GeForce 8800 GTS (G92) vs Geforce GTX 780

Intro

Compare that to the Geforce GTX 780, which features core speeds of 863 MHz on the GPU, and 1502 MHz on the 3072 MB of GDDR5 memory. It features 2304 SPUs as well as 192 TAUs and 48 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTS (G92)		135 Watts
Geforce GTX 780		250 Watts
	Difference: 115 Watts (85%)

Memory Bandwidth

Theoretically, the Geforce GTX 780 should perform much faster than the GeForce 8800 GTS (G92) in general. (explain)

Geforce GTX 780		288384 MB/sec
GeForce 8800 GTS (G92)		62080 MB/sec
	Difference: 226304 (365%)

Texel Rate

The Geforce GTX 780 should be quite a bit (more or less 298%) more effective at texture filtering than the GeForce 8800 GTS (G92). (explain)

Geforce GTX 780		165696 Mtexels/sec
GeForce 8800 GTS (G92)		41600 Mtexels/sec
	Difference: 124096 (298%)

Pixel Rate

The Geforce GTX 780 will be much (more or less 298%) more effective at full screen anti-aliasing than the GeForce 8800 GTS (G92), and will be capable of handling higher resolutions while still performing well. (explain)

Geforce GTX 780		41424 Mpixels/sec
GeForce 8800 GTS (G92)		10400 Mpixels/sec
	Difference: 31024 (298%)

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 (measured in MB per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's 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 number of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the graphics 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 most pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.