GeForce GTX 465 vs GeForce GTX 780 Ti

Intro

Compare those specifications to the GeForce GTX 780 Ti, which comes with core speeds of 875 MHz on the GPU, and 1750 MHz on the 3072 MB of GDDR5 RAM. It features 2880 SPUs along with 240 TAUs and 48 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 465		200 Watts
GeForce GTX 780 Ti		250 Watts
	Difference: 50 Watts (25%)

Memory Bandwidth

In theory, the GeForce GTX 780 Ti should be 228% faster than the GeForce GTX 465 overall, because of its higher data rate. (explain)

GeForce GTX 780 Ti		336000 MB/sec
GeForce GTX 465		102592 MB/sec
	Difference: 233408 (228%)

Texel Rate

The GeForce GTX 780 Ti will be quite a bit (more or less 686%) better at texture filtering than the GeForce GTX 465. (explain)

GeForce GTX 780 Ti		210000 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 183292 (686%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 780 Ti is a better choice, and very much so. (explain)

GeForce GTX 780 Ti		42000 Mpixels/sec
GeForce GTX 465		19424 Mpixels/sec
	Difference: 22576 (116%)

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 maximum amount of data (measured in megabytes per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The better this number, the better the 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 maximum number of pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called 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 - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.