GeForce GTX 260 216SP 55 nm vs Radeon HD 5750 1GB

Intro

Compare those specifications to the Radeon HD 5750 1GB, which makes use of a 40 nm design. AMD has set the core frequency at 700 MHz. The GDDR5 RAM runs at a frequency of 1150 MHz on this specific model. 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 260 216SP 55 nm		171 Watts
	Difference: 85 Watts (99%)

Memory Bandwidth

Theoretically, the GeForce GTX 260 216SP 55 nm should perform quite a bit faster than the Radeon HD 5750 1GB overall. (explain)

GeForce GTX 260 216SP 55 nm		111888 MB/sec
Radeon HD 5750 1GB		73600 MB/sec
	Difference: 38288 (52%)

Texel Rate

The GeForce GTX 260 216SP 55 nm is much (more or less 65%) more effective at texture filtering than the Radeon HD 5750 1GB. (explain)

GeForce GTX 260 216SP 55 nm		41472 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 16272 (65%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 260 216SP 55 nm is a better choice, by far. (explain)

GeForce GTX 260 216SP 55 nm		16128 Mpixels/sec
Radeon HD 5750 1GB		11200 Mpixels/sec
	Difference: 4928 (44%)

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 data (in units of megabytes per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better 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 processed per second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling 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 write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.