GeForce GT 340 vs GeForce GTX 460 2GB

Intro

Compare all that to the GeForce GTX 460 2GB, which comes with a GPU core clock speed of 675 MHz, and 2048 MB of GDDR5 RAM set to run at 900 MHz through a 256-bit bus. It also is comprised of 336 SPUs, 56 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

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

Theoretically speaking, the GeForce GTX 460 2GB should be 112% faster than the GeForce GT 340 overall, due to its greater bandwidth. (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%) better 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 will be a lot (more or less 391%) more effective at FSAA than the GeForce GT 340, and capable of handling higher 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 data (counted in megabytes per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range 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 number of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka 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, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.