GeForce 8800 GT 1GB vs GeForce GTX 480

Intro

Compare those specs to the GeForce GTX 480, which comes with a core clock frequency of 700 MHz and a GDDR5 memory frequency of 924 MHz. It also features a 384-bit memory bus, and makes use of a 40 nm design. It is made up of 480 SPUs, 60 TAUs, and 48 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 1GB		105 Watts
GeForce GTX 480		250 Watts
	Difference: 145 Watts (138%)

Memory Bandwidth

Theoretically, the GeForce GTX 480 should perform much faster than the GeForce 8800 GT 1GB overall. (explain)

GeForce GTX 480		177408 MB/sec
GeForce 8800 GT 1GB		57600 MB/sec
	Difference: 119808 (208%)

Texel Rate

The GeForce GTX 480 is a lot (about 25%) more effective at texture filtering than the GeForce 8800 GT 1GB. (explain)

GeForce GTX 480		42000 Mtexels/sec
GeForce 8800 GT 1GB		33600 Mtexels/sec
	Difference: 8400 (25%)

Pixel Rate

The GeForce GTX 480 will be much (more or less 250%) faster with regards to FSAA than the GeForce 8800 GT 1GB, and should be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 480		33600 Mpixels/sec
GeForce 8800 GT 1GB		9600 Mpixels/sec
	Difference: 24000 (250%)

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 MB per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster 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 in one second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.