GeForce GT 240 GDDR5 vs GeForce GTX 460 SE

Intro

Compare all that to the GeForce GTX 460 SE, which features a clock frequency of 650 MHz and a GDDR5 memory frequency of 850 MHz. It also uses a 256-bit memory bus, and makes use of a 40 nm design. It features 288 SPUs, 48 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 SE		150 Watts
	Difference: 80 Watts (114%)

Memory Bandwidth

The GeForce GTX 460 SE should in theory perform quite a bit faster than the GeForce GT 240 GDDR5 in general. (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 should be quite a bit (about 77%) faster with regards to texture filtering 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 a lot (approximately 373%) faster with regards to FSAA than the GeForce GT 240 GDDR5, and able to handle higher resolutions better. (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 maximum amount of information (counted in MB per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, it must 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 high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.