GeForce GTS 150 vs GeForce GTX Titan Black

Intro

Compare those specs 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 RAM. It features 2880 SPUs along with 240 TAUs and 48 Rasterization Operator Units.

Display Graphs

Hide Graphs

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 in theory be quite a bit superior to the GeForce GTS 150 in general. (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 much (about 351%) more effective at AF 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 running with high levels of AA is important to you, then the GeForce GTX Titan Black is superior to the GeForce GTS 150, by a large margin. (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 maximum amount of information (measured in MB per second) that can be transported over the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

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