GeForce GTS 450 1GB vs GeForce GTX Titan Black

Intro

Compare those specs to the GeForce GTX Titan Black, which has a core clock frequency of 889 MHz and a GDDR5 memory frequency of 1750 MHz. It also makes use of a 384-bit bus, and makes use of a 28 nm design. It is made up of 2880 SPUs, 240 Texture Address Units, and 48 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 1GB		106 Watts
GeForce GTX Titan Black		250 Watts
	Difference: 144 Watts (136%)

Memory Bandwidth

In theory, the GeForce GTX Titan Black should perform a lot faster than the GeForce GTS 450 1GB in general. (explain)

GeForce GTX Titan Black		336000 MB/sec
GeForce GTS 450 1GB		57728 MB/sec
	Difference: 278272 (482%)

Texel Rate

The GeForce GTX Titan Black will be a lot (more or less 752%) better at anisotropic filtering than the GeForce GTS 450 1GB. (explain)

GeForce GTX Titan Black		213360 Mtexels/sec
GeForce GTS 450 1GB		25056 Mtexels/sec
	Difference: 188304 (752%)

Pixel Rate

The GeForce GTX Titan Black is quite a bit (more or less 241%) faster with regards to full screen anti-aliasing than the GeForce GTS 450 1GB, and should be capable of handling higher resolutions more effectively. (explain)

GeForce GTX Titan Black		42672 Mpixels/sec
GeForce GTS 450 1GB		12528 Mpixels/sec
	Difference: 30144 (241%)

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 information (measured in MB per second) that can be transferred over the external memory interface in a second. It is calculated by multiplying the interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This number 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 applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write 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 clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.