Geforce GTX 680 vs Radeon HD 5750 512MB

Intro

Compare that to the Radeon HD 5750 512MB, which features clock speeds of 700 MHz on the GPU, and 1150 MHz on the 512 MB of GDDR5 RAM. It features 720(144x5) SPUs as well as 36 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB		86 Watts
Geforce GTX 680		195 Watts
	Difference: 109 Watts (127%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 680 should be much faster than the Radeon HD 5750 512MB overall. (explain)

Geforce GTX 680		192256 MB/sec
Radeon HD 5750 512MB		73600 MB/sec
	Difference: 118656 (161%)

Texel Rate

The Geforce GTX 680 will be a lot (approximately 411%) faster with regards to texture filtering than the Radeon HD 5750 512MB. (explain)

Geforce GTX 680		128768 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 103568 (411%)

Pixel Rate

If using a high screen resolution is important to you, then the Geforce GTX 680 is a better choice, and very much so. (explain)

Geforce GTX 680		32192 Mpixels/sec
Radeon HD 5750 512MB		11200 Mpixels/sec
	Difference: 20992 (187%)

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 (in units of MB per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better 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 are processed in one second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.