Geforce GTX 690 vs Radeon HD 5750 512MB

Intro

Compare those specs to the Radeon HD 5750 512MB, which comes with GPU core speed of 700 MHz, and 512 MB of GDDR5 memory set to run at 1150 MHz through a 128-bit bus. It also features 720(144x5) SPUs, 36 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB		86 Watts
Geforce GTX 690		300 Watts
	Difference: 214 Watts (249%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 690 will be 422% quicker than the Radeon HD 5750 512MB overall, due to its higher data rate. (explain)

Geforce GTX 690		384512 MB/sec
Radeon HD 5750 512MB		73600 MB/sec
	Difference: 310912 (422%)

Texel Rate

The Geforce GTX 690 is quite a bit (more or less 830%) better at AF than the Radeon HD 5750 512MB. (explain)

Geforce GTX 690		234240 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 209040 (830%)

Pixel Rate

If running with high levels of AA is important to you, then the Geforce GTX 690 is a better choice, by a large margin. (explain)

Geforce GTX 690		58560 Mpixels/sec
Radeon HD 5750 512MB		11200 Mpixels/sec
	Difference: 47360 (423%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the max amount of information (measured in MB per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the interface width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of 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.