GeForce GT 130 vs Radeon HD 6970

Intro

Compare all of that to the Radeon HD 6970, which has a core clock frequency of 880 MHz and a GDDR5 memory frequency of 1375 MHz. It also features a 256-bit bus, and makes use of a 40 nm design. It is made up of 1536 SPUs, 96 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 6970		250 Watts
	Difference: 175 Watts (233%)

Memory Bandwidth

In theory, the Radeon HD 6970 will be 1367% faster than the GeForce GT 130 overall, due to its greater bandwidth. (explain)

Radeon HD 6970		176000 MB/sec
GeForce GT 130		12000 MB/sec
	Difference: 164000 (1367%)

Texel Rate

The Radeon HD 6970 should be quite a bit (about 604%) more effective at AF than the GeForce GT 130. (explain)

Radeon HD 6970		84480 Mtexels/sec
GeForce GT 130		12000 Mtexels/sec
	Difference: 72480 (604%)

Pixel Rate

The Radeon HD 6970 is quite a bit (approximately 252%) more effective at AA than the GeForce GT 130, and also will be able to handle higher screen resolutions more effectively. (explain)

Radeon HD 6970		28160 Mpixels/sec
GeForce GT 130		8000 Mpixels/sec
	Difference: 20160 (252%)

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 information (counted in megabytes per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. 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 can be processed per 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 video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory in a 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 called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.