GeForce GTX 850M vs Radeon RX 6900 XT

Intro

Compare those specs to the Radeon RX 6900 XT, which features a clock speed of 1825 MHz and a GDDR6 memory speed of 2000 MHz. It also features a 256-bit bus, and makes use of a 7 nm design. It is made up of 5120 SPUs, 320 TAUs, and 128 ROPs.

Display Graphs

Hide Graphs

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

Theoretically speaking, the Radeon RX 6900 XT will be 1538% quicker than the GeForce GTX 850M in general, due to its greater data rate. (explain)

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

Texel Rate

The Radeon RX 6900 XT will be much (approximately 1567%) more effective at texture filtering 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 is much (about 1567%) more effective at full screen anti-aliasing than the GeForce GTX 850M, and capable of handling higher resolutions while still performing well. (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 information (in units of MB per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better 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 texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many 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.