GeForce GT 340 1GB vs GeForce GTX 590

Intro

Compare all of that to the GeForce GTX 590, which uses a 40 nm design. nVidia has clocked the core speed at 607 MHz. The GDDR5 RAM runs at a frequency of 855 MHz on this model. It features 512 SPUs as well as 64 Texture Address Units and 48 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB		69 Watts
GeForce GTX 590		365 Watts
	Difference: 296 Watts (429%)

Memory Bandwidth

The GeForce GTX 590 should theoretically perform much faster than the GeForce GT 340 1GB in general. (explain)

GeForce GTX 590		328320 MB/sec
GeForce GT 340 1GB		54400 MB/sec
	Difference: 273920 (504%)

Texel Rate

The GeForce GTX 590 should be a lot (approximately 341%) faster with regards to AF than the GeForce GT 340 1GB. (explain)

GeForce GTX 590		77696 Mtexels/sec
GeForce GT 340 1GB		17600 Mtexels/sec
	Difference: 60096 (341%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 590 is the winner, by far. (explain)

GeForce GTX 590		58272 Mpixels/sec
GeForce GT 340 1GB		4400 Mpixels/sec
	Difference: 53872 (1224%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of MB per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill 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.