GeForce GT 440 1.5GB vs GeForce GTX 780 Ti

Intro

Compare all that to the GeForce GTX 780 Ti, which has GPU clock speed of 875 MHz, and 3072 MB of GDDR5 RAM set to run at 1750 MHz through a 384-bit bus. It also is comprised of 2880 Stream Processors, 240 Texture Address Units, and 48 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 780 Ti		10900 points
GeForce GT 440 1.5GB		840 points
	Difference: 10060 (1198%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
GeForce GTX 780 Ti		250 Watts
	Difference: 194 Watts (346%)

Memory Bandwidth

In theory, the GeForce GTX 780 Ti is 678% faster than the GeForce GT 440 1.5GB overall, due to its higher data rate. (explain)

GeForce GTX 780 Ti		336000 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 292800 (678%)

Texel Rate

The GeForce GTX 780 Ti will be a lot (about 1373%) more effective at texture filtering than the GeForce GT 440 1.5GB. (explain)

GeForce GTX 780 Ti		210000 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 195744 (1373%)

Pixel Rate

The GeForce GTX 780 Ti should be a lot (about 195%) faster with regards to FSAA than the GeForce GT 440 1.5GB, and capable of handling higher screen resolutions better. (explain)

GeForce GTX 780 Ti		42000 Mpixels/sec
GeForce GT 440 1.5GB		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 largest amount of information (in units of megabytes per second) that can be transported past the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total number of texture units of the card by the core clock 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 per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.