GeForce 9800 GX2 vs GeForce GTX Titan Black

Intro

Compare those specifications to the GeForce GTX Titan Black, which uses a 28 nm design. nVidia has clocked the core speed at 889 MHz. The GDDR5 memory runs at a speed of 1750 MHz on this card. It features 2880 SPUs as well as 240 TAUs and 48 Rasterization Operator Units.

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

Theoretically, the GeForce GTX Titan Black should be much faster than the GeForce 9800 GX2 overall. (explain)

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

Texel Rate

The GeForce GTX Titan Black will be 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 much (about 122%) more effective at AA than the GeForce 9800 GX2, and capable of handling higher screen resolutions better. (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 data (in units of megabytes per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card 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 Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.