GeForce 8600 GT 512MB DDR2 vs GeForce GTX Titan X

Intro

Compare all that to the GeForce GTX Titan X, which features a clock speed of 1000 MHz and a GDDR5 memory speed of 1750 MHz. It also uses a 384-bit memory bus, and makes use of a 28 nm design. It is comprised of 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 theoretically be a lot better than the GeForce 8600 GT 512MB DDR2 in general. (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 will be quite a bit (approximately 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

The GeForce GTX Titan X should be a lot (approximately 2122%) more effective at FSAA than the GeForce 8600 GT 512MB DDR2, and will be able to handle higher screen resolutions without losing too much performance. (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 largest amount of information (measured in MB per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the bus width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

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