GeForce GTX 260 Core 216 vs GeForce GTX 660 Ti

Intro

Compare all that to the GeForce GTX 660 Ti, which has core clock speeds of 915 MHz on the GPU, and 1500 MHz on the 2048 MB of GDDR5 RAM. It features 1344 SPUs as well as 112 TAUs and 24 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660 Ti		150 Watts
GeForce GTX 260 Core 216		202 Watts
	Difference: 52 Watts (35%)

Memory Bandwidth

In theory, the GeForce GTX 660 Ti should perform quite a bit faster than the GeForce GTX 260 Core 216 in general. (explain)

GeForce GTX 660 Ti		144000 MB/sec
GeForce GTX 260 Core 216		111888 MB/sec
	Difference: 32112 (29%)

Texel Rate

The GeForce GTX 660 Ti is a lot (about 147%) better at anisotropic filtering than the GeForce GTX 260 Core 216. (explain)

GeForce GTX 660 Ti		102480 Mtexels/sec
GeForce GTX 260 Core 216		41472 Mtexels/sec
	Difference: 61008 (147%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 660 Ti is the winner, by a large margin. (explain)

GeForce GTX 660 Ti		21960 Mpixels/sec
GeForce GTX 260 Core 216		16128 Mpixels/sec
	Difference: 5832 (36%)

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 largest amount of information (in units of MB per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.