GeForce 8800 GT 1GB vs Geforce GTX 780

Intro

Compare those specs to the Geforce GTX 780, which comes with a core clock speed of 863 MHz and a GDDR5 memory speed of 1502 MHz. It also uses a 384-bit memory bus, and uses a 28 nm design. It is comprised of 2304 SPUs, 192 Texture Address Units, and 48 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 1GB		105 Watts
Geforce GTX 780		250 Watts
	Difference: 145 Watts (138%)

Memory Bandwidth

Theoretically, the Geforce GTX 780 should be a lot faster than the GeForce 8800 GT 1GB in general. (explain)

Geforce GTX 780		288384 MB/sec
GeForce 8800 GT 1GB		57600 MB/sec
	Difference: 230784 (401%)

Texel Rate

The Geforce GTX 780 should be quite a bit (about 393%) faster with regards to anisotropic filtering than the GeForce 8800 GT 1GB. (explain)

Geforce GTX 780		165696 Mtexels/sec
GeForce 8800 GT 1GB		33600 Mtexels/sec
	Difference: 132096 (393%)

Pixel Rate

If using a high resolution is important to you, then the Geforce GTX 780 is superior to the GeForce 8800 GT 1GB, and very much so. (explain)

Geforce GTX 780		41424 Mpixels/sec
GeForce 8800 GT 1GB		9600 Mpixels/sec
	Difference: 31824 (332%)

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 information (in units of megabytes per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 applied in one second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The better 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 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 worked out by multiplying the amount of Raster Operations Pipelines 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 many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.