GeForce GT 340 vs GeForce GTX 550 Ti

Intro

Compare those specifications to the GeForce GTX 550 Ti, which comes with a core clock speed of 900 MHz and a GDDR5 memory speed of 1026 MHz. It also features a 192-bit memory bus, and uses a 40 nm design. It features 192 SPUs, 32 Texture Address Units, and 24 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 550 Ti		116 Watts
	Difference: 47 Watts (68%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 550 Ti should theoretically be a lot superior to the GeForce GT 340 in general. (explain)

GeForce GTX 550 Ti		98496 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 44096 (81%)

Texel Rate

The GeForce GTX 550 Ti will be a lot (about 64%) faster with regards to AF than the GeForce GT 340. (explain)

GeForce GTX 550 Ti		28800 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 11200 (64%)

Pixel Rate

The GeForce GTX 550 Ti should be a lot (approximately 391%) more effective at AA than the GeForce GT 340, and should be capable of handling higher screen resolutions better. (explain)

GeForce GTX 550 Ti		21600 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 17200 (391%)

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 data (counted in MB per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type memory, it 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 anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a 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 amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel 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.