GeForce GTX 285 2GB vs GeForce GTX 460 (OEM)

Intro

Compare all of that to the GeForce GTX 460 (OEM), which uses a 40 nm design. nVidia has clocked the core frequency at 650 MHz. The GDDR5 memory runs at a speed of 850 MHz on this model. It features 336 SPUs as well as 56 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Theoretically speaking, the GeForce GTX 285 2GB should be 46% quicker than the GeForce GTX 460 (OEM) overall, due to its greater data rate. (explain)

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

Texel Rate

The GeForce GTX 285 2GB is quite a bit (approximately 42%) faster with regards to anisotropic filtering than the GeForce GTX 460 (OEM). (explain)

GeForce GTX 285 2GB		51840 Mtexels/sec
GeForce GTX 460 (OEM)		36400 Mtexels/sec
	Difference: 15440 (42%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 460 (OEM) is superior to the GeForce GTX 285 2GB, not by a very large margin though. (explain)

GeForce GTX 460 (OEM)		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 max amount of information (in units of megabytes per second) that can be transported 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 RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR 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 calculated by multiplying the total number of texture units of the card 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 one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.