GeForce GTX 285 2GB vs GeForce GTX 460 SE

Intro

Compare those specs to the GeForce GTX 460 SE, which features a clock frequency of 650 MHz and a GDDR5 memory speed of 850 MHz. It also makes use of a 256-bit memory bus, and makes use of a 40 nm design. It features 288 SPUs, 48 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 SE		150 Watts
GeForce GTX 285 2GB		204 Watts
	Difference: 54 Watts (36%)

Memory Bandwidth

Performance-wise, the GeForce GTX 285 2GB should in theory be quite a bit better than the GeForce GTX 460 SE in general. (explain)

GeForce GTX 285 2GB		158976 MB/sec
GeForce GTX 460 SE		108800 MB/sec
	Difference: 50176 (46%)

Texel Rate

The GeForce GTX 285 2GB should be quite a bit (more or less 66%) better at anisotropic filtering than the GeForce GTX 460 SE. (explain)

GeForce GTX 285 2GB		51840 Mtexels/sec
GeForce GTX 460 SE		31200 Mtexels/sec
	Difference: 20640 (66%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 460 SE is superior to the GeForce GTX 285 2GB, though only just barely. (explain)

GeForce GTX 460 SE		20800 Mpixels/sec
GeForce GTX 285 2GB		20736 Mpixels/sec
	Difference: 64 (0%)

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 largest amount of data (counted in megabytes per second) that can be moved over the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once 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, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.