GeForce GTX 750 vs Radeon HD 5750 512MB

Intro

Compare those specifications to the Radeon HD 5750 512MB, which comes with a core clock speed of 700 MHz and a GDDR5 memory speed of 1150 MHz. It also uses a 128-bit memory bus, and makes use of a 40 nm design. It is made up of 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)

GeForce GTX 750		55 Watts
Radeon HD 5750 512MB		86 Watts
	Difference: 31 Watts (56%)

Memory Bandwidth

The GeForce GTX 750, in theory, should perform a little bit faster than the Radeon HD 5750 512MB in general. (explain)

GeForce GTX 750		80000 MB/sec
Radeon HD 5750 512MB		73600 MB/sec
	Difference: 6400 (9%)

Texel Rate

The GeForce GTX 750 should be a lot (about 30%) better at texture filtering than the Radeon HD 5750 512MB. (explain)

GeForce GTX 750		32640 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 7440 (30%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 750 is the winner, by a large margin. (explain)

GeForce GTX 750		16320 Mpixels/sec
Radeon HD 5750 512MB		11200 Mpixels/sec
	Difference: 5120 (46%)

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 largest amount of information (counted in megabytes per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

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