GeForce 8600 GT 512MB DDR2 vs GeForce GTX Titan X

Intro

Compare all of that to the GeForce GTX Titan X, which features a GPU core clock speed of 1000 MHz, and 12288 MB of GDDR5 RAM running at 1750 MHz through a 384-bit bus. It also features 3072 SPUs, 192 TAUs, and 96 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8600 GT 512MB DDR2		47 Watts
GeForce GTX Titan X		250 Watts
	Difference: 203 Watts (432%)

Memory Bandwidth

Performance-wise, the GeForce GTX Titan X should in theory be quite a bit superior to the GeForce 8600 GT 512MB DDR2 overall. (explain)

GeForce GTX Titan X		336000 MB/sec
GeForce 8600 GT 512MB DDR2		12800 MB/sec
	Difference: 323200 (2525%)

Texel Rate

The GeForce GTX Titan X should be quite a bit (about 2122%) faster with regards to texture filtering than the GeForce 8600 GT 512MB DDR2. (explain)

GeForce GTX Titan X		192000 Mtexels/sec
GeForce 8600 GT 512MB DDR2		8640 Mtexels/sec
	Difference: 183360 (2122%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX Titan X is a better choice, and very much so. (explain)

GeForce GTX Titan X		96000 Mpixels/sec
GeForce 8600 GT 512MB DDR2		4320 Mpixels/sec
	Difference: 91680 (2122%)

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 maximum amount of information (in units of megabytes per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster 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 per second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.