GeForce GTX 460 (OEM) vs GeForce GTX 780 Ti

Intro

Compare those specifications to the GeForce GTX 780 Ti, which comes with a GPU core clock speed of 875 MHz, and 3072 MB of GDDR5 RAM running at 1750 MHz through a 384-bit bus. It also is made up of 2880 SPUs, 240 Texture Address Units, and 48 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 (OEM)		150 Watts
GeForce GTX 780 Ti		250 Watts
	Difference: 100 Watts (67%)

Memory Bandwidth

Theoretically, the GeForce GTX 780 Ti should perform much faster than the GeForce GTX 460 (OEM) overall. (explain)

GeForce GTX 780 Ti		336000 MB/sec
GeForce GTX 460 (OEM)		108800 MB/sec
	Difference: 227200 (209%)

Texel Rate

The GeForce GTX 780 Ti will be quite a bit (about 477%) more effective at anisotropic filtering than the GeForce GTX 460 (OEM). (explain)

GeForce GTX 780 Ti		210000 Mtexels/sec
GeForce GTX 460 (OEM)		36400 Mtexels/sec
	Difference: 173600 (477%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 780 Ti is a better choice, by a large margin. (explain)

GeForce GTX 780 Ti		42000 Mpixels/sec
GeForce GTX 460 (OEM)		20800 Mpixels/sec
	Difference: 21200 (102%)

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 megabytes per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 once again. If 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics 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 maximum number of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.