GeForce GT 240 GDDR5 vs GeForce GTX 460 SE

Intro

Compare all of that to the GeForce GTX 460 SE, which makes use of a 40 nm design. nVidia has clocked the core frequency at 650 MHz. The GDDR5 RAM works at a speed of 850 MHz on this specific model. It features 288 SPUs as well as 48 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5		70 Watts
GeForce GTX 460 SE		150 Watts
	Difference: 80 Watts (114%)

Memory Bandwidth

In theory, the GeForce GTX 460 SE should be 100% faster than the GeForce GT 240 GDDR5 in general, because of its higher bandwidth. (explain)

GeForce GTX 460 SE		108800 MB/sec
GeForce GT 240 GDDR5		54400 MB/sec
	Difference: 54400 (100%)

Texel Rate

The GeForce GTX 460 SE is much (approximately 77%) more effective at AF than the GeForce GT 240 GDDR5. (explain)

GeForce GTX 460 SE		31200 Mtexels/sec
GeForce GT 240 GDDR5		17600 Mtexels/sec
	Difference: 13600 (77%)

Pixel Rate

The GeForce GTX 460 SE is quite a bit (about 373%) better at anti-aliasing than the GeForce GT 240 GDDR5, and able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 460 SE		20800 Mpixels/sec
GeForce GT 240 GDDR5		4400 Mpixels/sec
	Difference: 16400 (373%)

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 moved past the external memory interface within a second. It's calculated by multiplying the bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.