GeForce GTX 260 216SP 55 nm vs GeForce GTX 750 Ti

Intro

Compare all of that to the GeForce GTX 750 Ti, which makes use of a 28 nm design. nVidia has clocked the core speed at 1020 MHz. The GDDR5 memory is set to run at a frequency of 1350 MHz on this particular model. It features 640 SPUs as well as 40 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750 Ti		60 Watts
GeForce GTX 260 216SP 55 nm		171 Watts
	Difference: 111 Watts (185%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 260 216SP 55 nm should in theory be a lot better than the GeForce GTX 750 Ti overall. (explain)

GeForce GTX 260 216SP 55 nm		111888 MB/sec
GeForce GTX 750 Ti		86400 MB/sec
	Difference: 25488 (30%)

Texel Rate

The GeForce GTX 260 216SP 55 nm is a small bit (approximately 2%) more effective at texture filtering than the GeForce GTX 750 Ti. (explain)

GeForce GTX 260 216SP 55 nm		41472 Mtexels/sec
GeForce GTX 750 Ti		40800 Mtexels/sec
	Difference: 672 (2%)

Pixel Rate

The GeForce GTX 750 Ti will be a little bit (about 1%) better at FSAA than the GeForce GTX 260 216SP 55 nm, and should be able to handle higher resolutions more effectively. (explain)

GeForce GTX 750 Ti		16320 Mpixels/sec
GeForce GTX 260 216SP 55 nm		16128 Mpixels/sec
	Difference: 192 (1%)

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: Bandwidth is the largest amount of information (in units of MB per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.