GeForce 8600 GT 256MB GDDR3 vs GeForce GTX Titan Black

Intro

Compare all of that to the GeForce GTX Titan Black, which has core clock speeds of 889 MHz on the GPU, and 1750 MHz on the 6144 MB of GDDR5 memory. It features 2880 SPUs as well as 240 Texture Address Units and 48 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 256MB GDDR3		47 Watts
GeForce GTX Titan Black		250 Watts
	Difference: 203 Watts (432%)

Memory Bandwidth

Theoretically, the GeForce GTX Titan Black should perform much faster than the GeForce 8600 GT 256MB GDDR3 in general. (explain)

GeForce GTX Titan Black		336000 MB/sec
GeForce 8600 GT 256MB GDDR3		22400 MB/sec
	Difference: 313600 (1400%)

Texel Rate

The GeForce GTX Titan Black will be quite a bit (about 2369%) better at texture filtering than the GeForce 8600 GT 256MB GDDR3. (explain)

GeForce GTX Titan Black		213360 Mtexels/sec
GeForce 8600 GT 256MB GDDR3		8640 Mtexels/sec
	Difference: 204720 (2369%)

Pixel Rate

The GeForce GTX Titan Black is much (more or less 888%) more effective at full screen anti-aliasing than the GeForce 8600 GT 256MB GDDR3, and should be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX Titan Black		42672 Mpixels/sec
GeForce 8600 GT 256MB GDDR3		4320 Mpixels/sec
	Difference: 38352 (888%)

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: Memory bandwidth is the largest amount of data (measured in MB per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.