GeForce GT 340 vs GeForce GTX 260 216SP 55 nm

Intro

Compare all of that to the GeForce GTX 260 216SP 55 nm, which uses a 55 nm design. nVidia has clocked the core speed at 576 MHz. The GDDR3 memory runs at a speed of 999 MHz on this particular model. It features 216 SPUs along with 72 TAUs and 28 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340		69 Watts
GeForce GTX 260 216SP 55 nm		171 Watts
	Difference: 102 Watts (148%)

Memory Bandwidth

Performance-wise, the GeForce GTX 260 216SP 55 nm should theoretically be much better than the GeForce GT 340 in general. (explain)

GeForce GTX 260 216SP 55 nm		111888 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 57488 (106%)

Texel Rate

The GeForce GTX 260 216SP 55 nm will be quite a bit (about 136%) faster with regards to anisotropic filtering than the GeForce GT 340. (explain)

GeForce GTX 260 216SP 55 nm		41472 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 23872 (136%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 260 216SP 55 nm is a better choice, and very much so. (explain)

GeForce GTX 260 216SP 55 nm		16128 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 11728 (267%)

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 largest amount of information (counted in megabytes per second) that can be moved across the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

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