GeForce GTS 450 vs Nvidia Titan X

Intro

Compare all that to the Nvidia Titan X, which features a clock frequency of 1417 MHz and a GDDR5X memory frequency of 1251 MHz. It also features a 384-bit bus, and makes use of a 16 nm design. It is made up of 3584 SPUs, 224 TAUs, and 96 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450		106 Watts
Nvidia Titan X		250 Watts
	Difference: 144 Watts (136%)

Memory Bandwidth

In theory, the Nvidia Titan X should be 751% faster than the GeForce GTS 450 in general, because of its greater data rate. (explain)

Nvidia Titan X		491520 MB/sec
GeForce GTS 450		57728 MB/sec
	Difference: 433792 (751%)

Texel Rate

The Nvidia Titan X is quite a bit (more or less 1167%) faster with regards to anisotropic filtering than the GeForce GTS 450. (explain)

Nvidia Titan X		317408 Mtexels/sec
GeForce GTS 450		25056 Mtexels/sec
	Difference: 292352 (1167%)

Pixel Rate

The Nvidia Titan X should be quite a bit (approximately 986%) better at AA than the GeForce GTS 450, and also will be able to handle higher screen resolutions while still performing well. (explain)

Nvidia Titan X		136032 Mpixels/sec
GeForce GTS 450		12528 Mpixels/sec
	Difference: 123504 (986%)

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 largest amount of information (measured in MB per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total texture units of the card by the core 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 applied in one second.

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