GeForce GTX 260 Core 216 vs GeForce GTX 275

Intro

Compare those specifications to the GeForce GTX 275, which makes use of a 55 nm design. nVidia has set the core frequency at 633 MHz. The GDDR3 memory works at a speed of 1134 MHz on this specific model. It features 240 SPUs as well as 80 TAUs and 28 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 260 Core 216		202 Watts
GeForce GTX 275		219 Watts
	Difference: 17 Watts (8%)

Memory Bandwidth

The GeForce GTX 275, in theory, should perform a small bit faster than the GeForce GTX 260 Core 216 in general. (explain)

GeForce GTX 275		127008 MB/sec
GeForce GTX 260 Core 216		111888 MB/sec
	Difference: 15120 (14%)

Texel Rate

The GeForce GTX 275 will be quite a bit (more or less 22%) more effective at anisotropic filtering than the GeForce GTX 260 Core 216. (explain)

GeForce GTX 275		50640 Mtexels/sec
GeForce GTX 260 Core 216		41472 Mtexels/sec
	Difference: 9168 (22%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 275 is superior to the GeForce GTX 260 Core 216, though only just barely. (explain)

GeForce GTX 275		17724 Mpixels/sec
GeForce GTX 260 Core 216		16128 Mpixels/sec
	Difference: 1596 (10%)

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 (counted in megabytes per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one 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 processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.