GeForce GTX 660 Ti vs Radeon HD 5750 1GB

Intro

Compare that to the Radeon HD 5750 1GB, which features a clock frequency of 700 MHz and a GDDR5 memory frequency of 1150 MHz. It also features a 128-bit memory bus, and uses a 40 nm design. It features 720(144x5) SPUs, 36 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 1GB		86 Watts
GeForce GTX 660 Ti		150 Watts
	Difference: 64 Watts (74%)

Memory Bandwidth

In theory, the GeForce GTX 660 Ti should be a lot faster than the Radeon HD 5750 1GB in general. (explain)

GeForce GTX 660 Ti		144000 MB/sec
Radeon HD 5750 1GB		73600 MB/sec
	Difference: 70400 (96%)

Texel Rate

The GeForce GTX 660 Ti will be a lot (approximately 307%) better at texture filtering than the Radeon HD 5750 1GB. (explain)

GeForce GTX 660 Ti		102480 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 77280 (307%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 660 Ti is a better choice, by a large margin. (explain)

GeForce GTX 660 Ti		21960 Mpixels/sec
Radeon HD 5750 1GB		11200 Mpixels/sec
	Difference: 10760 (96%)

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 data (measured in megabytes per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the bus width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the 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 number of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the 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 that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.