GeForce 8800 GTX vs GeForce GTX 460 (OEM)

Intro

Compare that to the GeForce GTX 460 (OEM), which features a GPU core clock speed of 650 MHz, and 1024 MB of GDDR5 memory set to run at 850 MHz through a 256-bit bus. It also is made up of 336 Stream Processors, 56 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 (OEM)		150 Watts
GeForce 8800 GTX		155 Watts
	Difference: 5 Watts (3%)

Memory Bandwidth

The GeForce GTX 460 (OEM) should in theory perform a lot faster than the GeForce 8800 GTX overall. (explain)

GeForce GTX 460 (OEM)		108800 MB/sec
GeForce 8800 GTX		86400 MB/sec
	Difference: 22400 (26%)

Texel Rate

The GeForce 8800 GTX will be a little bit (about 1%) better at texture filtering than the GeForce GTX 460 (OEM). (explain)

GeForce 8800 GTX		36800 Mtexels/sec
GeForce GTX 460 (OEM)		36400 Mtexels/sec
	Difference: 400 (1%)

Pixel Rate

The GeForce GTX 460 (OEM) will be a lot (more or less 51%) better at FSAA than the GeForce 8800 GTX, and should be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 460 (OEM)		20800 Mpixels/sec
GeForce 8800 GTX		13800 Mpixels/sec
	Difference: 7000 (51%)

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 largest amount of information (in units of megabytes per second) that can be transferred past the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.