GeForce GT 240 GDDR5 vs GeForce GTX 460 1GB

Intro

Compare those specs to the GeForce GTX 460 1GB, which comes with a clock speed of 675 MHz and a GDDR5 memory frequency of 900 MHz. It also makes use of a 256-bit bus, and uses a 40 nm design. It is made up 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 240 GDDR5		70 Watts
GeForce GTX 460 1GB		160 Watts
	Difference: 90 Watts (129%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 460 1GB should perform much faster than the GeForce GT 240 GDDR5 overall. (explain)

GeForce GTX 460 1GB		115200 MB/sec
GeForce GT 240 GDDR5		54400 MB/sec
	Difference: 60800 (112%)

Texel Rate

The GeForce GTX 460 1GB is a lot (about 115%) better at AF than the GeForce GT 240 GDDR5. (explain)

GeForce GTX 460 1GB		37800 Mtexels/sec
GeForce GT 240 GDDR5		17600 Mtexels/sec
	Difference: 20200 (115%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 460 1GB is the winner, and very much so. (explain)

GeForce GTX 460 1GB		21600 Mpixels/sec
GeForce GT 240 GDDR5		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 max amount of information (measured in MB per second) that can be transferred across the external memory interface in one second. It's worked out by multiplying the card's 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 better the card's memory bandwidth, the better 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 are applied per second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel 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.