GeForce GTS 450 vs Nvidia Titan X

Intro

Compare those specs to the Nvidia Titan X, which comes with a clock speed of 1417 MHz and a GDDR5X memory frequency of 1251 MHz. It also makes use of a 384-bit bus, and uses a 16 nm design. It is made up of 3584 SPUs, 224 TAUs, and 96 Raster Operation Units.

Display Graphs

Hide Graphs

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 overall, because of its higher bandwidth. (explain)

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

Texel Rate

The Nvidia Titan X will be much (about 1167%) more effective at texture 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 will be quite a bit (about 986%) better at full screen anti-aliasing than the GeForce GTS 450, and also 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 max amount of information (in units of MB per second) that can be transferred past the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster 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 per second. This figure is worked out by multiplying the total amount of texture units of the card 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 applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.