GeForce GT 440 3GB vs GeForce GTX 780 Ti

Intro

Compare all of that to the GeForce GTX 780 Ti, which has a core clock speed of 875 MHz and a GDDR5 memory frequency of 1750 MHz. It also features a 384-bit memory bus, and makes use of a 28 nm design. It is comprised of 2880 SPUs, 240 TAUs, and 48 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
GeForce GTX 780 Ti		250 Watts
	Difference: 194 Watts (346%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 780 Ti should be quite a bit faster than the GeForce GT 440 3GB overall. (explain)

GeForce GTX 780 Ti		336000 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 292800 (678%)

Texel Rate

The GeForce GTX 780 Ti will be much (more or less 1373%) better at texture filtering than the GeForce GT 440 3GB. (explain)

GeForce GTX 780 Ti		210000 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 195744 (1373%)

Pixel Rate

The GeForce GTX 780 Ti will be much (approximately 195%) more effective at full screen anti-aliasing than the GeForce GT 440 3GB, and should be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 780 Ti		42000 Mpixels/sec
GeForce GT 440 3GB		14256 Mpixels/sec
	Difference: 27744 (195%)

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 (counted in megabytes per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory speed. If the card has DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

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