GeForce GT 340 vs GeForce GTX 460 2GB

Intro

Compare those specs to the GeForce GTX 460 2GB, which has a GPU core clock speed of 675 MHz, and 2048 MB of GDDR5 RAM running at 900 MHz through a 256-bit bus. It also is made up of 336 SPUs, 56 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340		69 Watts
GeForce GTX 460 2GB		160 Watts
	Difference: 91 Watts (132%)

Memory Bandwidth

The GeForce GTX 460 2GB, in theory, should be much faster than the GeForce GT 340 in general. (explain)

GeForce GTX 460 2GB		115200 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 60800 (112%)

Texel Rate

The GeForce GTX 460 2GB will be quite a bit (about 115%) more effective at texture filtering than the GeForce GT 340. (explain)

GeForce GTX 460 2GB		37800 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 20200 (115%)

Pixel Rate

The GeForce GTX 460 2GB should be quite a bit (about 391%) more effective at full screen anti-aliasing than the GeForce GT 340, and should be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 460 2GB		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: Bandwidth is the largest amount of information (counted in MB per second) that can be transported past the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

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