GeForce GTX 850M vs Radeon RX 6900 XT

Intro

Compare those specs to the Radeon RX 6900 XT, which has core clock speeds of 1825 MHz on the GPU, and 2000 MHz on the 16384 MB of GDDR6 memory. It features 5120 SPUs along with 320 Texture Address Units and 128 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M		40 Watts
Radeon RX 6900 XT		300 Watts
	Difference: 260 Watts (650%)

Memory Bandwidth

The Radeon RX 6900 XT should in theory be much faster than the GeForce GTX 850M in general. (explain)

Radeon RX 6900 XT		524288 MB/sec
GeForce GTX 850M		32000 MB/sec
	Difference: 492288 (1538%)

Texel Rate

The Radeon RX 6900 XT is quite a bit (more or less 1567%) better at AF than the GeForce GTX 850M. (explain)

Radeon RX 6900 XT		584000 Mtexels/sec
GeForce GTX 850M		35040 Mtexels/sec
	Difference: 548960 (1567%)

Pixel Rate

The Radeon RX 6900 XT will be a lot (more or less 1567%) better at FSAA than the GeForce GTX 850M, and should be capable of handling higher resolutions without slowing down too much. (explain)

Radeon RX 6900 XT		233600 Mpixels/sec
GeForce GTX 850M		14016 Mpixels/sec
	Difference: 219584 (1567%)

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: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the video 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 maximum number of pixels the video card can possibly record to its local memory in one 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 - aka Render Output Units) are responsible for outputting the pixels (image) to 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 get to the maximum fill rate.