GeForce 8800 GT 256MB vs GeForce GTX 460 (OEM)

Intro

Compare all of that to the GeForce GTX 460 (OEM), which uses a 40 nm design. nVidia has set the core speed at 650 MHz. The GDDR5 RAM works at a speed of 850 MHz on this card. It features 336 SPUs along with 56 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 256MB		105 Watts
GeForce GTX 460 (OEM)		150 Watts
	Difference: 45 Watts (43%)

Memory Bandwidth

The GeForce GTX 460 (OEM) should theoretically perform quite a bit faster than the GeForce 8800 GT 256MB overall. (explain)

GeForce GTX 460 (OEM)		108800 MB/sec
GeForce 8800 GT 256MB		44800 MB/sec
	Difference: 64000 (143%)

Texel Rate

The GeForce GTX 460 (OEM) will be a bit (more or less 8%) faster with regards to AF than the GeForce 8800 GT 256MB. (explain)

GeForce GTX 460 (OEM)		36400 Mtexels/sec
GeForce 8800 GT 256MB		33600 Mtexels/sec
	Difference: 2800 (8%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 460 (OEM) is superior to the GeForce 8800 GT 256MB, by far. (explain)

GeForce GTX 460 (OEM)		20800 Mpixels/sec
GeForce 8800 GT 256MB		9600 Mpixels/sec
	Difference: 11200 (117%)

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 maximum amount of information (measured in MB per second) that can be transported across the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the 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 amount of pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.