GeForce 9800 GX2 vs GeForce GTX Titan Black

Intro

Compare all that to the GeForce GTX Titan Black, which comes with GPU clock speed of 889 MHz, and 6144 MB of GDDR5 RAM running at 1750 MHz through a 384-bit bus. It also is made up of 2880 SPUs, 240 Texture Address Units, and 48 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GX2		197 Watts
GeForce GTX Titan Black		250 Watts
	Difference: 53 Watts (27%)

Memory Bandwidth

The GeForce GTX Titan Black should in theory be quite a bit faster than the GeForce 9800 GX2 in general. (explain)

GeForce GTX Titan Black		336000 MB/sec
GeForce 9800 GX2		128000 MB/sec
	Difference: 208000 (163%)

Texel Rate

The GeForce GTX Titan Black should be much (about 178%) more effective at texture filtering than the GeForce 9800 GX2. (explain)

GeForce GTX Titan Black		213360 Mtexels/sec
GeForce 9800 GX2		76800 Mtexels/sec
	Difference: 136560 (178%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX Titan Black is a better choice, by far. (explain)

GeForce GTX Titan Black		42672 Mpixels/sec
GeForce 9800 GX2		19200 Mpixels/sec
	Difference: 23472 (122%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the max amount of information (counted in MB per second) that can be transported over the external memory interface in one second. It is worked out by multiplying the interface width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher 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 amount of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number 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 rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.