GeForce GTX 460 1GB vs GeForce GTX 460 SE

Intro

Compare those specs to the GeForce GTX 460 SE, which comes with GPU clock speed of 650 MHz, and 1024 MB of GDDR5 RAM running at 850 MHz through a 256-bit bus. It also is comprised of 288 SPUs, 48 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 SE		150 Watts
GeForce GTX 460 1GB		160 Watts
	Difference: 10 Watts (7%)

Memory Bandwidth

The GeForce GTX 460 1GB, in theory, should be just a bit faster than the GeForce GTX 460 SE overall. (explain)

GeForce GTX 460 1GB		115200 MB/sec
GeForce GTX 460 SE		108800 MB/sec
	Difference: 6400 (6%)

Texel Rate

The GeForce GTX 460 1GB will be a lot (more or less 21%) faster with regards to anisotropic filtering than the GeForce GTX 460 SE. (explain)

GeForce GTX 460 1GB		37800 Mtexels/sec
GeForce GTX 460 SE		31200 Mtexels/sec
	Difference: 6600 (21%)

Pixel Rate

The GeForce GTX 460 1GB is a little bit (more or less 4%) more effective at anti-aliasing than the GeForce GTX 460 SE, and also will be able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 460 1GB		21600 Mpixels/sec
GeForce GTX 460 SE		20800 Mpixels/sec
	Difference: 800 (4%)

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 data (measured in megabytes per second) that can be moved over the external memory interface in a second. It is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better 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 per second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at 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 the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number 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 output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.