GeForce GTX 870M vs Radeon RX 6900 XT

Intro

Compare those specs to the Radeon RX 6900 XT, which features GPU clock speed of 1825 MHz, and 16384 MB of GDDR6 memory set to run at 2000 MHz through a 256-bit bus. It also features 5120 SPUs, 320 Texture Address Units, and 128 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 870M		110 Watts
Radeon RX 6900 XT		300 Watts
	Difference: 190 Watts (173%)

Memory Bandwidth

The Radeon RX 6900 XT, in theory, should be quite a bit faster than the GeForce GTX 870M overall. (explain)

Radeon RX 6900 XT		524288 MB/sec
GeForce GTX 870M		96000 MB/sec
	Difference: 428288 (446%)

Texel Rate

The Radeon RX 6900 XT will be much (approximately 454%) faster with regards to AF than the GeForce GTX 870M. (explain)

Radeon RX 6900 XT		584000 Mtexels/sec
GeForce GTX 870M		105392 Mtexels/sec
	Difference: 478608 (454%)

Pixel Rate

The Radeon RX 6900 XT is a lot (about 934%) faster with regards to AA than the GeForce GTX 870M, and also capable of handling higher screen resolutions better. (explain)

Radeon RX 6900 XT		233600 Mpixels/sec
GeForce GTX 870M		22584 Mpixels/sec
	Difference: 211016 (934%)

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 largest amount of data (counted in MB per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, 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 anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.