GeForce 9800 GX2 vs GeForce GTX Titan Black

Intro

Compare those specifications to the GeForce GTX Titan Black, which comes with GPU clock speed of 889 MHz, and 6144 MB of GDDR5 RAM set to run at 1750 MHz through a 384-bit bus. It also is comprised of 2880 Stream Processors, 240 TAUs, and 48 Raster Operation Units.

Display Graphs

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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

Theoretically speaking, the GeForce GTX Titan Black should perform a lot 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 is a lot (more or less 178%) faster with regards to anisotropic 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

The GeForce GTX Titan Black is quite a bit (more or less 122%) faster with regards to full screen anti-aliasing than the GeForce 9800 GX2, and will be able to handle higher screen resolutions without slowing down too much. (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 largest amount of information (in units of MB per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's 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 can be applied in one second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

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