GeForce GT 340 vs GeForce GTX 460

Intro

Compare all that to the GeForce GTX 460, which has core speeds of 675 MHz on the GPU, and 900 MHz on the 768 MB of GDDR5 memory. It features 336 SPUs as well as 56 Texture Address Units and 24 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340		69 Watts
GeForce GTX 460		150 Watts
	Difference: 81 Watts (117%)

Memory Bandwidth

In theory, the GeForce GTX 460 should be 59% quicker than the GeForce GT 340 in general, because of its greater bandwidth. (explain)

GeForce GTX 460		86400 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 32000 (59%)

Texel Rate

The GeForce GTX 460 should be a lot (more or less 115%) more effective at texture filtering than the GeForce GT 340. (explain)

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

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 460 is the winner, and very much so. (explain)

GeForce GTX 460		16200 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 11800 (268%)

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 information (counted in MB per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, it 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 number of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can 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 colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.