GeForce 825M vs Nvidia Titan X

Intro

Compare all of that to the Nvidia Titan X, which makes use of a 16 nm design. nVidia has clocked the core speed at 1417 MHz. The GDDR5X RAM works at a frequency of 1251 MHz on this card. It features 3584 SPUs along with 224 Texture Address Units and 96 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 825M		33 Watts
Nvidia Titan X		250 Watts
	Difference: 217 Watts (658%)

Memory Bandwidth

As far as performance goes, the Nvidia Titan X should in theory be much superior to the GeForce 825M in general. (explain)

Nvidia Titan X		491520 MB/sec
GeForce 825M		14400 MB/sec
	Difference: 477120 (3313%)

Texel Rate

The Nvidia Titan X will be much (approximately 2234%) more effective at texture filtering than the GeForce 825M. (explain)

Nvidia Titan X		317408 Mtexels/sec
GeForce 825M		13600 Mtexels/sec
	Difference: 303808 (2234%)

Pixel Rate

The Nvidia Titan X is much (more or less 1900%) more effective at full screen anti-aliasing than the GeForce 825M, and also should be able to handle higher screen resolutions while still performing well. (explain)

Nvidia Titan X		136032 Mpixels/sec
GeForce 825M		6800 Mpixels/sec
	Difference: 129232 (1900%)

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 past the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.