GeForce GT 240 GDDR5 1GB vs GeForce GTX 260 Core 216

Intro

Compare all of that to the GeForce GTX 260 Core 216, which features a GPU core clock speed of 576 MHz, and 896 MB of GDDR3 memory running at 999 MHz through a 448-bit bus. It also is comprised of 216 SPUs, 72 Texture Address Units, and 28 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 1GB		70 Watts
GeForce GTX 260 Core 216		202 Watts
	Difference: 132 Watts (189%)

Memory Bandwidth

The GeForce GTX 260 Core 216 should theoretically perform quite a bit faster than the GeForce GT 240 GDDR5 1GB in general. (explain)

GeForce GTX 260 Core 216		111888 MB/sec
GeForce GT 240 GDDR5 1GB		54400 MB/sec
	Difference: 57488 (106%)

Texel Rate

The GeForce GTX 260 Core 216 is quite a bit (more or less 136%) better at AF than the GeForce GT 240 GDDR5 1GB. (explain)

GeForce GTX 260 Core 216		41472 Mtexels/sec
GeForce GT 240 GDDR5 1GB		17600 Mtexels/sec
	Difference: 23872 (136%)

Pixel Rate

The GeForce GTX 260 Core 216 will be a lot (more or less 267%) more effective at anti-aliasing than the GeForce GT 240 GDDR5 1GB, and also will be capable of handling higher screen resolutions better. (explain)

GeForce GTX 260 Core 216		16128 Mpixels/sec
GeForce GT 240 GDDR5 1GB		4400 Mpixels/sec
	Difference: 11728 (267%)

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 (counted in megabytes per second) that can be transported across the external memory interface in one second. It is worked out by multiplying the interface width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is calculated by multiplying the total number of 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 one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory in one 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 called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.