GeForce GT 340 vs GeForce GTX 780 Ti

Intro

Compare those specifications to the GeForce GTX 780 Ti, which features a clock frequency of 875 MHz and a GDDR5 memory frequency of 1750 MHz. It also makes use of a 384-bit memory bus, and uses a 28 nm design. It features 2880 SPUs, 240 Texture Address Units, and 48 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340		69 Watts
GeForce GTX 780 Ti		250 Watts
	Difference: 181 Watts (262%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 780 Ti is 518% quicker than the GeForce GT 340 overall, because of its greater bandwidth. (explain)

GeForce GTX 780 Ti		336000 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 281600 (518%)

Texel Rate

The GeForce GTX 780 Ti should be much (about 1093%) faster with regards to texture filtering than the GeForce GT 340. (explain)

GeForce GTX 780 Ti		210000 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 192400 (1093%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 780 Ti is a better choice, by far. (explain)

GeForce GTX 780 Ti		42000 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 37600 (855%)

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 maximum amount of data (measured in MB per second) that can be transported past the external memory interface in a second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the 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 number of texture map elements (texels) that can be applied 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 higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.