GeForce GTX 260 Core 216 vs GeForce GTX 275

Intro

Compare those specifications to the GeForce GTX 275, which comes with core clock speeds of 633 MHz on the GPU, and 1134 MHz on the 896 MB of GDDR3 memory. 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

Theoretically speaking, the GeForce GTX 275 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 is much (approximately 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 running with 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: Bandwidth is the max amount of information (in units of MB per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster 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 are processed per second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

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