GeForce GTX 780 Ti vs Radeon HD 5750 1GB

Intro

Compare those specs to the Radeon HD 5750 1GB, which has GPU clock speed of 700 MHz, and 1024 MB of GDDR5 memory set to run at 1150 MHz through a 128-bit bus. It also is comprised of 720(144x5) Stream Processors, 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 1GB		86 Watts
GeForce GTX 780 Ti		250 Watts
	Difference: 164 Watts (191%)

Memory Bandwidth

The GeForce GTX 780 Ti, in theory, should be much faster than the Radeon HD 5750 1GB in general. (explain)

GeForce GTX 780 Ti		336000 MB/sec
Radeon HD 5750 1GB		73600 MB/sec
	Difference: 262400 (357%)

Texel Rate

The GeForce GTX 780 Ti will be much (more or less 733%) better at anisotropic filtering than the Radeon HD 5750 1GB. (explain)

GeForce GTX 780 Ti		210000 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 184800 (733%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 780 Ti is a better choice, by a large margin. (explain)

GeForce GTX 780 Ti		42000 Mpixels/sec
Radeon HD 5750 1GB		11200 Mpixels/sec
	Difference: 30800 (275%)

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 max amount of information (in units of megabytes per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better 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 can be processed in one second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its 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 clock speed. ROPs (Raster Operations Pipelines - aka 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 memory bandwidth is, the lower the ability to get to the max fill rate.