GeForce GTX 850M vs GeForce RTX 2080 SUPER

Intro

Compare that to the GeForce RTX 2080 SUPER, which uses a 12 nm design. nVidia has set the core frequency at 1650 MHz. The GDDR6 memory is set to run at a frequency of 1937 MHz on this card. It features 3072 SPUs as well as 192 TAUs and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M		40 Watts
GeForce RTX 2080 SUPER		250 Watts
	Difference: 210 Watts (525%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 2080 SUPER should be a lot faster than the GeForce GTX 850M in general. (explain)

GeForce RTX 2080 SUPER		507904 MB/sec
GeForce GTX 850M		32000 MB/sec
	Difference: 475904 (1487%)

Texel Rate

The GeForce RTX 2080 SUPER will be quite a bit (more or less 804%) faster with regards to anisotropic filtering than the GeForce GTX 850M. (explain)

GeForce RTX 2080 SUPER		316800 Mtexels/sec
GeForce GTX 850M		35040 Mtexels/sec
	Difference: 281760 (804%)

Pixel Rate

The GeForce RTX 2080 SUPER will be a lot (about 653%) faster with regards to FSAA than the GeForce GTX 850M, and will be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce RTX 2080 SUPER		105600 Mpixels/sec
GeForce GTX 850M		14016 Mpixels/sec
	Difference: 91584 (653%)

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 one second. The number is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core clock speed. 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 many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.