GeForce GTS 150 vs GeForce GTX Titan Black

Intro

Compare those specifications to the GeForce GTX Titan Black, which comes with GPU core speed of 889 MHz, and 6144 MB of GDDR5 RAM set to run at 1750 MHz through a 384-bit bus. It also is made up of 2880 SPUs, 240 TAUs, and 48 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 150		141 Watts
GeForce GTX Titan Black		250 Watts
	Difference: 109 Watts (77%)

Memory Bandwidth

The GeForce GTX Titan Black should in theory be much faster than the GeForce GTS 150 overall. (explain)

GeForce GTX Titan Black		336000 MB/sec
GeForce GTS 150		32000 MB/sec
	Difference: 304000 (950%)

Texel Rate

The GeForce GTX Titan Black will be much (more or less 351%) better at texture filtering than the GeForce GTS 150. (explain)

GeForce GTX Titan Black		213360 Mtexels/sec
GeForce GTS 150		47360 Mtexels/sec
	Difference: 166000 (351%)

Pixel Rate

The GeForce GTX Titan Black will be quite a bit (about 260%) more effective at AA than the GeForce GTS 150, and also should be able to handle higher resolutions while still performing well. (explain)

GeForce GTX Titan Black		42672 Mpixels/sec
GeForce GTS 150		11840 Mpixels/sec
	Difference: 30832 (260%)

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: Bandwidth is the max amount of data (counted in megabytes per second) that can be moved over the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better 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 amount of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at 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 the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill 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.