GeForce 8800 GTX vs GeForce GTX 285 1GB

Intro

Compare that to the GeForce GTX 285 1GB, which comes with core speeds of 648 MHz on the GPU, and 1242 MHz on the 1024 MB of GDDR3 RAM. It features 240 SPUs along with 80 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTX		155 Watts
GeForce GTX 285 1GB		204 Watts
	Difference: 49 Watts (32%)

Memory Bandwidth

In theory, the GeForce GTX 285 1GB should be much faster than the GeForce 8800 GTX in general. (explain)

GeForce GTX 285 1GB		158976 MB/sec
GeForce 8800 GTX		86400 MB/sec
	Difference: 72576 (84%)

Texel Rate

The GeForce GTX 285 1GB is a lot (more or less 41%) better at AF than the GeForce 8800 GTX. (explain)

GeForce GTX 285 1GB		51840 Mtexels/sec
GeForce 8800 GTX		36800 Mtexels/sec
	Difference: 15040 (41%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 285 1GB is a better choice, by far. (explain)

GeForce GTX 285 1GB		20736 Mpixels/sec
GeForce 8800 GTX		13800 Mpixels/sec
	Difference: 6936 (50%)

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 maximum amount of data (counted in MB per second) that can be transferred over the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.