GeForce 8800 GT 1GB vs Geforce GTX 670

Intro

Compare all that to the Geforce GTX 670, which uses a 28 nm design. nVidia has set the core frequency at 915 MHz. The GDDR5 RAM works at a frequency of 1500 MHz on this particular card. It features 1344 SPUs as well as 112 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 1GB		105 Watts
Geforce GTX 670		170 Watts
	Difference: 65 Watts (62%)

Memory Bandwidth

The Geforce GTX 670 should in theory be a lot faster than the GeForce 8800 GT 1GB in general. (explain)

Geforce GTX 670		192000 MB/sec
GeForce 8800 GT 1GB		57600 MB/sec
	Difference: 134400 (233%)

Texel Rate

The Geforce GTX 670 should be a lot (about 205%) more effective at texture filtering than the GeForce 8800 GT 1GB. (explain)

Geforce GTX 670		102480 Mtexels/sec
GeForce 8800 GT 1GB		33600 Mtexels/sec
	Difference: 68880 (205%)

Pixel Rate

The Geforce GTX 670 will be much (about 205%) more effective at FSAA than the GeForce 8800 GT 1GB, and will be able to handle higher screen resolutions more effectively. (explain)

Geforce GTX 670		29280 Mpixels/sec
GeForce 8800 GT 1GB		9600 Mpixels/sec
	Difference: 19680 (205%)

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 max amount of data (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 its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

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