GeForce GTS 150 vs GeForce GTX Titan Black

Intro

Compare those specifications to the GeForce GTX Titan Black, which features GPU core speed of 889 MHz, and 6144 MB of GDDR5 RAM running at 1750 MHz through a 384-bit bus. It also features 2880 Stream Processors, 240 Texture Address Units, 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

As far as performance goes, the GeForce GTX Titan Black should theoretically be much superior to 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 is a lot (approximately 351%) faster with regards to anisotropic 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

If using a high resolution is important to you, then the GeForce GTX Titan Black is a better choice, and very much so. (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: Memory bandwidth is the maximum amount of information (in units of megabytes per second) that can be transported past the external memory interface in a second. It is calculated by multiplying the interface width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR 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 number of texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core 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 fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.