GeForce GTX 660 vs Radeon HD 5750 512MB

Intro

Compare those specifications to the Radeon HD 5750 512MB, which has core 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 TAUs 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 660		140 Watts
	Difference: 54 Watts (63%)

Memory Bandwidth

The GeForce GTX 660 should theoretically be much faster than the Radeon HD 5750 512MB overall. (explain)

GeForce GTX 660		144192 MB/sec
Radeon HD 5750 512MB		73600 MB/sec
	Difference: 70592 (96%)

Texel Rate

The GeForce GTX 660 is a lot (approximately 211%) more effective at texture filtering than the Radeon HD 5750 512MB. (explain)

GeForce GTX 660		78400 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 53200 (211%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 660 is superior to the Radeon HD 5750 512MB, by far. (explain)

GeForce GTX 660		23520 Mpixels/sec
Radeon HD 5750 512MB		11200 Mpixels/sec
	Difference: 12320 (110%)

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 data (in units of megabytes per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better 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 number of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total texture units of the card by the core clock 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. 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 rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.