to the GeForce GT 130, by a large margin. (explain)

Radeon HD 7950		25600 Mpixels/sec
GeForce GT 130		8000 Mpixels/sec
	Difference: 17600 (220%)

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 maximum amount of data (measured in MB per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 once 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 high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.