GeForce GT 340 vs GeForce GTX 480

Intro

Compare that to the GeForce GTX 480, which comes with core speeds of 700 MHz on the GPU, and 924 MHz on the 1536 MB of GDDR5 RAM. It features 480 SPUs along with 60 TAUs and 48 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340		69 Watts
GeForce GTX 480		250 Watts
	Difference: 181 Watts (262%)

Memory Bandwidth

The GeForce GTX 480, in theory, should perform a lot faster than the GeForce GT 340 in general. (explain)

GeForce GTX 480		177408 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 123008 (226%)

Texel Rate

The GeForce GTX 480 is quite a bit (approximately 139%) more effective at texture filtering than the GeForce GT 340. (explain)

GeForce GTX 480		42000 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 24400 (139%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 480 is superior to the GeForce GT 340, and very much so. (explain)

GeForce GTX 480		33600 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 29200 (664%)

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 data (counted in MB per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 number of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total texture units of the card by the core 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 a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.