GeForce GTX 285 2GB vs GeForce GTX 460 2GB

Intro

Compare those specifications to the GeForce GTX 460 2GB, which has clock speeds of 675 MHz on the GPU, and 900 MHz on the 2048 MB of GDDR5 memory. It features 336 SPUs as well as 56 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 2GB		160 Watts
GeForce GTX 285 2GB		204 Watts
	Difference: 44 Watts (28%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 285 2GB should in theory be quite a bit superior to the GeForce GTX 460 2GB in general. (explain)

GeForce GTX 285 2GB		158976 MB/sec
GeForce GTX 460 2GB		115200 MB/sec
	Difference: 43776 (38%)

Texel Rate

The GeForce GTX 285 2GB should be a lot (about 37%) more effective at anisotropic filtering than the GeForce GTX 460 2GB. (explain)

GeForce GTX 285 2GB		51840 Mtexels/sec
GeForce GTX 460 2GB		37800 Mtexels/sec
	Difference: 14040 (37%)

Pixel Rate

The GeForce GTX 460 2GB will be just a bit (about 4%) faster with regards to full screen anti-aliasing than the GeForce GTX 285 2GB, and also will be able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 460 2GB		21600 Mpixels/sec
GeForce GTX 285 2GB		20736 Mpixels/sec
	Difference: 864 (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: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be transported over the external memory interface within a 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 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 anti-aliasing, 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 is worked out by multiplying the total amount of texture units of the card 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 maximum amount of pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. The number 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 outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.