GeForce GTX 850M vs GeForce GTX Titan X

Intro

Compare that to the GeForce GTX Titan X, which makes use of a 28 nm design. nVidia has clocked the core speed at 1000 MHz. The GDDR5 memory is set to run at a speed of 1750 MHz on this particular model. It features 3072 SPUs as well as 192 Texture Address Units and 96 Rasterization Operator Units.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX Titan X		17879 points
GeForce GTX 850M		3340 points
	Difference: 14539 (435%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M		40 Watts
GeForce GTX Titan X		250 Watts
	Difference: 210 Watts (525%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX Titan X should perform quite a bit faster than the GeForce GTX 850M overall. (explain)

GeForce GTX Titan X		336000 MB/sec
GeForce GTX 850M		32000 MB/sec
	Difference: 304000 (950%)

Texel Rate

The GeForce GTX Titan X is quite a bit (about 448%) better at texture filtering than the GeForce GTX 850M. (explain)

GeForce GTX Titan X		192000 Mtexels/sec
GeForce GTX 850M		35040 Mtexels/sec
	Difference: 156960 (448%)

Pixel Rate

The GeForce GTX Titan X is quite a bit (approximately 585%) faster with regards to FSAA than the GeForce GTX 850M, and will be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX Titan X		96000 Mpixels/sec
GeForce GTX 850M		14016 Mpixels/sec
	Difference: 81984 (585%)

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 megabytes per second) that can be transferred across the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.