GeForce GTX 460 1GB vs Radeon HD 5750 1GB

Intro

Compare those specifications to the Radeon HD 5750 1GB, which has clock speeds of 700 MHz on the GPU, and 1150 MHz on the 1024 MB of GDDR5 memory. It features 720(144x5) SPUs along with 36 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 1GB		86 Watts
GeForce GTX 460 1GB		160 Watts
	Difference: 74 Watts (86%)

Memory Bandwidth

In theory, the GeForce GTX 460 1GB is 57% faster than the Radeon HD 5750 1GB overall, because of its greater data rate. (explain)

GeForce GTX 460 1GB		115200 MB/sec
Radeon HD 5750 1GB		73600 MB/sec
	Difference: 41600 (57%)

Texel Rate

The GeForce GTX 460 1GB should be quite a bit (more or less 50%) better at anisotropic filtering than the Radeon HD 5750 1GB. (explain)

GeForce GTX 460 1GB		37800 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 12600 (50%)

Pixel Rate

The GeForce GTX 460 1GB will be quite a bit (approximately 93%) more effective at AA than the Radeon HD 5750 1GB, and also should be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 460 1GB		21600 Mpixels/sec
Radeon HD 5750 1GB		11200 Mpixels/sec
	Difference: 10400 (93%)

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 (in units of MB per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The better 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 most pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units 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 rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.