GeForce GTX 750 vs Radeon HD 5750 512MB

Intro

Compare all of that to the Radeon HD 5750 512MB, which comes with GPU core speed of 700 MHz, and 512 MB of GDDR5 RAM running at 1150 MHz through a 128-bit bus. It also is made up of 720(144x5) Stream Processors, 36 TAUs, 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

Theoretically speaking, the GeForce GTX 750 will be 9% faster than the Radeon HD 5750 512MB overall, due to its greater bandwidth. (explain)

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

Texel Rate

The GeForce GTX 750 is quite a bit (approximately 30%) faster with regards to AF 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

The GeForce GTX 750 will be a lot (approximately 46%) faster with regards to full screen anti-aliasing than the Radeon HD 5750 512MB, and capable of handling higher resolutions better. (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 maximum amount of information (counted in MB per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total amount of texture units of the card by the core clock 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 applied in a second.

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